TY  - JOUR
AU  - Šajnović, Aleksandra
AU  - Burazer, Nikola
AU  - Veselinović, Gorica
AU  - Stojadinović, Sanja M.
AU  - Gajica, G.
AU  - Trebše, P.
AU  - Glavaš, N.
AU  - Jovančićević, Branimir
PY  - 2023
UR  - http://cherry.chem.bg.ac.rs/handle/123456789/6278
AB  - In Sečovlje Salina Nature Park, the therapeutic mud matured in the natural sedimentary environmental site. This work aimed to determine the influence of the peloid maturation process on the hydrocarbon and elemental distributions, as well as changes in morphology. For this purpose, the sample before and after maturation was examined using various methods. n-Alkanes were the most abundant among saturated hydrocarbons in both immature and mature peloid samples. The results showed that the maturation mainly influenced the change in distribution and concentration (from 378 to 1958 ppm) of n-alkanes. The organic matter (OM) of the immature peloid sample was characterized by a slight prevalence of long-chain and odd carbon-numbered n-alkanes, maximizing at n-C27. However, mature peloid's OM showed a similar share of short-, mid- and long-chain n-alkanes with a slight dominance of short-chain members, maximizing at n-C16. The origin of short-chain and even carbon-numbered n-alkanes was attributed to microbial precursors (e.g., Leptolyngbyaceae). Hopanes were considerably more dominant compared to steranes in both peloids. The hopane series of immature peloid was characterized by the dominance of 22,29,30-trinor-hop-5(6)-ene (C27 hopene), as well as the presence of C30-hop-22(29)-ene (diploptene), which are widespread in cyanobacterial species. The aromatic fraction of immature peloid pointed to the predominance of polycyclic aromatic hydrocarbons (PAHs). As peloid aging progressed, the sample was richer in methyl-branched alkanes, carboxylic acids, their methyl esters, and thermodynamically more stable hopanes and steranes. The presence of elements with toxicological relevance during maturation was reduced below the limits prescribed in most of the directives for cosmetic products. It specifically refers to: As, Ni and Se. A higher concentration of total sulfur in the mature peloid can be related to gypsum precipitation in the summer and/or more intensive microbial activity.
PB  - Elsevier
T2  - Science of The Total Environment
T1  - Changes in hydrocarbons and elemental distribution in peloids during maturation processes (Sečovlje Salina Nature Park Slovenia)
VL  - 897
SP  - 165424
DO  - 10.1016/j.scitotenv.2023.165424
ER  - 

@article{
author = "Šajnović, Aleksandra and Burazer, Nikola and Veselinović, Gorica and Stojadinović, Sanja M. and Gajica, G. and Trebše, P. and Glavaš, N. and Jovančićević, Branimir",
year = "2023",
abstract = "In Sečovlje Salina Nature Park, the therapeutic mud matured in the natural sedimentary environmental site. This work aimed to determine the influence of the peloid maturation process on the hydrocarbon and elemental distributions, as well as changes in morphology. For this purpose, the sample before and after maturation was examined using various methods. n-Alkanes were the most abundant among saturated hydrocarbons in both immature and mature peloid samples. The results showed that the maturation mainly influenced the change in distribution and concentration (from 378 to 1958 ppm) of n-alkanes. The organic matter (OM) of the immature peloid sample was characterized by a slight prevalence of long-chain and odd carbon-numbered n-alkanes, maximizing at n-C27. However, mature peloid's OM showed a similar share of short-, mid- and long-chain n-alkanes with a slight dominance of short-chain members, maximizing at n-C16. The origin of short-chain and even carbon-numbered n-alkanes was attributed to microbial precursors (e.g., Leptolyngbyaceae). Hopanes were considerably more dominant compared to steranes in both peloids. The hopane series of immature peloid was characterized by the dominance of 22,29,30-trinor-hop-5(6)-ene (C27 hopene), as well as the presence of C30-hop-22(29)-ene (diploptene), which are widespread in cyanobacterial species. The aromatic fraction of immature peloid pointed to the predominance of polycyclic aromatic hydrocarbons (PAHs). As peloid aging progressed, the sample was richer in methyl-branched alkanes, carboxylic acids, their methyl esters, and thermodynamically more stable hopanes and steranes. The presence of elements with toxicological relevance during maturation was reduced below the limits prescribed in most of the directives for cosmetic products. It specifically refers to: As, Ni and Se. A higher concentration of total sulfur in the mature peloid can be related to gypsum precipitation in the summer and/or more intensive microbial activity.",
publisher = "Elsevier",
journal = "Science of The Total Environment",
title = "Changes in hydrocarbons and elemental distribution in peloids during maturation processes (Sečovlje Salina Nature Park Slovenia)",
volume = "897",
pages = "165424",
doi = "10.1016/j.scitotenv.2023.165424"
}

Šajnović, A., Burazer, N., Veselinović, G., Stojadinović, S. M., Gajica, G., Trebše, P., Glavaš, N.,& Jovančićević, B.. (2023). Changes in hydrocarbons and elemental distribution in peloids during maturation processes (Sečovlje Salina Nature Park Slovenia). in Science of The Total Environment
Elsevier., 897, 165424.
https://doi.org/10.1016/j.scitotenv.2023.165424

Šajnović A, Burazer N, Veselinović G, Stojadinović SM, Gajica G, Trebše P, Glavaš N, Jovančićević B. Changes in hydrocarbons and elemental distribution in peloids during maturation processes (Sečovlje Salina Nature Park Slovenia). in Science of The Total Environment. 2023;897:165424.
doi:10.1016/j.scitotenv.2023.165424 .

Šajnović, Aleksandra, Burazer, Nikola, Veselinović, Gorica, Stojadinović, Sanja M., Gajica, G., Trebše, P., Glavaš, N., Jovančićević, Branimir, "Changes in hydrocarbons and elemental distribution in peloids during maturation processes (Sečovlje Salina Nature Park Slovenia)" in Science of The Total Environment, 897 (2023):165424,
https://doi.org/10.1016/j.scitotenv.2023.165424 . .

TY  - JOUR
AU  - Stefanović, Milica
AU  - Šajnović, Aleksandra
AU  - Kašanin-Grubin, Milica
AU  - Vergari, Francesca
AU  - Troiani, Francesco
AU  - Moreno-de-las-Heras, Mariano
AU  - Gallart, Francesc
AU  - Desloges, Joseph
AU  - Jovančićević, Branimir
PY  - 2023
UR  - http://cherry.chem.bg.ac.rs/handle/123456789/6279
AB  - The aim of this study is to investigate the influence of weathering processes on the distribution of n-alkanes in unweathered and weathered samples of badland material. Organic matter (OM) of both the weathered and unweathered zones in badland environments is derived from the same sources such any differences between the n-alkane pattern of the two zones can be attributed to the impact of weathering processes under different climate conditions. Organic geochemical and mineralogical characterizations were employed to investigate twenty-one samples from weathered badland environments in Italy, Spain, and Canada that originally derive from marine, distal alluvial, and fluvial depositional settings, respectively. According to the distribution of n-alkanes and diterpanes, unweathered samples from Italy have an original mixed aquatic-terrestrial origin of OM, with a variable (low to moderate) contribution of terrestrial plants as precursors, while unweathered samples from Spain predominantly contain OM originating from submerged/floating macrophytes deposited under reducing conditions. Unweathered samples from Canada predominantly consist of terrigenous OM. Intensity of changes in n-alkanes distribution when subjected to weathering depends on the type of precursor biomass and quantity of smectite. Predominantly terrigenous OM under semi-arid conditions shows the highest affinity for adsorption is in contact with smectite surfaces. Mid- and long-chain odd n-alkanes have a tendency to build colloidal particles with polar organic compounds such as fatty acids by strong binding and thus their preservation from degradation is possible.
PB  - Elsevier
T2  - CATENA
T1  - Impact of weathering processes on n-alkane pattern in badlands
VL  - 231
SP  - 107352
DO  - 10.1016/j.catena.2023.107352
ER  - 

@article{
author = "Stefanović, Milica and Šajnović, Aleksandra and Kašanin-Grubin, Milica and Vergari, Francesca and Troiani, Francesco and Moreno-de-las-Heras, Mariano and Gallart, Francesc and Desloges, Joseph and Jovančićević, Branimir",
year = "2023",
abstract = "The aim of this study is to investigate the influence of weathering processes on the distribution of n-alkanes in unweathered and weathered samples of badland material. Organic matter (OM) of both the weathered and unweathered zones in badland environments is derived from the same sources such any differences between the n-alkane pattern of the two zones can be attributed to the impact of weathering processes under different climate conditions. Organic geochemical and mineralogical characterizations were employed to investigate twenty-one samples from weathered badland environments in Italy, Spain, and Canada that originally derive from marine, distal alluvial, and fluvial depositional settings, respectively. According to the distribution of n-alkanes and diterpanes, unweathered samples from Italy have an original mixed aquatic-terrestrial origin of OM, with a variable (low to moderate) contribution of terrestrial plants as precursors, while unweathered samples from Spain predominantly contain OM originating from submerged/floating macrophytes deposited under reducing conditions. Unweathered samples from Canada predominantly consist of terrigenous OM. Intensity of changes in n-alkanes distribution when subjected to weathering depends on the type of precursor biomass and quantity of smectite. Predominantly terrigenous OM under semi-arid conditions shows the highest affinity for adsorption is in contact with smectite surfaces. Mid- and long-chain odd n-alkanes have a tendency to build colloidal particles with polar organic compounds such as fatty acids by strong binding and thus their preservation from degradation is possible.",
publisher = "Elsevier",
journal = "CATENA",
title = "Impact of weathering processes on n-alkane pattern in badlands",
volume = "231",
pages = "107352",
doi = "10.1016/j.catena.2023.107352"
}

Stefanović, M., Šajnović, A., Kašanin-Grubin, M., Vergari, F., Troiani, F., Moreno-de-las-Heras, M., Gallart, F., Desloges, J.,& Jovančićević, B.. (2023). Impact of weathering processes on n-alkane pattern in badlands. in CATENA
Elsevier., 231, 107352.
https://doi.org/10.1016/j.catena.2023.107352

Stefanović M, Šajnović A, Kašanin-Grubin M, Vergari F, Troiani F, Moreno-de-las-Heras M, Gallart F, Desloges J, Jovančićević B. Impact of weathering processes on n-alkane pattern in badlands. in CATENA. 2023;231:107352.
doi:10.1016/j.catena.2023.107352 .

Stefanović, Milica, Šajnović, Aleksandra, Kašanin-Grubin, Milica, Vergari, Francesca, Troiani, Francesco, Moreno-de-las-Heras, Mariano, Gallart, Francesc, Desloges, Joseph, Jovančićević, Branimir, "Impact of weathering processes on n-alkane pattern in badlands" in CATENA, 231 (2023):107352,
https://doi.org/10.1016/j.catena.2023.107352 . .

TY  - JOUR
AU  - Spahić, Darko
AU  - Šajnović, Aleksandra
AU  - Burazer, Nikola
AU  - Radisavljević, Marija
AU  - Jovančićević, Branimir
PY  - 2023
UR  - http://cherry.chem.bg.ac.rs/handle/123456789/6260
AB  - With the objective to quantify the Neogene extensional geodynamic drivers of the Peri Pannonian Realm s.l., a series of 1D basin models were carried out by integrating the available geological and geochemical data extracted from the landlocked Toplica Basin (central-southern Serbia; Serbo-Macedonian Unit). The modeling was conducted on four wells located immediately south of Jastrebac Mt., in the area of the Toplica Basin. The investigated southernmost point of the Peri Pannonian Ream s.l. (areas surrounding the basin, to the south of rivers Danube and Sava) underwent intense tectonically-driven subsidence episodes, which lasted from the Lower Miocene up to the Pliocene. The restored Neogene burial history (subsidence rates), paleotemperature, and calibrated paleo-heat fluxes (or changes in the ancient crustal or basal heat flow) indicated a two-staged crustal stretching of the wider Toplica area. The combined tectonic, i.e., thermal subsidence, resulted in a very high sedimentation rate, having an average ca. 300–400 m/Ma (Čučale unit). The intense tectonically-driven subsidence is consistent with the involvement of extensional processes, affecting the crustal and lithospheric layers of the retreating Adria/Dinarides, amplified by a distant Carpathian rollback stage. The regional extension led to the asymmetric opening and the formation of the Toplica Lower Miocene mesosaline to the freshwater lacustrine system. Higher participation of mixed microbiologically reworked/terrestrial organic matter incorporated in oil-prone Type II kerogen mainly characterized the investigated lacustrine sedimentary sequence. The latest Oligocene–earliest Neogene subsidence onset was characterized by elevated temperatures, affecting the early development of the oil window (ca. at 16 Ma). The 1D models also showed that the Lower Čučale unit achieved ca. 50% transformation ratio for the Type II organic matter. The two intra-Neogene extensional episodes suggested the existence of the Early Neogene “syn-rift” stage, followed by a thermal sagging. The Neogene continuous thinning of the overriding Serbo-Macedonian continental crust contributed to the “negative inversion” of the former pre-Neogene nappes. Therefore, Neogene tectonic reactivation induced contemporaneous subsidence, further allowing the extensional rise of the Jastrebac core complex.
PB  - Elsevier
T2  - Geoenergy Science and Engineering
T1  - Neogene subsidence rates of the southern Peri Pannonian realm (1D basin modeling): Constraints on the extensional geodynamic drivers of the asymmetric Toplica basin (central-southern Serbia)
VL  - 226
SP  - 211714
DO  - 10.1016/j.geoen.2023.211714
ER  - 

@article{
author = "Spahić, Darko and Šajnović, Aleksandra and Burazer, Nikola and Radisavljević, Marija and Jovančićević, Branimir",
year = "2023",
abstract = "With the objective to quantify the Neogene extensional geodynamic drivers of the Peri Pannonian Realm s.l., a series of 1D basin models were carried out by integrating the available geological and geochemical data extracted from the landlocked Toplica Basin (central-southern Serbia; Serbo-Macedonian Unit). The modeling was conducted on four wells located immediately south of Jastrebac Mt., in the area of the Toplica Basin. The investigated southernmost point of the Peri Pannonian Ream s.l. (areas surrounding the basin, to the south of rivers Danube and Sava) underwent intense tectonically-driven subsidence episodes, which lasted from the Lower Miocene up to the Pliocene. The restored Neogene burial history (subsidence rates), paleotemperature, and calibrated paleo-heat fluxes (or changes in the ancient crustal or basal heat flow) indicated a two-staged crustal stretching of the wider Toplica area. The combined tectonic, i.e., thermal subsidence, resulted in a very high sedimentation rate, having an average ca. 300–400 m/Ma (Čučale unit). The intense tectonically-driven subsidence is consistent with the involvement of extensional processes, affecting the crustal and lithospheric layers of the retreating Adria/Dinarides, amplified by a distant Carpathian rollback stage. The regional extension led to the asymmetric opening and the formation of the Toplica Lower Miocene mesosaline to the freshwater lacustrine system. Higher participation of mixed microbiologically reworked/terrestrial organic matter incorporated in oil-prone Type II kerogen mainly characterized the investigated lacustrine sedimentary sequence. The latest Oligocene–earliest Neogene subsidence onset was characterized by elevated temperatures, affecting the early development of the oil window (ca. at 16 Ma). The 1D models also showed that the Lower Čučale unit achieved ca. 50% transformation ratio for the Type II organic matter. The two intra-Neogene extensional episodes suggested the existence of the Early Neogene “syn-rift” stage, followed by a thermal sagging. The Neogene continuous thinning of the overriding Serbo-Macedonian continental crust contributed to the “negative inversion” of the former pre-Neogene nappes. Therefore, Neogene tectonic reactivation induced contemporaneous subsidence, further allowing the extensional rise of the Jastrebac core complex.",
publisher = "Elsevier",
journal = "Geoenergy Science and Engineering",
title = "Neogene subsidence rates of the southern Peri Pannonian realm (1D basin modeling): Constraints on the extensional geodynamic drivers of the asymmetric Toplica basin (central-southern Serbia)",
volume = "226",
pages = "211714",
doi = "10.1016/j.geoen.2023.211714"
}

Spahić, D., Šajnović, A., Burazer, N., Radisavljević, M.,& Jovančićević, B.. (2023). Neogene subsidence rates of the southern Peri Pannonian realm (1D basin modeling): Constraints on the extensional geodynamic drivers of the asymmetric Toplica basin (central-southern Serbia). in Geoenergy Science and Engineering
Elsevier., 226, 211714.
https://doi.org/10.1016/j.geoen.2023.211714

Spahić D, Šajnović A, Burazer N, Radisavljević M, Jovančićević B. Neogene subsidence rates of the southern Peri Pannonian realm (1D basin modeling): Constraints on the extensional geodynamic drivers of the asymmetric Toplica basin (central-southern Serbia). in Geoenergy Science and Engineering. 2023;226:211714.
doi:10.1016/j.geoen.2023.211714 .

Spahić, Darko, Šajnović, Aleksandra, Burazer, Nikola, Radisavljević, Marija, Jovančićević, Branimir, "Neogene subsidence rates of the southern Peri Pannonian realm (1D basin modeling): Constraints on the extensional geodynamic drivers of the asymmetric Toplica basin (central-southern Serbia)" in Geoenergy Science and Engineering, 226 (2023):211714,
https://doi.org/10.1016/j.geoen.2023.211714 . .

TY  - JOUR
AU  - Veselinović, Gorica
AU  - Tripković, Boban
AU  - Antić, Nevena
AU  - Šajnović, Aleksandra
AU  - Kašanin-Grubin, Milica
AU  - Tosti, Tomislav
AU  - Penezić, Kristina
PY  - 2022
UR  - http://cherry.chem.bg.ac.rs/handle/123456789/5321
AB  - This study aims to determine the palaeoenvironmental characteristics and activity patterns of Obrovac-type archaeological sites in Western Serbia, dated to the Late Neolithic/Early Eneolithic period, ∼5th millennium BC. These mound-like sites, enclosed by a wide ditch, that are not known in other parts of the central Balkan area, have long intrigued archaeologists investigating their origin and function over the last few decades.In this study, for the first time, organic-geochemical analysis of paleosol samples from the Obrovac-type sites was applied with the aim of palaeoenvironmental reconstruction. Additionally, organic carbon content and anion analysis of 58 subsoil samples from these settlements were performed to determine the use of space and activity zones.The analysis of biomarkers from selected sites suggests significant plant biodiversity in the Mačva region during the Late Neolithic/Early Eneolithic. Distribution of n-alkanes with the maximum at n-C25 and predominance of C30 hop-22(29)-ene among hopanoids in samples from Obrovac type-sites indisputably indicates that macrophytes are a dominant source of organic matter, implying a marshy and floodplain depositional environment. On the other side, a strong signal of long-chain n-alkanes indicates the input of terrestrial plants into the precursor biomass, confirming that this environment was habitable for the first settlers in this region. Anion-based analysis delineates certain activity zones, demonstrating that Obrovac type-sites manifest rather complex spatial behavior despite their relatively small size and available space.
PB  - Elsevier
T2  - Quaternary International
T2  - Quaternary International
T1  - Reconstruction of palaeoenvironment and ancient human activities at Obrovac-type settlements (Serbia) using a geochemical approach
VL  - 610
SP  - 122
EP  - 132
DO  - 10.1016/j.quaint.2021.09.001
ER  - 

@article{
author = "Veselinović, Gorica and Tripković, Boban and Antić, Nevena and Šajnović, Aleksandra and Kašanin-Grubin, Milica and Tosti, Tomislav and Penezić, Kristina",
year = "2022",
abstract = "This study aims to determine the palaeoenvironmental characteristics and activity patterns of Obrovac-type archaeological sites in Western Serbia, dated to the Late Neolithic/Early Eneolithic period, ∼5th millennium BC. These mound-like sites, enclosed by a wide ditch, that are not known in other parts of the central Balkan area, have long intrigued archaeologists investigating their origin and function over the last few decades.In this study, for the first time, organic-geochemical analysis of paleosol samples from the Obrovac-type sites was applied with the aim of palaeoenvironmental reconstruction. Additionally, organic carbon content and anion analysis of 58 subsoil samples from these settlements were performed to determine the use of space and activity zones.The analysis of biomarkers from selected sites suggests significant plant biodiversity in the Mačva region during the Late Neolithic/Early Eneolithic. Distribution of n-alkanes with the maximum at n-C25 and predominance of C30 hop-22(29)-ene among hopanoids in samples from Obrovac type-sites indisputably indicates that macrophytes are a dominant source of organic matter, implying a marshy and floodplain depositional environment. On the other side, a strong signal of long-chain n-alkanes indicates the input of terrestrial plants into the precursor biomass, confirming that this environment was habitable for the first settlers in this region. Anion-based analysis delineates certain activity zones, demonstrating that Obrovac type-sites manifest rather complex spatial behavior despite their relatively small size and available space.",
publisher = "Elsevier",
journal = "Quaternary International, Quaternary International",
title = "Reconstruction of palaeoenvironment and ancient human activities at Obrovac-type settlements (Serbia) using a geochemical approach",
volume = "610",
pages = "122-132",
doi = "10.1016/j.quaint.2021.09.001"
}

Veselinović, G., Tripković, B., Antić, N., Šajnović, A., Kašanin-Grubin, M., Tosti, T.,& Penezić, K.. (2022). Reconstruction of palaeoenvironment and ancient human activities at Obrovac-type settlements (Serbia) using a geochemical approach. in Quaternary International
Elsevier., 610, 122-132.
https://doi.org/10.1016/j.quaint.2021.09.001

Veselinović G, Tripković B, Antić N, Šajnović A, Kašanin-Grubin M, Tosti T, Penezić K. Reconstruction of palaeoenvironment and ancient human activities at Obrovac-type settlements (Serbia) using a geochemical approach. in Quaternary International. 2022;610:122-132.
doi:10.1016/j.quaint.2021.09.001 .

Veselinović, Gorica, Tripković, Boban, Antić, Nevena, Šajnović, Aleksandra, Kašanin-Grubin, Milica, Tosti, Tomislav, Penezić, Kristina, "Reconstruction of palaeoenvironment and ancient human activities at Obrovac-type settlements (Serbia) using a geochemical approach" in Quaternary International, 610 (2022):122-132,
https://doi.org/10.1016/j.quaint.2021.09.001 . .

TY  - JOUR
AU  - Gajica, Gordana
AU  - Šajnović, Aleksandra
AU  - Stojanović, Ksenija A.
AU  - Schwarzbauer, Jan
AU  - Kostić, Aleksandar
AU  - Jovančićević, Branimir
PY  - 2022
UR  - http://cherry.chem.bg.ac.rs/handle/123456789/4846
AB  - The molecular and isotopic composition of biomarkers in initial bitumen isolated from immature (0.41% Rr) oil shale samples (Aleksinac deposit) and liquid products obtained by pyrolysis in open (OS) and closed (CS) systems are studied. The influence of pyrolysis type and variations of kerogen type on biomarkers composition and their isotopic signatures in liquid products is determined. The applicability of pyrolysis type, numerous biomarkers and carbon isotopic compositions (δ13C) of n-alkanes in liquid pyrolysates is established. Pyrolysis experiments were performed on two selected samples that showed high content of total organic carbon and hydrocarbon generation potential, but also certain variations in sources/depositional environment of organic matter (type I and mixed type I/II kerogen) within previous research of the oil shales sample set. The biomarker signatures were evaluated using gas chromatography-mass spectrometry (GC-MS) and δ13C of individual n-alkanes in bitumen and liquid pyrolysates. The molecular composition of liquid pyrolysates from the OS is very similar to those in initial bitumen, independently on kerogen type, confirming algal origin of organic matter (OM) deposited in lacustrine environment, even more apparently than results of initial bitumen. Therefore, OS can be useful for assessment of source and depositional environment of OM. Pyrolysis in the CS caused more intense thermal alterations, therefore the source fingerprints sometimes notably disappear. The liquid pyrolysates from the CS have the distributions of biomarkers similar to those in crude oils. The biomarker maturity parameters showed slightly higher values in the CS pyrolysate of mixed type I/II kerogen in relation to type I kerogen. δ13C of n-alkanes in liquid pyrolysates from the OS are isotopically lighter in comparison to bitumen, independently on kerogen type. Oppositely, in liquid pyrolysates from the CS, they become heavier than in bitumen, indicating the thermal influence on δ13C signatures, with more pronounced difference for type I kerogen.
PB  - Elsevier
T2  - Marine and Petroleum Geology
T1  - A comparative study of the molecular and isotopic composition of biomarkers in immature oil shale (Aleksinac deposit, Serbia) and its liquid pyrolysis products (open and closed systems)
VL  - 136
SP  - 105383
DO  - 10.1016/j.marpetgeo.2021.105383
ER  - 

@article{
author = "Gajica, Gordana and Šajnović, Aleksandra and Stojanović, Ksenija A. and Schwarzbauer, Jan and Kostić, Aleksandar and Jovančićević, Branimir",
year = "2022",
abstract = "The molecular and isotopic composition of biomarkers in initial bitumen isolated from immature (0.41% Rr) oil shale samples (Aleksinac deposit) and liquid products obtained by pyrolysis in open (OS) and closed (CS) systems are studied. The influence of pyrolysis type and variations of kerogen type on biomarkers composition and their isotopic signatures in liquid products is determined. The applicability of pyrolysis type, numerous biomarkers and carbon isotopic compositions (δ13C) of n-alkanes in liquid pyrolysates is established. Pyrolysis experiments were performed on two selected samples that showed high content of total organic carbon and hydrocarbon generation potential, but also certain variations in sources/depositional environment of organic matter (type I and mixed type I/II kerogen) within previous research of the oil shales sample set. The biomarker signatures were evaluated using gas chromatography-mass spectrometry (GC-MS) and δ13C of individual n-alkanes in bitumen and liquid pyrolysates. The molecular composition of liquid pyrolysates from the OS is very similar to those in initial bitumen, independently on kerogen type, confirming algal origin of organic matter (OM) deposited in lacustrine environment, even more apparently than results of initial bitumen. Therefore, OS can be useful for assessment of source and depositional environment of OM. Pyrolysis in the CS caused more intense thermal alterations, therefore the source fingerprints sometimes notably disappear. The liquid pyrolysates from the CS have the distributions of biomarkers similar to those in crude oils. The biomarker maturity parameters showed slightly higher values in the CS pyrolysate of mixed type I/II kerogen in relation to type I kerogen. δ13C of n-alkanes in liquid pyrolysates from the OS are isotopically lighter in comparison to bitumen, independently on kerogen type. Oppositely, in liquid pyrolysates from the CS, they become heavier than in bitumen, indicating the thermal influence on δ13C signatures, with more pronounced difference for type I kerogen.",
publisher = "Elsevier",
journal = "Marine and Petroleum Geology",
title = "A comparative study of the molecular and isotopic composition of biomarkers in immature oil shale (Aleksinac deposit, Serbia) and its liquid pyrolysis products (open and closed systems)",
volume = "136",
pages = "105383",
doi = "10.1016/j.marpetgeo.2021.105383"
}

Gajica, G., Šajnović, A., Stojanović, K. A., Schwarzbauer, J., Kostić, A.,& Jovančićević, B.. (2022). A comparative study of the molecular and isotopic composition of biomarkers in immature oil shale (Aleksinac deposit, Serbia) and its liquid pyrolysis products (open and closed systems). in Marine and Petroleum Geology
Elsevier., 136, 105383.
https://doi.org/10.1016/j.marpetgeo.2021.105383

Gajica G, Šajnović A, Stojanović KA, Schwarzbauer J, Kostić A, Jovančićević B. A comparative study of the molecular and isotopic composition of biomarkers in immature oil shale (Aleksinac deposit, Serbia) and its liquid pyrolysis products (open and closed systems). in Marine and Petroleum Geology. 2022;136:105383.
doi:10.1016/j.marpetgeo.2021.105383 .

Gajica, Gordana, Šajnović, Aleksandra, Stojanović, Ksenija A., Schwarzbauer, Jan, Kostić, Aleksandar, Jovančićević, Branimir, "A comparative study of the molecular and isotopic composition of biomarkers in immature oil shale (Aleksinac deposit, Serbia) and its liquid pyrolysis products (open and closed systems)" in Marine and Petroleum Geology, 136 (2022):105383,
https://doi.org/10.1016/j.marpetgeo.2021.105383 . .

TY  - JOUR
AU  - Gajica, Gordana
AU  - Šajnović, Aleksandra
AU  - Stojanović, Ksenija A.
AU  - Schwarzbauer, Jan
AU  - Kostić, Aleksandar
AU  - Jovančićević, Branimir
PY  - 2022
UR  - http://cherry.chem.bg.ac.rs/handle/123456789/4847
AB  - The molecular and isotopic composition of biomarkers in initial bitumen isolated from immature (0.41% Rr) oil shale samples (Aleksinac deposit) and liquid products obtained by pyrolysis in open (OS) and closed (CS) systems are studied. The influence of pyrolysis type and variations of kerogen type on biomarkers composition and their isotopic signatures in liquid products is determined. The applicability of pyrolysis type, numerous biomarkers and carbon isotopic compositions (δ13C) of n-alkanes in liquid pyrolysates is established. Pyrolysis experiments were performed on two selected samples that showed high content of total organic carbon and hydrocarbon generation potential, but also certain variations in sources/depositional environment of organic matter (type I and mixed type I/II kerogen) within previous research of the oil shales sample set. The biomarker signatures were evaluated using gas chromatography-mass spectrometry (GC-MS) and δ13C of individual n-alkanes in bitumen and liquid pyrolysates. The molecular composition of liquid pyrolysates from the OS is very similar to those in initial bitumen, independently on kerogen type, confirming algal origin of organic matter (OM) deposited in lacustrine environment, even more apparently than results of initial bitumen. Therefore, OS can be useful for assessment of source and depositional environment of OM. Pyrolysis in the CS caused more intense thermal alterations, therefore the source fingerprints sometimes notably disappear. The liquid pyrolysates from the CS have the distributions of biomarkers similar to those in crude oils. The biomarker maturity parameters showed slightly higher values in the CS pyrolysate of mixed type I/II kerogen in relation to type I kerogen. δ13C of n-alkanes in liquid pyrolysates from the OS are isotopically lighter in comparison to bitumen, independently on kerogen type. Oppositely, in liquid pyrolysates from the CS, they become heavier than in bitumen, indicating the thermal influence on δ13C signatures, with more pronounced difference for type I kerogen.
PB  - Elsevier
T2  - Marine and Petroleum Geology
T1  - A comparative study of the molecular and isotopic composition of biomarkers in immature oil shale (Aleksinac deposit, Serbia) and its liquid pyrolysis products (open and closed systems)
VL  - 136
SP  - 105383
DO  - 10.1016/j.marpetgeo.2021.105383
ER  - 

@article{
author = "Gajica, Gordana and Šajnović, Aleksandra and Stojanović, Ksenija A. and Schwarzbauer, Jan and Kostić, Aleksandar and Jovančićević, Branimir",
year = "2022",
abstract = "The molecular and isotopic composition of biomarkers in initial bitumen isolated from immature (0.41% Rr) oil shale samples (Aleksinac deposit) and liquid products obtained by pyrolysis in open (OS) and closed (CS) systems are studied. The influence of pyrolysis type and variations of kerogen type on biomarkers composition and their isotopic signatures in liquid products is determined. The applicability of pyrolysis type, numerous biomarkers and carbon isotopic compositions (δ13C) of n-alkanes in liquid pyrolysates is established. Pyrolysis experiments were performed on two selected samples that showed high content of total organic carbon and hydrocarbon generation potential, but also certain variations in sources/depositional environment of organic matter (type I and mixed type I/II kerogen) within previous research of the oil shales sample set. The biomarker signatures were evaluated using gas chromatography-mass spectrometry (GC-MS) and δ13C of individual n-alkanes in bitumen and liquid pyrolysates. The molecular composition of liquid pyrolysates from the OS is very similar to those in initial bitumen, independently on kerogen type, confirming algal origin of organic matter (OM) deposited in lacustrine environment, even more apparently than results of initial bitumen. Therefore, OS can be useful for assessment of source and depositional environment of OM. Pyrolysis in the CS caused more intense thermal alterations, therefore the source fingerprints sometimes notably disappear. The liquid pyrolysates from the CS have the distributions of biomarkers similar to those in crude oils. The biomarker maturity parameters showed slightly higher values in the CS pyrolysate of mixed type I/II kerogen in relation to type I kerogen. δ13C of n-alkanes in liquid pyrolysates from the OS are isotopically lighter in comparison to bitumen, independently on kerogen type. Oppositely, in liquid pyrolysates from the CS, they become heavier than in bitumen, indicating the thermal influence on δ13C signatures, with more pronounced difference for type I kerogen.",
publisher = "Elsevier",
journal = "Marine and Petroleum Geology",
title = "A comparative study of the molecular and isotopic composition of biomarkers in immature oil shale (Aleksinac deposit, Serbia) and its liquid pyrolysis products (open and closed systems)",
volume = "136",
pages = "105383",
doi = "10.1016/j.marpetgeo.2021.105383"
}

Gajica, G., Šajnović, A., Stojanović, K. A., Schwarzbauer, J., Kostić, A.,& Jovančićević, B.. (2022). A comparative study of the molecular and isotopic composition of biomarkers in immature oil shale (Aleksinac deposit, Serbia) and its liquid pyrolysis products (open and closed systems). in Marine and Petroleum Geology
Elsevier., 136, 105383.
https://doi.org/10.1016/j.marpetgeo.2021.105383

Gajica G, Šajnović A, Stojanović KA, Schwarzbauer J, Kostić A, Jovančićević B. A comparative study of the molecular and isotopic composition of biomarkers in immature oil shale (Aleksinac deposit, Serbia) and its liquid pyrolysis products (open and closed systems). in Marine and Petroleum Geology. 2022;136:105383.
doi:10.1016/j.marpetgeo.2021.105383 .

Gajica, Gordana, Šajnović, Aleksandra, Stojanović, Ksenija A., Schwarzbauer, Jan, Kostić, Aleksandar, Jovančićević, Branimir, "A comparative study of the molecular and isotopic composition of biomarkers in immature oil shale (Aleksinac deposit, Serbia) and its liquid pyrolysis products (open and closed systems)" in Marine and Petroleum Geology, 136 (2022):105383,
https://doi.org/10.1016/j.marpetgeo.2021.105383 . .

TY  - JOUR
AU  - Stojadinović, Sanja M.
AU  - Šajnović, Aleksandra
AU  - Kašanin-Grubin, Milica
AU  - Gajica, Gordana
AU  - Veselinović, Gorica
AU  - Štrbac, Snežana
AU  - Jovančićević, Branimir
PY  - 2022
UR  - http://cherry.chem.bg.ac.rs/handle/123456789/5018
AB  - Purpose The Great War Island (GWI) is a landform of exceptional features and a protected area located in the center of
Belgrade at the Sava and Danube River’s confuence. The position of GWI causes a large number of possible hydrocarbons inputs that infuence the quality of both river waters and sediments. The main objective of this research is to assess
the distribution and source of hydrocarbons in sediments deposited at the GWI depending on the river’s fow regimes and
depositional environment.
Material and methods Sediment samples were collected from 16 sites (11 sites along the GWI’s coast, 4 sites from the
inner of the Island, and 1 specifc wetland site). The grain size was determined using a standard wet sieving procedure. The
extractable organic matter (OM) was quantifed after Soxhlet extraction, and aliphatic and aromatic fractions were isolated
by column chromatography. n-Alkanes, diterpanes, terpanes, steranes, and 16 PAHs are analyzed by gas chromatographymass spectrometry.
Results and discussion Sand fraction predominates in coastal samples, and clay size fraction in the samples from the inner
island environment. The predominance of odd higher n-alkanes indicates the terrestrial origin of OM, while the distribution
of lower n-alkanes indicates a certain proportion of algae, bacteria, and/or high maturity of OM. The presence of oil-type
pollutants is confrmed by thermodynamically stable biomarker isomers and/or the presence of unresolved complex mixture
(UCM). Inner island samples are characterized by the largest amount of Corg (up 6%), indicating high bioproductivity and
good preservation of OM. Samples from wetland environment are distinguished by the domination of pimaranes and phyllocladanes among saturated hydrocarbons.
Conclusions This study revealed that sediments of the GWI mainly contain native OM with a certain anthropogenic input.
The native OM predominately comes from higher terrestrial plants (Salix alba, Populus nigra, Fraxinus viridis, Taxodium
distichum Rich.), followed by various types of grasses, macrophytes (Salvinia natans, Nymphaea alba), bacteria, algae, and
phytoplankton. Anthropogenic OM originates from petroleum, but also combustion products arrived by deposition from
the air and runof.
PB  - SpringerLink
T2  - Journal of Soils and Sediments
T1  - Characterization of the organic matter in sediments of the Great War Island (Belgrade, Serbia)
VL  - 22
IS  - 2
SP  - 640
EP  - 655
DO  - 10.1007/s11368-021-03103-w
ER  - 

@article{
author = "Stojadinović, Sanja M. and Šajnović, Aleksandra and Kašanin-Grubin, Milica and Gajica, Gordana and Veselinović, Gorica and Štrbac, Snežana and Jovančićević, Branimir",
year = "2022",
abstract = "Purpose The Great War Island (GWI) is a landform of exceptional features and a protected area located in the center of
Belgrade at the Sava and Danube River’s confuence. The position of GWI causes a large number of possible hydrocarbons inputs that infuence the quality of both river waters and sediments. The main objective of this research is to assess
the distribution and source of hydrocarbons in sediments deposited at the GWI depending on the river’s fow regimes and
depositional environment.
Material and methods Sediment samples were collected from 16 sites (11 sites along the GWI’s coast, 4 sites from the
inner of the Island, and 1 specifc wetland site). The grain size was determined using a standard wet sieving procedure. The
extractable organic matter (OM) was quantifed after Soxhlet extraction, and aliphatic and aromatic fractions were isolated
by column chromatography. n-Alkanes, diterpanes, terpanes, steranes, and 16 PAHs are analyzed by gas chromatographymass spectrometry.
Results and discussion Sand fraction predominates in coastal samples, and clay size fraction in the samples from the inner
island environment. The predominance of odd higher n-alkanes indicates the terrestrial origin of OM, while the distribution
of lower n-alkanes indicates a certain proportion of algae, bacteria, and/or high maturity of OM. The presence of oil-type
pollutants is confrmed by thermodynamically stable biomarker isomers and/or the presence of unresolved complex mixture
(UCM). Inner island samples are characterized by the largest amount of Corg (up 6%), indicating high bioproductivity and
good preservation of OM. Samples from wetland environment are distinguished by the domination of pimaranes and phyllocladanes among saturated hydrocarbons.
Conclusions This study revealed that sediments of the GWI mainly contain native OM with a certain anthropogenic input.
The native OM predominately comes from higher terrestrial plants (Salix alba, Populus nigra, Fraxinus viridis, Taxodium
distichum Rich.), followed by various types of grasses, macrophytes (Salvinia natans, Nymphaea alba), bacteria, algae, and
phytoplankton. Anthropogenic OM originates from petroleum, but also combustion products arrived by deposition from
the air and runof.",
publisher = "SpringerLink",
journal = "Journal of Soils and Sediments",
title = "Characterization of the organic matter in sediments of the Great War Island (Belgrade, Serbia)",
volume = "22",
number = "2",
pages = "640-655",
doi = "10.1007/s11368-021-03103-w"
}

Stojadinović, S. M., Šajnović, A., Kašanin-Grubin, M., Gajica, G., Veselinović, G., Štrbac, S.,& Jovančićević, B.. (2022). Characterization of the organic matter in sediments of the Great War Island (Belgrade, Serbia). in Journal of Soils and Sediments
SpringerLink., 22(2), 640-655.
https://doi.org/10.1007/s11368-021-03103-w

Stojadinović SM, Šajnović A, Kašanin-Grubin M, Gajica G, Veselinović G, Štrbac S, Jovančićević B. Characterization of the organic matter in sediments of the Great War Island (Belgrade, Serbia). in Journal of Soils and Sediments. 2022;22(2):640-655.
doi:10.1007/s11368-021-03103-w .

Stojadinović, Sanja M., Šajnović, Aleksandra, Kašanin-Grubin, Milica, Gajica, Gordana, Veselinović, Gorica, Štrbac, Snežana, Jovančićević, Branimir, "Characterization of the organic matter in sediments of the Great War Island (Belgrade, Serbia)" in Journal of Soils and Sediments, 22, no. 2 (2022):640-655,
https://doi.org/10.1007/s11368-021-03103-w . .

TY  - JOUR
AU  - Stojadinović, Sanja M.
AU  - Šajnović, Aleksandra
AU  - Kašanin-Grubin, Milica
AU  - Gajica, Gordana
AU  - Veselinović, Gorica
AU  - Štrbac, Snežana
AU  - Jovančićević, Branimir
PY  - 2022
UR  - http://cherry.chem.bg.ac.rs/handle/123456789/5079
AB  - Abstract
Purpose The Great War Island (GWI) is a landform of exceptional features and a protected area located in the center of
Belgrade at the Sava and Danube River’s confluence. The position of GWI causes a large number of possible hydrocar-
bons inputs that influence the quality of both river waters and sediments. The main objective of this research is to assess
the distribution and source of hydrocarbons in sediments deposited at the GWI depending on the river’s flow regimes and
depositional environment.
Material and methods Sediment samples were collected from 16 sites (11 sites along the GWI’s coast, 4 sites from the
inner of the Island, and 1 specific wetland site). The grain size was determined using a standard wet sieving procedure. The
extractable organic matter (OM) was quantified after Soxhlet extraction, and aliphatic and aromatic fractions were isolated
by column chromatography. n-Alkanes, diterpanes, terpanes, steranes, and 16 PAHs are analyzed by gas chromatography-
mass spectrometry.
Results and discussion Sand fraction predominates in coastal samples, and clay size fraction in the samples from the inner
island environment. The predominance of odd higher n-alkanes indicates the terrestrial origin of OM, while the distribution
of lower n-alkanes indicates a certain proportion of algae, bacteria, and/or high maturity of OM. The presence of oil-type
pollutants is confirmed by thermodynamically stable biomarker isomers and/or the presence of unresolved complex mixture
(UCM). Inner island samples are characterized by the largest amount of Corg (up 6%), indicating high bioproductivity and
good preservation of OM. Samples from wetland environment are distinguished by the domination of pimaranes and phyl-
locladanes among saturated hydrocarbons.
Conclusions This study revealed that sediments of the GWI mainly contain native OM with a certain anthropogenic input.
The native OM predominately comes from higher terrestrial plants (Salix alba, Populus nigra, Fraxinus viridis, Taxodium
distichum Rich.), followed by various types of grasses, macrophytes (Salvinia natans, Nymphaea alba), bacteria, algae, and
phytoplankton. Anthropogenic OM originates from petroleum, but also combustion products arrived by deposition from
the air and runoff.
PB  - Springer
T2  - Journal of Soils and Sediments
T1  - Characterization of the organic matter in sediments of the Great War Island (Belgrade, Serbia)
VL  - 22
SP  - 640
EP  - 655
DO  - 10.1007/s11368-021-03103-w
ER  - 

@article{
author = "Stojadinović, Sanja M. and Šajnović, Aleksandra and Kašanin-Grubin, Milica and Gajica, Gordana and Veselinović, Gorica and Štrbac, Snežana and Jovančićević, Branimir",
year = "2022",
abstract = "Abstract
Purpose The Great War Island (GWI) is a landform of exceptional features and a protected area located in the center of
Belgrade at the Sava and Danube River’s confluence. The position of GWI causes a large number of possible hydrocar-
bons inputs that influence the quality of both river waters and sediments. The main objective of this research is to assess
the distribution and source of hydrocarbons in sediments deposited at the GWI depending on the river’s flow regimes and
depositional environment.
Material and methods Sediment samples were collected from 16 sites (11 sites along the GWI’s coast, 4 sites from the
inner of the Island, and 1 specific wetland site). The grain size was determined using a standard wet sieving procedure. The
extractable organic matter (OM) was quantified after Soxhlet extraction, and aliphatic and aromatic fractions were isolated
by column chromatography. n-Alkanes, diterpanes, terpanes, steranes, and 16 PAHs are analyzed by gas chromatography-
mass spectrometry.
Results and discussion Sand fraction predominates in coastal samples, and clay size fraction in the samples from the inner
island environment. The predominance of odd higher n-alkanes indicates the terrestrial origin of OM, while the distribution
of lower n-alkanes indicates a certain proportion of algae, bacteria, and/or high maturity of OM. The presence of oil-type
pollutants is confirmed by thermodynamically stable biomarker isomers and/or the presence of unresolved complex mixture
(UCM). Inner island samples are characterized by the largest amount of Corg (up 6%), indicating high bioproductivity and
good preservation of OM. Samples from wetland environment are distinguished by the domination of pimaranes and phyl-
locladanes among saturated hydrocarbons.
Conclusions This study revealed that sediments of the GWI mainly contain native OM with a certain anthropogenic input.
The native OM predominately comes from higher terrestrial plants (Salix alba, Populus nigra, Fraxinus viridis, Taxodium
distichum Rich.), followed by various types of grasses, macrophytes (Salvinia natans, Nymphaea alba), bacteria, algae, and
phytoplankton. Anthropogenic OM originates from petroleum, but also combustion products arrived by deposition from
the air and runoff.",
publisher = "Springer",
journal = "Journal of Soils and Sediments",
title = "Characterization of the organic matter in sediments of the Great War Island (Belgrade, Serbia)",
volume = "22",
pages = "640-655",
doi = "10.1007/s11368-021-03103-w"
}

Stojadinović, S. M., Šajnović, A., Kašanin-Grubin, M., Gajica, G., Veselinović, G., Štrbac, S.,& Jovančićević, B.. (2022). Characterization of the organic matter in sediments of the Great War Island (Belgrade, Serbia). in Journal of Soils and Sediments
Springer., 22, 640-655.
https://doi.org/10.1007/s11368-021-03103-w

Stojadinović SM, Šajnović A, Kašanin-Grubin M, Gajica G, Veselinović G, Štrbac S, Jovančićević B. Characterization of the organic matter in sediments of the Great War Island (Belgrade, Serbia). in Journal of Soils and Sediments. 2022;22:640-655.
doi:10.1007/s11368-021-03103-w .

Stojadinović, Sanja M., Šajnović, Aleksandra, Kašanin-Grubin, Milica, Gajica, Gordana, Veselinović, Gorica, Štrbac, Snežana, Jovančićević, Branimir, "Characterization of the organic matter in sediments of the Great War Island (Belgrade, Serbia)" in Journal of Soils and Sediments, 22 (2022):640-655,
https://doi.org/10.1007/s11368-021-03103-w . .

TY  - JOUR
AU  - Jovančićević, Branimir
AU  - Gajica, Gordana
AU  - Veselinović, Gordana
AU  - Kašanin-Grubin, Milica
AU  - Šolević-Knudsen, Tatjana
AU  - Štrbac, Snežana
AU  - Šajnović, Aleksandra
PY  - 2022
UR  - http://cherry.chem.bg.ac.rs/handle/123456789/5141
AB  - Biological markers (BMs) are organic compounds in oils in which a precursor is known, and during the transformation of organic matter these compounds undergo certain structural and stereochemical changes. Based on the established precursors of BMs, the origin of the examined oils can be estimated, and based on the intensity and the type of changes and also geological history. It includes defining the deposition medium, the degree of maturation, the length of the oil migration path, the degree of biodegradation. The most studied and applied BMs are normal alkanes, isoprenoid aliphatic alkanes pristane and phytane, and polycyclic alkanes of the sterane and terapane type. On the other hand, in the environmental chemistry, these compounds can significantly contribute to the identification of petroleum pollutants, as well as to the assessment of the migration mechanism and the intensity of biodegradation. This review paper first presents the results related to the application of BMs in the organic geochemical correlations of oil in the south-eastern part of the Pannonian Basin (I). The second part provides an overview of those researches in which the same BMs were used in the identification of oil pollutants and in monitoring their changes during the migration and the biodegradation in rivers and river sediments of Serbia (II).
PB  - Beograd : Srpsko hemijsko društvo
T2  - Journal of the Serbian Chemical Society
T1  - The use of biological markers in organic geochemical investigations of the origin and geological history of crude oils (I) and in the assessment of oil pollution of rivers and river sediments of Serbia (II)
VL  - 87
SP  - 7
EP  - 25
DO  - 10.2298/JSC210701072J
ER  - 

@article{
author = "Jovančićević, Branimir and Gajica, Gordana and Veselinović, Gordana and Kašanin-Grubin, Milica and Šolević-Knudsen, Tatjana and Štrbac, Snežana and Šajnović, Aleksandra",
year = "2022",
abstract = "Biological markers (BMs) are organic compounds in oils in which a precursor is known, and during the transformation of organic matter these compounds undergo certain structural and stereochemical changes. Based on the established precursors of BMs, the origin of the examined oils can be estimated, and based on the intensity and the type of changes and also geological history. It includes defining the deposition medium, the degree of maturation, the length of the oil migration path, the degree of biodegradation. The most studied and applied BMs are normal alkanes, isoprenoid aliphatic alkanes pristane and phytane, and polycyclic alkanes of the sterane and terapane type. On the other hand, in the environmental chemistry, these compounds can significantly contribute to the identification of petroleum pollutants, as well as to the assessment of the migration mechanism and the intensity of biodegradation. This review paper first presents the results related to the application of BMs in the organic geochemical correlations of oil in the south-eastern part of the Pannonian Basin (I). The second part provides an overview of those researches in which the same BMs were used in the identification of oil pollutants and in monitoring their changes during the migration and the biodegradation in rivers and river sediments of Serbia (II).",
publisher = "Beograd : Srpsko hemijsko društvo",
journal = "Journal of the Serbian Chemical Society",
title = "The use of biological markers in organic geochemical investigations of the origin and geological history of crude oils (I) and in the assessment of oil pollution of rivers and river sediments of Serbia (II)",
volume = "87",
pages = "7-25",
doi = "10.2298/JSC210701072J"
}

Jovančićević, B., Gajica, G., Veselinović, G., Kašanin-Grubin, M., Šolević-Knudsen, T., Štrbac, S.,& Šajnović, A.. (2022). The use of biological markers in organic geochemical investigations of the origin and geological history of crude oils (I) and in the assessment of oil pollution of rivers and river sediments of Serbia (II). in Journal of the Serbian Chemical Society
Beograd : Srpsko hemijsko društvo., 87, 7-25.
https://doi.org/10.2298/JSC210701072J

Jovančićević B, Gajica G, Veselinović G, Kašanin-Grubin M, Šolević-Knudsen T, Štrbac S, Šajnović A. The use of biological markers in organic geochemical investigations of the origin and geological history of crude oils (I) and in the assessment of oil pollution of rivers and river sediments of Serbia (II). in Journal of the Serbian Chemical Society. 2022;87:7-25.
doi:10.2298/JSC210701072J .

Jovančićević, Branimir, Gajica, Gordana, Veselinović, Gordana, Kašanin-Grubin, Milica, Šolević-Knudsen, Tatjana, Štrbac, Snežana, Šajnović, Aleksandra, "The use of biological markers in organic geochemical investigations of the origin and geological history of crude oils (I) and in the assessment of oil pollution of rivers and river sediments of Serbia (II)" in Journal of the Serbian Chemical Society, 87 (2022):7-25,
https://doi.org/10.2298/JSC210701072J . .

TY  - DATA
AU  - Jovančićević, Branimir
AU  - Gajica, Gordana
AU  - Veselinović, Gordana
AU  - Kašanin-Grubin, Milica
AU  - Šolević-Knudsen, Tatjana
AU  - Štrbac, Snežana
AU  - Šajnović, Aleksandra
PY  - 2022
UR  - http://cherry.chem.bg.ac.rs/handle/123456789/5142
PB  - Beograd : Srpsko hemijsko društvo
T2  - Journal of the Serbian Chemical Society
T1  - Supplementary information for the article: Jovančićević, B.; Gajica, G.; Veselinović, G.; Kašanin-Grubin, M.; Šolević Knudsen, T.; Štrbac, S.; Šajnović, A. The Use of Biological Markers in Organic Geochemical Investigations of the Origin and Geological History of Crude Oils (I) and in the Assessment of Oil Pollution of Rivers and River Sediments of Serbia (II). Journal of the Serbian Chemical Society, 2022.
UR  - https://hdl.handle.net/21.15107/rcub_cherry_5142
ER  - 

@misc{
author = "Jovančićević, Branimir and Gajica, Gordana and Veselinović, Gordana and Kašanin-Grubin, Milica and Šolević-Knudsen, Tatjana and Štrbac, Snežana and Šajnović, Aleksandra",
year = "2022",
publisher = "Beograd : Srpsko hemijsko društvo",
journal = "Journal of the Serbian Chemical Society",
title = "Supplementary information for the article: Jovančićević, B.; Gajica, G.; Veselinović, G.; Kašanin-Grubin, M.; Šolević Knudsen, T.; Štrbac, S.; Šajnović, A. The Use of Biological Markers in Organic Geochemical Investigations of the Origin and Geological History of Crude Oils (I) and in the Assessment of Oil Pollution of Rivers and River Sediments of Serbia (II). Journal of the Serbian Chemical Society, 2022.",
url = "https://hdl.handle.net/21.15107/rcub_cherry_5142"
}

Jovančićević, B., Gajica, G., Veselinović, G., Kašanin-Grubin, M., Šolević-Knudsen, T., Štrbac, S.,& Šajnović, A.. (2022). Supplementary information for the article: Jovančićević, B.; Gajica, G.; Veselinović, G.; Kašanin-Grubin, M.; Šolević Knudsen, T.; Štrbac, S.; Šajnović, A. The Use of Biological Markers in Organic Geochemical Investigations of the Origin and Geological History of Crude Oils (I) and in the Assessment of Oil Pollution of Rivers and River Sediments of Serbia (II). Journal of the Serbian Chemical Society, 2022.. in Journal of the Serbian Chemical Society
Beograd : Srpsko hemijsko društvo..
https://hdl.handle.net/21.15107/rcub_cherry_5142

Jovančićević B, Gajica G, Veselinović G, Kašanin-Grubin M, Šolević-Knudsen T, Štrbac S, Šajnović A. Supplementary information for the article: Jovančićević, B.; Gajica, G.; Veselinović, G.; Kašanin-Grubin, M.; Šolević Knudsen, T.; Štrbac, S.; Šajnović, A. The Use of Biological Markers in Organic Geochemical Investigations of the Origin and Geological History of Crude Oils (I) and in the Assessment of Oil Pollution of Rivers and River Sediments of Serbia (II). Journal of the Serbian Chemical Society, 2022.. in Journal of the Serbian Chemical Society. 2022;.
https://hdl.handle.net/21.15107/rcub_cherry_5142 .

Jovančićević, Branimir, Gajica, Gordana, Veselinović, Gordana, Kašanin-Grubin, Milica, Šolević-Knudsen, Tatjana, Štrbac, Snežana, Šajnović, Aleksandra, "Supplementary information for the article: Jovančićević, B.; Gajica, G.; Veselinović, G.; Kašanin-Grubin, M.; Šolević Knudsen, T.; Štrbac, S.; Šajnović, A. The Use of Biological Markers in Organic Geochemical Investigations of the Origin and Geological History of Crude Oils (I) and in the Assessment of Oil Pollution of Rivers and River Sediments of Serbia (II). Journal of the Serbian Chemical Society, 2022." in Journal of the Serbian Chemical Society (2022),
https://hdl.handle.net/21.15107/rcub_cherry_5142 .

TY  - JOUR
AU  - Burazer, Nikola
AU  - Šajnović, Aleksandra
AU  - Kašanin-Grubin, Milica
AU  - Gajica, Gordana
AU  - Orlić, Jovana
AU  - Radisavljević, Marija
AU  - Jovančićević, Branimir
PY  - 2021
UR  - http://cherry.chem.bg.ac.rs/handle/123456789/4814
AB  - The study investigates the influence of alluvial-lacustrine processes and paleoclimate variations on the distribution of terpenoids and unsubstituted Polycyclic Aromatic Hydrocarbons (PAHs). The XRF, ICP-MS, Rock-Eval, and organic geochemical analyses were employed to investigate thirty Lower and Middle Miocene sedimentary samples from the Prebreza and Čučale formations, collected from boreholes BL3 and BL5, situated in the central part of the Toplica Basin (Serbia). The development of the studied basin part was influenced by alluvial-lacustrine processes, which affected the type of organic matter (OM) and the paleoenvironment. Sandy silt and gravel layers in the profile of the BL3 borehole indicate the contribution of thicker clasts brought by rivers. In the BL5 borehole, there are fine-grained intrabasinal lacustrine sediments in the lower part, and swamp sediments in the upper part. The lowest total organic carbon (TOC) content is in alluvial sediments of BL3 and some lacustrine sediments of BL5. Based on Hydrogen Index (HI) and C/N ratio, various mixtures of terrigenous and algal organic matter are present in the sediments, while an increase in the proportion of terrestrial organic matter with higher HI (Type II kerogen) is recorded in upper parts of both boreholes, which may be related to paleoclimatic changes. Based on Tmax, the OM is immature and/or in the initial stage of maturity. The presence of plant terpenoids and unsubstituted PAHs, which reflected paleoflora and paleoclimate changes, was associated with the suggestion of predominating Type III kerogen in the studied sediments. Various factors influenced the application of gymnosperms/angiosperms parameters. For instance, the progressive aromatization of triterpenoids occurred in the BL5, whereas the process was hindered in the upper part of the BL3, probably as a result of high sedimentation rates. Based on C-value, Sr/Cu, and Rb/Sr ratios, during the deposition of the Lower and Middle Miocene formations of Čučale and Prebreza, a warm and humid climate prevailed, reflecting the Middle Miocene Climatic Optimum (MMCO). The production of unsubstituted PAHs in the studied samples probably relates to paleo-wildfires, anoxic conditions, or the presence of specific biomass precursors. © 2021 Sciendo. All rights reserved.
PB  - Library of the Earth Science Institute, Slovak Academy of Sciences
T2  - Geologica Carpathica
T1  - Early–Middle Miocene paleoenvironmental and paleoclimate changes in the Toplica Basin (Serbia) inferred from plant biomarkers, biochemical and elemental geochemical proxies
VL  - 72
IS  - 5
SP  - 406
EP  - 424
DO  - 10.31577/GeolCarp.72.5.4
ER  - 

@article{
author = "Burazer, Nikola and Šajnović, Aleksandra and Kašanin-Grubin, Milica and Gajica, Gordana and Orlić, Jovana and Radisavljević, Marija and Jovančićević, Branimir",
year = "2021",
abstract = "The study investigates the influence of alluvial-lacustrine processes and paleoclimate variations on the distribution of terpenoids and unsubstituted Polycyclic Aromatic Hydrocarbons (PAHs). The XRF, ICP-MS, Rock-Eval, and organic geochemical analyses were employed to investigate thirty Lower and Middle Miocene sedimentary samples from the Prebreza and Čučale formations, collected from boreholes BL3 and BL5, situated in the central part of the Toplica Basin (Serbia). The development of the studied basin part was influenced by alluvial-lacustrine processes, which affected the type of organic matter (OM) and the paleoenvironment. Sandy silt and gravel layers in the profile of the BL3 borehole indicate the contribution of thicker clasts brought by rivers. In the BL5 borehole, there are fine-grained intrabasinal lacustrine sediments in the lower part, and swamp sediments in the upper part. The lowest total organic carbon (TOC) content is in alluvial sediments of BL3 and some lacustrine sediments of BL5. Based on Hydrogen Index (HI) and C/N ratio, various mixtures of terrigenous and algal organic matter are present in the sediments, while an increase in the proportion of terrestrial organic matter with higher HI (Type II kerogen) is recorded in upper parts of both boreholes, which may be related to paleoclimatic changes. Based on Tmax, the OM is immature and/or in the initial stage of maturity. The presence of plant terpenoids and unsubstituted PAHs, which reflected paleoflora and paleoclimate changes, was associated with the suggestion of predominating Type III kerogen in the studied sediments. Various factors influenced the application of gymnosperms/angiosperms parameters. For instance, the progressive aromatization of triterpenoids occurred in the BL5, whereas the process was hindered in the upper part of the BL3, probably as a result of high sedimentation rates. Based on C-value, Sr/Cu, and Rb/Sr ratios, during the deposition of the Lower and Middle Miocene formations of Čučale and Prebreza, a warm and humid climate prevailed, reflecting the Middle Miocene Climatic Optimum (MMCO). The production of unsubstituted PAHs in the studied samples probably relates to paleo-wildfires, anoxic conditions, or the presence of specific biomass precursors. © 2021 Sciendo. All rights reserved.",
publisher = "Library of the Earth Science Institute, Slovak Academy of Sciences",
journal = "Geologica Carpathica",
title = "Early–Middle Miocene paleoenvironmental and paleoclimate changes in the Toplica Basin (Serbia) inferred from plant biomarkers, biochemical and elemental geochemical proxies",
volume = "72",
number = "5",
pages = "406-424",
doi = "10.31577/GeolCarp.72.5.4"
}

Burazer, N., Šajnović, A., Kašanin-Grubin, M., Gajica, G., Orlić, J., Radisavljević, M.,& Jovančićević, B.. (2021). Early–Middle Miocene paleoenvironmental and paleoclimate changes in the Toplica Basin (Serbia) inferred from plant biomarkers, biochemical and elemental geochemical proxies. in Geologica Carpathica
Library of the Earth Science Institute, Slovak Academy of Sciences., 72(5), 406-424.
https://doi.org/10.31577/GeolCarp.72.5.4

Burazer N, Šajnović A, Kašanin-Grubin M, Gajica G, Orlić J, Radisavljević M, Jovančićević B. Early–Middle Miocene paleoenvironmental and paleoclimate changes in the Toplica Basin (Serbia) inferred from plant biomarkers, biochemical and elemental geochemical proxies. in Geologica Carpathica. 2021;72(5):406-424.
doi:10.31577/GeolCarp.72.5.4 .

Burazer, Nikola, Šajnović, Aleksandra, Kašanin-Grubin, Milica, Gajica, Gordana, Orlić, Jovana, Radisavljević, Marija, Jovančićević, Branimir, "Early–Middle Miocene paleoenvironmental and paleoclimate changes in the Toplica Basin (Serbia) inferred from plant biomarkers, biochemical and elemental geochemical proxies" in Geologica Carpathica, 72, no. 5 (2021):406-424,
https://doi.org/10.31577/GeolCarp.72.5.4 . .

TY  - JOUR
AU  - Stojadinović, Sanja M.
AU  - Jovančićević, Branimir
AU  - Šajnović, Aleksandra
AU  - Golumbenau, Mariana
AU  - Almasan, Roxana
AU  - Jovanović, Đorđe
AU  - Brčeski, Ilija
PY  - 2021
UR  - http://cherry.chem.bg.ac.rs/handle/123456789/4898
AB  - The Techirghiol Lake, located on the Romanian coast of the Black Sea, is a hypersaline lake. In this environment, a unique ecosystem in Europe has developed with the specific capacity of producing mud by the decomposition of flora and fauna under the microbial activity (saprogenic sludge), which is used for therapeutic purposes.In this study, hydrocarbon compositions of the Techirghiol Lake mud are investigated in order to determine the origin and type of organic matter (OM). All samples are characterized by a high abundance of n-alkanes, short and high chain alkenes, pimarane, phyllocladane, indicating that OM was mainly derived from phytoplankton, filamentous green alga Cladophora vagabunda, Cyanobacteria, submerged/floating macrophytes, terrestrial and emergent plants. The terrestrial origin of organic matter is probably related to a significant input by wind or rivers. Typical oil distributions of terpanes and steranes biomarkers clearly indicate that the muds of Techirghiol Lake, in addition to native organic matter, contain a relatively low contribution of petroleum type pollutants, as well as PAH compounds of pyrogenic origin. The relatively high abundance of 1-chloroalkenes, which in some samples represent the most abundant compounds in the total distribution of hydrocarbons, together with isoprenoid thiophenes indicate the local presence of significant amounts of chloride and sulphur species in the water column or surface sediment.
PB  - Parlar Scientific Publications
T2  - Fresenius Environmental Bulletin
T1  - Organic-geochemical characteristics of the mud from the Techirghiol Lake, Romania
VL  - 30
SP  - 1595
SP  - 1607
EP  - 1607
UR  - https://hdl.handle.net/21.15107/rcub_cherry_4898
ER  - 

@article{
author = "Stojadinović, Sanja M. and Jovančićević, Branimir and Šajnović, Aleksandra and Golumbenau, Mariana and Almasan, Roxana and Jovanović, Đorđe and Brčeski, Ilija",
year = "2021",
abstract = "The Techirghiol Lake, located on the Romanian coast of the Black Sea, is a hypersaline lake. In this environment, a unique ecosystem in Europe has developed with the specific capacity of producing mud by the decomposition of flora and fauna under the microbial activity (saprogenic sludge), which is used for therapeutic purposes.In this study, hydrocarbon compositions of the Techirghiol Lake mud are investigated in order to determine the origin and type of organic matter (OM). All samples are characterized by a high abundance of n-alkanes, short and high chain alkenes, pimarane, phyllocladane, indicating that OM was mainly derived from phytoplankton, filamentous green alga Cladophora vagabunda, Cyanobacteria, submerged/floating macrophytes, terrestrial and emergent plants. The terrestrial origin of organic matter is probably related to a significant input by wind or rivers. Typical oil distributions of terpanes and steranes biomarkers clearly indicate that the muds of Techirghiol Lake, in addition to native organic matter, contain a relatively low contribution of petroleum type pollutants, as well as PAH compounds of pyrogenic origin. The relatively high abundance of 1-chloroalkenes, which in some samples represent the most abundant compounds in the total distribution of hydrocarbons, together with isoprenoid thiophenes indicate the local presence of significant amounts of chloride and sulphur species in the water column or surface sediment.",
publisher = "Parlar Scientific Publications",
journal = "Fresenius Environmental Bulletin",
title = "Organic-geochemical characteristics of the mud from the Techirghiol Lake, Romania",
volume = "30",
pages = "1595-1607-1607",
url = "https://hdl.handle.net/21.15107/rcub_cherry_4898"
}

Stojadinović, S. M., Jovančićević, B., Šajnović, A., Golumbenau, M., Almasan, R., Jovanović, Đ.,& Brčeski, I.. (2021). Organic-geochemical characteristics of the mud from the Techirghiol Lake, Romania. in Fresenius Environmental Bulletin
Parlar Scientific Publications., 30, 1595-1607.
https://hdl.handle.net/21.15107/rcub_cherry_4898

Stojadinović SM, Jovančićević B, Šajnović A, Golumbenau M, Almasan R, Jovanović Đ, Brčeski I. Organic-geochemical characteristics of the mud from the Techirghiol Lake, Romania. in Fresenius Environmental Bulletin. 2021;30:1595-1607.
https://hdl.handle.net/21.15107/rcub_cherry_4898 .

Stojadinović, Sanja M., Jovančićević, Branimir, Šajnović, Aleksandra, Golumbenau, Mariana, Almasan, Roxana, Jovanović, Đorđe, Brčeski, Ilija, "Organic-geochemical characteristics of the mud from the Techirghiol Lake, Romania" in Fresenius Environmental Bulletin, 30 (2021):1595-1607,
https://hdl.handle.net/21.15107/rcub_cherry_4898 .

TY  - CONF
AU  - Stefanović, M.
AU  - Jovančićević, Branimir
AU  - Šajnović, Aleksandra
AU  - Gallart, F.
AU  - Moreno-de las Heras, M.
AU  - Antić, N.
AU  - Kašanin-Grubin, Milica
PY  - 2021
UR  - http://cherry.chem.bg.ac.rs/handle/123456789/4908
AB  - Badlands are areas with limited vegetation, reduced or no human activity, and a great variety of geomorphic processes [1]. Badland materials have a different responsetothe same environmental conditions, because of differences in their mineralogical and physico-chemical characteristics. Many studies show that smectite-poorsediments are more resistant to different weathering treatments of freezing, thawing, wetting, and drying,than smectite-rich materials [2,3].In this paper, three unweathered samples of badlands from Spain were analyzed with the aim of monitoring, but also comparing physico-chemical changes caused by simulations of changes in climatic conditions. Selectedsediment samples havedifferent compositions. Besides quartz and calcite, the first sampleis composed of smectite and gypsum (3 UW), the second of smectite (4 UW), while the third sample is composed of neither smectite nor gypsum (5 UW). The experiment setup was designed in the way that each sample had three sub-samples, a sample for simulation of rain, snow, and a control sample (Figure 1). Sample_rain was treated with a rain intensity of ~850 ml/h for 10 minutes (~140 ml), while sample_snow was treated with crushed ice (~150 g). After precipitation simulations snow were put samples were placed in a climate chamber at - 3 °C together with a control sample. This was repeated for 15 cycles. Every cycle was documented with photographs. The leached solution was collected and its volume, pH, electrical conductivity (EC), and ion concentrations were measured. The second part of the experiment was based on exposing the samples after wetting to higher temperatures, 50 ° C. It was done in 8 cycles. FESEM and BET analyzes were performed for each sample before and after the experiments.The 3 UW samples had significantly different leachate pH and EC, while the leachate volume was similar for all samples during the experiment. Sulphate ions were leached in the highest concentrations during the whole experiment from the sample with both smectite and gypsum present. The sample with smectite has shown the highest disintegration of the structure, especially after the simulation of snow. The sample with smectite and gypsum has shown a lower degree of degradation than sample 3 UW due to the content of gypsum which increases the weathering resistance of the material. Sample 5 UW has shown the lowest degradation of the structure along with the weathering cycles. This study has proven that both mineralogical and physico-chemical properties of sediments are important for predicting their response to variable climate factors.
PB  - Belgrade : Serbian Chemical Society
C3  - Book of Abstracts 21st; European Meeting on Environmental Chemistry
T1  - The Response of Badland Materials from Spain with Different Mineralogical Content on Seasonal Changes
SP  - 52
EP  - 52
UR  - https://hdl.handle.net/21.15107/rcub_cherry_4908
ER  - 

@conference{
author = "Stefanović, M. and Jovančićević, Branimir and Šajnović, Aleksandra and Gallart, F. and Moreno-de las Heras, M. and Antić, N. and Kašanin-Grubin, Milica",
year = "2021",
abstract = "Badlands are areas with limited vegetation, reduced or no human activity, and a great variety of geomorphic processes [1]. Badland materials have a different responsetothe same environmental conditions, because of differences in their mineralogical and physico-chemical characteristics. Many studies show that smectite-poorsediments are more resistant to different weathering treatments of freezing, thawing, wetting, and drying,than smectite-rich materials [2,3].In this paper, three unweathered samples of badlands from Spain were analyzed with the aim of monitoring, but also comparing physico-chemical changes caused by simulations of changes in climatic conditions. Selectedsediment samples havedifferent compositions. Besides quartz and calcite, the first sampleis composed of smectite and gypsum (3 UW), the second of smectite (4 UW), while the third sample is composed of neither smectite nor gypsum (5 UW). The experiment setup was designed in the way that each sample had three sub-samples, a sample for simulation of rain, snow, and a control sample (Figure 1). Sample_rain was treated with a rain intensity of ~850 ml/h for 10 minutes (~140 ml), while sample_snow was treated with crushed ice (~150 g). After precipitation simulations snow were put samples were placed in a climate chamber at - 3 °C together with a control sample. This was repeated for 15 cycles. Every cycle was documented with photographs. The leached solution was collected and its volume, pH, electrical conductivity (EC), and ion concentrations were measured. The second part of the experiment was based on exposing the samples after wetting to higher temperatures, 50 ° C. It was done in 8 cycles. FESEM and BET analyzes were performed for each sample before and after the experiments.The 3 UW samples had significantly different leachate pH and EC, while the leachate volume was similar for all samples during the experiment. Sulphate ions were leached in the highest concentrations during the whole experiment from the sample with both smectite and gypsum present. The sample with smectite has shown the highest disintegration of the structure, especially after the simulation of snow. The sample with smectite and gypsum has shown a lower degree of degradation than sample 3 UW due to the content of gypsum which increases the weathering resistance of the material. Sample 5 UW has shown the lowest degradation of the structure along with the weathering cycles. This study has proven that both mineralogical and physico-chemical properties of sediments are important for predicting their response to variable climate factors.",
publisher = "Belgrade : Serbian Chemical Society",
journal = "Book of Abstracts 21st; European Meeting on Environmental Chemistry",
title = "The Response of Badland Materials from Spain with Different Mineralogical Content on Seasonal Changes",
pages = "52-52",
url = "https://hdl.handle.net/21.15107/rcub_cherry_4908"
}

Stefanović, M., Jovančićević, B., Šajnović, A., Gallart, F., Moreno-de las Heras, M., Antić, N.,& Kašanin-Grubin, M.. (2021). The Response of Badland Materials from Spain with Different Mineralogical Content on Seasonal Changes. in Book of Abstracts 21st; European Meeting on Environmental Chemistry
Belgrade : Serbian Chemical Society., 52-52.
https://hdl.handle.net/21.15107/rcub_cherry_4908

Stefanović M, Jovančićević B, Šajnović A, Gallart F, Moreno-de las Heras M, Antić N, Kašanin-Grubin M. The Response of Badland Materials from Spain with Different Mineralogical Content on Seasonal Changes. in Book of Abstracts 21st; European Meeting on Environmental Chemistry. 2021;:52-52.
https://hdl.handle.net/21.15107/rcub_cherry_4908 .

Stefanović, M., Jovančićević, Branimir, Šajnović, Aleksandra, Gallart, F., Moreno-de las Heras, M., Antić, N., Kašanin-Grubin, Milica, "The Response of Badland Materials from Spain with Different Mineralogical Content on Seasonal Changes" in Book of Abstracts 21st; European Meeting on Environmental Chemistry (2021):52-52,
https://hdl.handle.net/21.15107/rcub_cherry_4908 .

TY  - CONF
AU  - Sojadinović, S.
AU  - Veselinović, G.
AU  - Pržulj, S.
AU  - Šajnović, Aleksandra
AU  - Gajica, Gordana
AU  - Štrbac, S.
AU  - Jovančićević, Branimir
PY  - 2021
UR  - http://cherry.chem.bg.ac.rs/handle/123456789/4922
AB  - The Vrbas River is an important river ecosystem in Bosnia and Herzegovina with a length of 250 km and catchment areas of 5900 km2 . Before reaching Banja Luka, the Vrbas River passes through a canyon and numerous gorges, which are from 1955 protected by the Law on the Protection of Natural Values. This river flows through many towns and villages along the entire course, but the main anthropogenic influence comes from Banja Luka, one of the largest cities in Bosnia and Herzegovina.The aim of this research was to characterise extractable organic matter of sediments from the Vrbas River in the city area of Banja Luka. Six samples were collected at locations which were selected based on the vicinity of potential sources of anthropogenic pollution: 1 and 3 – sites near bridge and frequent traffic, 2 – city’s promenade, 6 – site in the vicinity of the thermal power plant, 7 – site close to Banja Luka Brewery and the bridge on frequent road, and 8 – site close to the food industry “Vitaminka”. Extractable organic matter was isolated with dichloromethane/ methanol mixture using a Soxhlet apparatus. Hydrocarbons were isolated from the extracts using a column chromatography and analyzed by gas chromatography – mass spectrometry (GC-MS). Detailed analysis of n-alkanes (m/z 71), diterpanes (m/z 123), hopanes (m/z 191) and steranes (m/z 217) was done. The individual peaks were identified by comparison with literature data [1] and based on their mass spectra (library: NIST11). Among saturated hydrocarbons diterpane, 16α(H)phyllocladane is the most dominant component in almost all samples (Fig.1). The exception is a sample 7. This diterpane is followed by n-alkanes with a predominance of higher odd homologues.  It indicates predominately native organic matter of Vrbas river sediments, originated mostly from terrestrial plants. That was noticed the predominant presence of native organic material in noticed in samples 2, 3, 6, while the presence of oil type pollutants was confirmed in other samples (1, 7, 8), which are near the bridge and frequent traffic roads. Fig 1. Total ion current (TIC) of saturated fraction. The previous study regarding the contents distribution of heavy metals in these sediments showed that most contaminated samples are at sampling points 2 and 6 [2]. That is not the case with oil contamination pointing to probably different sources of anthropogenic pollution.
PB  - Belgrade : Serbian Chemical Society
C3  - Book of Abstracts 21st; European Meeting on Environmental Chemistry
T1  - Determination of Extractable Organic Matter Type from Urban Sediments of Vrbas River (Banja Luka, Bosnia and Herzegovina)
SP  - 138
EP  - 138
UR  - https://hdl.handle.net/21.15107/rcub_cherry_4922
ER  - 

@conference{
author = "Sojadinović, S. and Veselinović, G. and Pržulj, S. and Šajnović, Aleksandra and Gajica, Gordana and Štrbac, S. and Jovančićević, Branimir",
year = "2021",
abstract = "The Vrbas River is an important river ecosystem in Bosnia and Herzegovina with a length of 250 km and catchment areas of 5900 km2 . Before reaching Banja Luka, the Vrbas River passes through a canyon and numerous gorges, which are from 1955 protected by the Law on the Protection of Natural Values. This river flows through many towns and villages along the entire course, but the main anthropogenic influence comes from Banja Luka, one of the largest cities in Bosnia and Herzegovina.The aim of this research was to characterise extractable organic matter of sediments from the Vrbas River in the city area of Banja Luka. Six samples were collected at locations which were selected based on the vicinity of potential sources of anthropogenic pollution: 1 and 3 – sites near bridge and frequent traffic, 2 – city’s promenade, 6 – site in the vicinity of the thermal power plant, 7 – site close to Banja Luka Brewery and the bridge on frequent road, and 8 – site close to the food industry “Vitaminka”. Extractable organic matter was isolated with dichloromethane/ methanol mixture using a Soxhlet apparatus. Hydrocarbons were isolated from the extracts using a column chromatography and analyzed by gas chromatography – mass spectrometry (GC-MS). Detailed analysis of n-alkanes (m/z 71), diterpanes (m/z 123), hopanes (m/z 191) and steranes (m/z 217) was done. The individual peaks were identified by comparison with literature data [1] and based on their mass spectra (library: NIST11). Among saturated hydrocarbons diterpane, 16α(H)phyllocladane is the most dominant component in almost all samples (Fig.1). The exception is a sample 7. This diterpane is followed by n-alkanes with a predominance of higher odd homologues.  It indicates predominately native organic matter of Vrbas river sediments, originated mostly from terrestrial plants. That was noticed the predominant presence of native organic material in noticed in samples 2, 3, 6, while the presence of oil type pollutants was confirmed in other samples (1, 7, 8), which are near the bridge and frequent traffic roads. Fig 1. Total ion current (TIC) of saturated fraction. The previous study regarding the contents distribution of heavy metals in these sediments showed that most contaminated samples are at sampling points 2 and 6 [2]. That is not the case with oil contamination pointing to probably different sources of anthropogenic pollution.",
publisher = "Belgrade : Serbian Chemical Society",
journal = "Book of Abstracts 21st; European Meeting on Environmental Chemistry",
title = "Determination of Extractable Organic Matter Type from Urban Sediments of Vrbas River (Banja Luka, Bosnia and Herzegovina)",
pages = "138-138",
url = "https://hdl.handle.net/21.15107/rcub_cherry_4922"
}

Sojadinović, S., Veselinović, G., Pržulj, S., Šajnović, A., Gajica, G., Štrbac, S.,& Jovančićević, B.. (2021). Determination of Extractable Organic Matter Type from Urban Sediments of Vrbas River (Banja Luka, Bosnia and Herzegovina). in Book of Abstracts 21st; European Meeting on Environmental Chemistry
Belgrade : Serbian Chemical Society., 138-138.
https://hdl.handle.net/21.15107/rcub_cherry_4922

Sojadinović S, Veselinović G, Pržulj S, Šajnović A, Gajica G, Štrbac S, Jovančićević B. Determination of Extractable Organic Matter Type from Urban Sediments of Vrbas River (Banja Luka, Bosnia and Herzegovina). in Book of Abstracts 21st; European Meeting on Environmental Chemistry. 2021;:138-138.
https://hdl.handle.net/21.15107/rcub_cherry_4922 .

Sojadinović, S., Veselinović, G., Pržulj, S., Šajnović, Aleksandra, Gajica, Gordana, Štrbac, S., Jovančićević, Branimir, "Determination of Extractable Organic Matter Type from Urban Sediments of Vrbas River (Banja Luka, Bosnia and Herzegovina)" in Book of Abstracts 21st; European Meeting on Environmental Chemistry (2021):138-138,
https://hdl.handle.net/21.15107/rcub_cherry_4922 .

TY  - CONF
AU  - Gajica, G.
AU  - Šajnović, Aleksandra
AU  - Schwarzbauer, J.
AU  - Kostić, A.
AU  - Jovančićević, Branimir
AU  - Stojanović, Ksenija A.
PY  - 2021
UR  - http://cherry.chem.bg.ac.rs/handle/123456789/5190
AB  - The molecular and isotopic composition of biomarkers in initial bitumen isolated from raw immature oil shale samples from the Lower Miocene Aleksinac Basin (Serbia) and liquid products (LPs) obtained by pyrolysis in open (OS) and closed systems (CS) are studied. The influence of pyrolysis type and variations of kerogen type on biomarkers composition and their isotopic signatures in LPs is determined.

The molecular composition of the LPs from the OS pyrolysis is very similar to those in initial bitumen, independently on kerogen type. The LPs from the CS pyrolysis have the distributions of biomarkers similar to those in crude oils generated in an early to main stage of “oil window“. The biomarker data suggests that mixed type I/II kerogen attained slightly higher maturity level by the CS pyrolysis than type I kerogen. The isotopic signatures of n-alkanes in LPs obtained by the OS pyrolysis are isotopically lighter than in initial bitumen, independently on kerogen type, whereas in liquid products from the CS they become heavier; showing more pronounced difference for type I kerogen. The results indicate that δ13C data should be used with caution in interpretation of samples having different maturity and particularly of LPs obtained by different system pyrolysis.
PB  - European Association of Geoscientists & Engineers
C3  - Conference Proceedings, 30th International Meeting on Organic Geochemistry (IMOG 2021)
T1  - Molecular and isotope composition of biomarkers in immature oil shale and its liquid pyrolysis products (open and closed system).
VL  - 2021
DO  - 10.3997/2214-4609.202134040
ER  - 

@conference{
author = "Gajica, G. and Šajnović, Aleksandra and Schwarzbauer, J. and Kostić, A. and Jovančićević, Branimir and Stojanović, Ksenija A.",
year = "2021",
abstract = "The molecular and isotopic composition of biomarkers in initial bitumen isolated from raw immature oil shale samples from the Lower Miocene Aleksinac Basin (Serbia) and liquid products (LPs) obtained by pyrolysis in open (OS) and closed systems (CS) are studied. The influence of pyrolysis type and variations of kerogen type on biomarkers composition and their isotopic signatures in LPs is determined.

The molecular composition of the LPs from the OS pyrolysis is very similar to those in initial bitumen, independently on kerogen type. The LPs from the CS pyrolysis have the distributions of biomarkers similar to those in crude oils generated in an early to main stage of “oil window“. The biomarker data suggests that mixed type I/II kerogen attained slightly higher maturity level by the CS pyrolysis than type I kerogen. The isotopic signatures of n-alkanes in LPs obtained by the OS pyrolysis are isotopically lighter than in initial bitumen, independently on kerogen type, whereas in liquid products from the CS they become heavier; showing more pronounced difference for type I kerogen. The results indicate that δ13C data should be used with caution in interpretation of samples having different maturity and particularly of LPs obtained by different system pyrolysis.",
publisher = "European Association of Geoscientists & Engineers",
journal = "Conference Proceedings, 30th International Meeting on Organic Geochemistry (IMOG 2021)",
title = "Molecular and isotope composition of biomarkers in immature oil shale and its liquid pyrolysis products (open and closed system).",
volume = "2021",
doi = "10.3997/2214-4609.202134040"
}

Gajica, G., Šajnović, A., Schwarzbauer, J., Kostić, A., Jovančićević, B.,& Stojanović, K. A.. (2021). Molecular and isotope composition of biomarkers in immature oil shale and its liquid pyrolysis products (open and closed system).. in Conference Proceedings, 30th International Meeting on Organic Geochemistry (IMOG 2021)
European Association of Geoscientists & Engineers., 2021.
https://doi.org/10.3997/2214-4609.202134040

Gajica G, Šajnović A, Schwarzbauer J, Kostić A, Jovančićević B, Stojanović KA. Molecular and isotope composition of biomarkers in immature oil shale and its liquid pyrolysis products (open and closed system).. in Conference Proceedings, 30th International Meeting on Organic Geochemistry (IMOG 2021). 2021;2021.
doi:10.3997/2214-4609.202134040 .

Gajica, G., Šajnović, Aleksandra, Schwarzbauer, J., Kostić, A., Jovančićević, Branimir, Stojanović, Ksenija A., "Molecular and isotope composition of biomarkers in immature oil shale and its liquid pyrolysis products (open and closed system)." in Conference Proceedings, 30th International Meeting on Organic Geochemistry (IMOG 2021), 2021 (2021),
https://doi.org/10.3997/2214-4609.202134040 . .

TY  - JOUR
AU  - Burazer, Nikola
AU  - Šajnović, Aleksandra
AU  - Kašanin-Grubin, Milica
AU  - Radisavljević, Marija
AU  - Jovančićević, Branimir
PY  - 2021
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/4563
AB  - The study investigated the influence of maturity, biomass type, and depositional settings on the distribution and relative abundance of polycyclic aromatic hydrocarbons (PAHs) for lacustrine sediments collected from depths up to 1000 m of Prebreza and Čučale stratigraphic units (the northwest part of the Toplica Basin). A recently proposed benzo[ghi]perylene/(perylene + benzo[ghi]perylene) parameter, along with commonly used Phenanthrene Alkylation Index and benzo[e]pyrene/(perylene + benzo[e]pyrene) indices, pointed out differences in maturity levels between stratigraphic units by displaying a positive linear relationship with vitrinite reflectance. However, in several immature Prebreza sediments, a substantial presence of algae and/or anoxic, mesosaline/hypersaline conditions were suitable for forming β-substituted methylphenanthrenes and 6-ring benzo[ghi]perylene. Generally, high molecular weight unsubstituted PAHs (HMWPAHs), particularly perylene, predominated Prebreza sediments. Anoxic conditions appeared to be decisive for accumulating and preserving the perylene carbon skeleton in studied stratigraphic units. Besides, more intense volcanism in the Čučale unit favored combustion processes, which prompted the accumulation of low molecular weight unsubstituted PAHs (LMWPAHs), especially phenanthrene. A general prevalence of retene over cadalene in Prebreza sediments, in which alginite and liptodetrinite predominated, implied algae as retene precursor. Selective degradation of retene or hindered demethylation of 9-methylphenanthrene under anoxic and more saline environmental settings had occurred notably in the Prebreza unit, which led to the formation of 1-methylphenanthrene and/or pimanthrene (1,7-dimethylphenanthrene). Čučale sediments with substantial amounts of vitrinite macerals or saturated diterpenoids had a predominant simonellite derived from conifers. Non-degraded and well-preserved Pinaceae conifers predominated in Prebreza sediments deposited under semi-arid climatic conditions, whereas mixed degraded/non-degraded conifers characterized Čučale sediments deposited in a wide range of climatic conditions, from semi-arid to semi-humid. © 2021, The Author(s), under exclusive licence to Springer Nature B.V.
PB  - Springer
T2  - Journal of Paleolimnology
T1  - Polycyclic aromatic hydrocarbons and their relationship to maturity and paleoenvironmental settings in lacustrine sediments of the Neogene Toplica Basin, Serbia
VL  - 66
IS  - 3
SP  - 187
EP  - 205
DO  - 10.1007/s10933-021-00199-5
ER  - 

@article{
author = "Burazer, Nikola and Šajnović, Aleksandra and Kašanin-Grubin, Milica and Radisavljević, Marija and Jovančićević, Branimir",
year = "2021",
abstract = "The study investigated the influence of maturity, biomass type, and depositional settings on the distribution and relative abundance of polycyclic aromatic hydrocarbons (PAHs) for lacustrine sediments collected from depths up to 1000 m of Prebreza and Čučale stratigraphic units (the northwest part of the Toplica Basin). A recently proposed benzo[ghi]perylene/(perylene + benzo[ghi]perylene) parameter, along with commonly used Phenanthrene Alkylation Index and benzo[e]pyrene/(perylene + benzo[e]pyrene) indices, pointed out differences in maturity levels between stratigraphic units by displaying a positive linear relationship with vitrinite reflectance. However, in several immature Prebreza sediments, a substantial presence of algae and/or anoxic, mesosaline/hypersaline conditions were suitable for forming β-substituted methylphenanthrenes and 6-ring benzo[ghi]perylene. Generally, high molecular weight unsubstituted PAHs (HMWPAHs), particularly perylene, predominated Prebreza sediments. Anoxic conditions appeared to be decisive for accumulating and preserving the perylene carbon skeleton in studied stratigraphic units. Besides, more intense volcanism in the Čučale unit favored combustion processes, which prompted the accumulation of low molecular weight unsubstituted PAHs (LMWPAHs), especially phenanthrene. A general prevalence of retene over cadalene in Prebreza sediments, in which alginite and liptodetrinite predominated, implied algae as retene precursor. Selective degradation of retene or hindered demethylation of 9-methylphenanthrene under anoxic and more saline environmental settings had occurred notably in the Prebreza unit, which led to the formation of 1-methylphenanthrene and/or pimanthrene (1,7-dimethylphenanthrene). Čučale sediments with substantial amounts of vitrinite macerals or saturated diterpenoids had a predominant simonellite derived from conifers. Non-degraded and well-preserved Pinaceae conifers predominated in Prebreza sediments deposited under semi-arid climatic conditions, whereas mixed degraded/non-degraded conifers characterized Čučale sediments deposited in a wide range of climatic conditions, from semi-arid to semi-humid. © 2021, The Author(s), under exclusive licence to Springer Nature B.V.",
publisher = "Springer",
journal = "Journal of Paleolimnology",
title = "Polycyclic aromatic hydrocarbons and their relationship to maturity and paleoenvironmental settings in lacustrine sediments of the Neogene Toplica Basin, Serbia",
volume = "66",
number = "3",
pages = "187-205",
doi = "10.1007/s10933-021-00199-5"
}

Burazer, N., Šajnović, A., Kašanin-Grubin, M., Radisavljević, M.,& Jovančićević, B.. (2021). Polycyclic aromatic hydrocarbons and their relationship to maturity and paleoenvironmental settings in lacustrine sediments of the Neogene Toplica Basin, Serbia. in Journal of Paleolimnology
Springer., 66(3), 187-205.
https://doi.org/10.1007/s10933-021-00199-5

Burazer N, Šajnović A, Kašanin-Grubin M, Radisavljević M, Jovančićević B. Polycyclic aromatic hydrocarbons and their relationship to maturity and paleoenvironmental settings in lacustrine sediments of the Neogene Toplica Basin, Serbia. in Journal of Paleolimnology. 2021;66(3):187-205.
doi:10.1007/s10933-021-00199-5 .

Burazer, Nikola, Šajnović, Aleksandra, Kašanin-Grubin, Milica, Radisavljević, Marija, Jovančićević, Branimir, "Polycyclic aromatic hydrocarbons and their relationship to maturity and paleoenvironmental settings in lacustrine sediments of the Neogene Toplica Basin, Serbia" in Journal of Paleolimnology, 66, no. 3 (2021):187-205,
https://doi.org/10.1007/s10933-021-00199-5 . .

TY  - DATA
AU  - Burazer, Nikola
AU  - Šajnović, Aleksandra
AU  - Kašanin-Grubin, Milica
AU  - Radisavljević, Marija
AU  - Jovančićević, Branimir
PY  - 2021
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/4564
PB  - Springer
T2  - Journal of Paleolimnology
T1  - Supplementary data for the article: Burazer, N.; Šajnović, A.; Kašanin-Grubin, M.; Radisavljević, M.; Jovančićević, B. Polycyclic Aromatic Hydrocarbons and Their Relationship to Maturity and Paleoenvironmental Settings in Lacustrine Sediments of the Neogene Toplica Basin, Serbia. Journal of Paleolimnology 2021, 66 (3), 187–205. https://doi.org/10.1007/s10933-021-00199-5.
UR  - https://hdl.handle.net/21.15107/rcub_cherry_4564
ER  - 

@misc{
author = "Burazer, Nikola and Šajnović, Aleksandra and Kašanin-Grubin, Milica and Radisavljević, Marija and Jovančićević, Branimir",
year = "2021",
publisher = "Springer",
journal = "Journal of Paleolimnology",
title = "Supplementary data for the article: Burazer, N.; Šajnović, A.; Kašanin-Grubin, M.; Radisavljević, M.; Jovančićević, B. Polycyclic Aromatic Hydrocarbons and Their Relationship to Maturity and Paleoenvironmental Settings in Lacustrine Sediments of the Neogene Toplica Basin, Serbia. Journal of Paleolimnology 2021, 66 (3), 187–205. https://doi.org/10.1007/s10933-021-00199-5.",
url = "https://hdl.handle.net/21.15107/rcub_cherry_4564"
}

Burazer, N., Šajnović, A., Kašanin-Grubin, M., Radisavljević, M.,& Jovančićević, B.. (2021). Supplementary data for the article: Burazer, N.; Šajnović, A.; Kašanin-Grubin, M.; Radisavljević, M.; Jovančićević, B. Polycyclic Aromatic Hydrocarbons and Their Relationship to Maturity and Paleoenvironmental Settings in Lacustrine Sediments of the Neogene Toplica Basin, Serbia. Journal of Paleolimnology 2021, 66 (3), 187–205. https://doi.org/10.1007/s10933-021-00199-5.. in Journal of Paleolimnology
Springer..
https://hdl.handle.net/21.15107/rcub_cherry_4564

Burazer N, Šajnović A, Kašanin-Grubin M, Radisavljević M, Jovančićević B. Supplementary data for the article: Burazer, N.; Šajnović, A.; Kašanin-Grubin, M.; Radisavljević, M.; Jovančićević, B. Polycyclic Aromatic Hydrocarbons and Their Relationship to Maturity and Paleoenvironmental Settings in Lacustrine Sediments of the Neogene Toplica Basin, Serbia. Journal of Paleolimnology 2021, 66 (3), 187–205. https://doi.org/10.1007/s10933-021-00199-5.. in Journal of Paleolimnology. 2021;.
https://hdl.handle.net/21.15107/rcub_cherry_4564 .

Burazer, Nikola, Šajnović, Aleksandra, Kašanin-Grubin, Milica, Radisavljević, Marija, Jovančićević, Branimir, "Supplementary data for the article: Burazer, N.; Šajnović, A.; Kašanin-Grubin, M.; Radisavljević, M.; Jovančićević, B. Polycyclic Aromatic Hydrocarbons and Their Relationship to Maturity and Paleoenvironmental Settings in Lacustrine Sediments of the Neogene Toplica Basin, Serbia. Journal of Paleolimnology 2021, 66 (3), 187–205. https://doi.org/10.1007/s10933-021-00199-5." in Journal of Paleolimnology (2021),
https://hdl.handle.net/21.15107/rcub_cherry_4564 .

TY  - JOUR
AU  - Kašanin-Grubin, Milica
AU  - Hagemann, Lukas
AU  - Gajica, Gordana
AU  - Štrbac, Snežana
AU  - Jovančićević, Branimir
AU  - Vasić, Nebojša
AU  - Šajnović, Aleksandra
AU  - Đogo Mračević, Svetlana
AU  - Schwarzbauer, Jan
PY  - 2020
UR  - http://cherry.chem.bg.ac.rs/handle/123456789/5077
AB  - The objective of this study is geochronological investigation of sedimentological and inorganic composition, in the Danube Djerdap Lake sediments in order to obtain reliable information about former pollution. Eleven samples were taken from the 135-cm-deep sediment core drilled at the Orlova location. Since the core represents sediments deposited during 1972–2016, the sedimentation rate of ~ 3 cm year−1 was estimated. Grain size, mineralogical and geochemical composition was determined. Sediments are sandy silts and clayey silts, and only the deepest and shallowest layers contain > 30% of sand-size fraction. The highest concentrations of minor elements are found in the oldest sediment (1972–1977) as a consequence of the high flux of the material from variable sources. During the sedimentation period (1975–1990), the concentrations of analyzed elements are generally decreasing until the beginning of 1990s. After this period, there are two distinct decreases and two distinct increases in concentrations of elements. The fluctuations in minor element concentrations are a consequence of both natural and anthropogenic sources. Granitic rocks situated south are source of minerals that carry minor elements. Enrichment Factor, Geoaccumulation Index, Contamination Factor and Pollution Load Index indicate that concentrations of certain minor elements at specific depositional periods have anthropogenic source.
T2  - Environmental Geochemistry and Health volume
T1  - Geochronological investigation of sediments of the Danube Djerdap lake (Serbia) - organic pollutants
VL  - 42
SP  - 693
EP  - 707
DO  - 10.1007/s10653-019-00403-6
ER  - 

@article{
author = "Kašanin-Grubin, Milica and Hagemann, Lukas and Gajica, Gordana and Štrbac, Snežana and Jovančićević, Branimir and Vasić, Nebojša and Šajnović, Aleksandra and Đogo Mračević, Svetlana and Schwarzbauer, Jan",
year = "2020",
abstract = "The objective of this study is geochronological investigation of sedimentological and inorganic composition, in the Danube Djerdap Lake sediments in order to obtain reliable information about former pollution. Eleven samples were taken from the 135-cm-deep sediment core drilled at the Orlova location. Since the core represents sediments deposited during 1972–2016, the sedimentation rate of ~ 3 cm year−1 was estimated. Grain size, mineralogical and geochemical composition was determined. Sediments are sandy silts and clayey silts, and only the deepest and shallowest layers contain > 30% of sand-size fraction. The highest concentrations of minor elements are found in the oldest sediment (1972–1977) as a consequence of the high flux of the material from variable sources. During the sedimentation period (1975–1990), the concentrations of analyzed elements are generally decreasing until the beginning of 1990s. After this period, there are two distinct decreases and two distinct increases in concentrations of elements. The fluctuations in minor element concentrations are a consequence of both natural and anthropogenic sources. Granitic rocks situated south are source of minerals that carry minor elements. Enrichment Factor, Geoaccumulation Index, Contamination Factor and Pollution Load Index indicate that concentrations of certain minor elements at specific depositional periods have anthropogenic source.",
journal = "Environmental Geochemistry and Health volume",
title = "Geochronological investigation of sediments of the Danube Djerdap lake (Serbia) - organic pollutants",
volume = "42",
pages = "693-707",
doi = "10.1007/s10653-019-00403-6"
}

Kašanin-Grubin, M., Hagemann, L., Gajica, G., Štrbac, S., Jovančićević, B., Vasić, N., Šajnović, A., Đogo Mračević, S.,& Schwarzbauer, J.. (2020). Geochronological investigation of sediments of the Danube Djerdap lake (Serbia) - organic pollutants. in Environmental Geochemistry and Health volume, 42, 693-707.
https://doi.org/10.1007/s10653-019-00403-6

Kašanin-Grubin M, Hagemann L, Gajica G, Štrbac S, Jovančićević B, Vasić N, Šajnović A, Đogo Mračević S, Schwarzbauer J. Geochronological investigation of sediments of the Danube Djerdap lake (Serbia) - organic pollutants. in Environmental Geochemistry and Health volume. 2020;42:693-707.
doi:10.1007/s10653-019-00403-6 .

Kašanin-Grubin, Milica, Hagemann, Lukas, Gajica, Gordana, Štrbac, Snežana, Jovančićević, Branimir, Vasić, Nebojša, Šajnović, Aleksandra, Đogo Mračević, Svetlana, Schwarzbauer, Jan, "Geochronological investigation of sediments of the Danube Djerdap lake (Serbia) - organic pollutants" in Environmental Geochemistry and Health volume, 42 (2020):693-707,
https://doi.org/10.1007/s10653-019-00403-6 . .

TY  - JOUR
AU  - Burazer, Nikola
AU  - Šajnović, Aleksandra
AU  - Vasić, Nebojša
AU  - Kašanin-Grubin, Milica
AU  - Životić, Dragana R.
AU  - Mendonça Filho, João Graciano
AU  - Vulić, Predrag J.
AU  - Jovančićević, Branimir
PY  - 2020
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/3837
AB  - The investigation of the relationship between paleoenvironmental conditions and distribution and relative abundance of specific saturated and aromatic hydrocarbons was the main objective of this study, thus marking the parameters, which were most sensitive to environmental changes. Insights on the type, generative potential, and maturity of organic matter (OM), as well as paleoclimate conditions, along with the reconstruction of depositional settings of the northwest part of the Toplica basin (Serbia), were provided. Organic petrographic, palynofacies, organic geochemical, mineralogical, and XRF analyses were carried out to investigate 40 sediment samples of the Prebreza and Čučale sedimentary units. Investigated samples were deposited in the saline and anoxic environment, under semi-arid to semi-humid/humid climate conditions, along with the constant inflow of volcanoclastic material. The predominance of δ-methyltrimethyltridecil chroman (δ-MTTC) within euxinic portions of the stratified water column was associated with an increase in salinity, which was noticed for sediments of the Prebreza unit. Sediments from this stratigraphic unit showed a higher contribution of algae precursor, whereas sediments of the Čučale unit suggested higher participation of microbiologically reworked OM. Most of the samples contained oil-prone kerogen type II. Maturity of the OM for sediments of the Prebreza unit ranged from immature to early-mature, while for samples of the Čučale unit varied from early-mature to mature stages. Distribution of hopane biomarkers typical for crude oil indicated that depth of 1 km was a boundary for the genesis of thermodynamic, more stable compounds. A significant portion of semifusinite was correlated with the paleofire event, which affected the distribution of n-alkanes. The high production of hydrocarbons was related to volcanic activity. Parameters, which proved to be highly susceptible at the stratigraphic boundary between the Prebreza and Čučale units, were C-value, S/H, α-MTTC, δ-MTTC, β-/γ-MTTC, and (1,3- + 1,6-)/(1,4 + 1,5-DMC), respectively.
PB  - Elsevier
T2  - Marine and Petroleum Geology
T1  - Influence of paleoenvironmental conditions on distribution and relative abundance of saturated and aromatic hydrocarbons in sediments from the NW part of the Toplica basin, Serbia
VL  - 115
SP  - 104252
DO  - 10.1016/j.marpetgeo.2020.104252
ER  - 

@article{
author = "Burazer, Nikola and Šajnović, Aleksandra and Vasić, Nebojša and Kašanin-Grubin, Milica and Životić, Dragana R. and Mendonça Filho, João Graciano and Vulić, Predrag J. and Jovančićević, Branimir",
year = "2020",
abstract = "The investigation of the relationship between paleoenvironmental conditions and distribution and relative abundance of specific saturated and aromatic hydrocarbons was the main objective of this study, thus marking the parameters, which were most sensitive to environmental changes. Insights on the type, generative potential, and maturity of organic matter (OM), as well as paleoclimate conditions, along with the reconstruction of depositional settings of the northwest part of the Toplica basin (Serbia), were provided. Organic petrographic, palynofacies, organic geochemical, mineralogical, and XRF analyses were carried out to investigate 40 sediment samples of the Prebreza and Čučale sedimentary units. Investigated samples were deposited in the saline and anoxic environment, under semi-arid to semi-humid/humid climate conditions, along with the constant inflow of volcanoclastic material. The predominance of δ-methyltrimethyltridecil chroman (δ-MTTC) within euxinic portions of the stratified water column was associated with an increase in salinity, which was noticed for sediments of the Prebreza unit. Sediments from this stratigraphic unit showed a higher contribution of algae precursor, whereas sediments of the Čučale unit suggested higher participation of microbiologically reworked OM. Most of the samples contained oil-prone kerogen type II. Maturity of the OM for sediments of the Prebreza unit ranged from immature to early-mature, while for samples of the Čučale unit varied from early-mature to mature stages. Distribution of hopane biomarkers typical for crude oil indicated that depth of 1 km was a boundary for the genesis of thermodynamic, more stable compounds. A significant portion of semifusinite was correlated with the paleofire event, which affected the distribution of n-alkanes. The high production of hydrocarbons was related to volcanic activity. Parameters, which proved to be highly susceptible at the stratigraphic boundary between the Prebreza and Čučale units, were C-value, S/H, α-MTTC, δ-MTTC, β-/γ-MTTC, and (1,3- + 1,6-)/(1,4 + 1,5-DMC), respectively.",
publisher = "Elsevier",
journal = "Marine and Petroleum Geology",
title = "Influence of paleoenvironmental conditions on distribution and relative abundance of saturated and aromatic hydrocarbons in sediments from the NW part of the Toplica basin, Serbia",
volume = "115",
pages = "104252",
doi = "10.1016/j.marpetgeo.2020.104252"
}

Burazer, N., Šajnović, A., Vasić, N., Kašanin-Grubin, M., Životić, D. R., Mendonça Filho, J. G., Vulić, P. J.,& Jovančićević, B.. (2020). Influence of paleoenvironmental conditions on distribution and relative abundance of saturated and aromatic hydrocarbons in sediments from the NW part of the Toplica basin, Serbia. in Marine and Petroleum Geology
Elsevier., 115, 104252.
https://doi.org/10.1016/j.marpetgeo.2020.104252

Burazer N, Šajnović A, Vasić N, Kašanin-Grubin M, Životić DR, Mendonça Filho JG, Vulić PJ, Jovančićević B. Influence of paleoenvironmental conditions on distribution and relative abundance of saturated and aromatic hydrocarbons in sediments from the NW part of the Toplica basin, Serbia. in Marine and Petroleum Geology. 2020;115:104252.
doi:10.1016/j.marpetgeo.2020.104252 .

Burazer, Nikola, Šajnović, Aleksandra, Vasić, Nebojša, Kašanin-Grubin, Milica, Životić, Dragana R., Mendonça Filho, João Graciano, Vulić, Predrag J., Jovančićević, Branimir, "Influence of paleoenvironmental conditions on distribution and relative abundance of saturated and aromatic hydrocarbons in sediments from the NW part of the Toplica basin, Serbia" in Marine and Petroleum Geology, 115 (2020):104252,
https://doi.org/10.1016/j.marpetgeo.2020.104252 . .

TY  - JOUR
AU  - Šajnović, Aleksandra
AU  - Grba, Nenad
AU  - Neubauer, Franz
AU  - Kašanin-Grubin, Milica
AU  - Stojanović, Ksenija A.
AU  - Petković, Nenad
AU  - Jovančićević, Branimir
PY  - 2020
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/4269
AB  - A combined inorganic and organic geochemical study was carried out on marls and mudstones collected from the Lower Miocene Lopare Basin, Bosnia and Herzegovina. A total of 46 samples collected from two boreholes, Pot 1 (depth of 193 m) and Pot 3 (depth of 344 m), showed that element abundances like boron (B), lithium (Li), strontium (Sr), uranium (U), chromium (Cr), nickel (Ni), magnesium (Mg), sodium (Na) and calcium (Ca) are much higher than average than in the upper continental crust (UCC). Chemical composition indicates at least two sources: (i) Mesozoic ophiolites occurring in the north of the investigated area, and (ii) dacito-andesitic pyroclastics (Mesozoic to Cenozoic). Lopare Basin sedimentation was influenced by strong evaporation resulting in a partly hypersaline lake, which formed during a warm climatic period, probably during the Miocene Climatic Optimum. A brief episode of humid climate conditions resulted in the basin filling-up and deposition of felsic sediments enriched in thorium (Th). Organic geochemistry shows that the majority of studied sediments contains predominantly immature to marginally mature algal organic matter (OM). The biomarker patterns are generally in agreement with the geological history of the Lopare Basin and inorganic and mineralogical data. Conversely, the molecular distribution of n-alkanes as reliable climatic and δ-MTTC as paleosalinity indicators do not support this conclusion.
PB  - Wiley
T2  - Acta Geologica Sinica - English Edition
T1  - Geochemistry of Sediments from the Lopare Basin (Bosnia and Herzegovina): Implications for Paleoclimate, Paleosalinity, Paleoredox and Provenance
VL  - 94
IS  - 5
SP  - 1591
EP  - 1618
DO  - 10.1111/1755-6724.14324
ER  - 

@article{
author = "Šajnović, Aleksandra and Grba, Nenad and Neubauer, Franz and Kašanin-Grubin, Milica and Stojanović, Ksenija A. and Petković, Nenad and Jovančićević, Branimir",
year = "2020",
abstract = "A combined inorganic and organic geochemical study was carried out on marls and mudstones collected from the Lower Miocene Lopare Basin, Bosnia and Herzegovina. A total of 46 samples collected from two boreholes, Pot 1 (depth of 193 m) and Pot 3 (depth of 344 m), showed that element abundances like boron (B), lithium (Li), strontium (Sr), uranium (U), chromium (Cr), nickel (Ni), magnesium (Mg), sodium (Na) and calcium (Ca) are much higher than average than in the upper continental crust (UCC). Chemical composition indicates at least two sources: (i) Mesozoic ophiolites occurring in the north of the investigated area, and (ii) dacito-andesitic pyroclastics (Mesozoic to Cenozoic). Lopare Basin sedimentation was influenced by strong evaporation resulting in a partly hypersaline lake, which formed during a warm climatic period, probably during the Miocene Climatic Optimum. A brief episode of humid climate conditions resulted in the basin filling-up and deposition of felsic sediments enriched in thorium (Th). Organic geochemistry shows that the majority of studied sediments contains predominantly immature to marginally mature algal organic matter (OM). The biomarker patterns are generally in agreement with the geological history of the Lopare Basin and inorganic and mineralogical data. Conversely, the molecular distribution of n-alkanes as reliable climatic and δ-MTTC as paleosalinity indicators do not support this conclusion.",
publisher = "Wiley",
journal = "Acta Geologica Sinica - English Edition",
title = "Geochemistry of Sediments from the Lopare Basin (Bosnia and Herzegovina): Implications for Paleoclimate, Paleosalinity, Paleoredox and Provenance",
volume = "94",
number = "5",
pages = "1591-1618",
doi = "10.1111/1755-6724.14324"
}

Šajnović, A., Grba, N., Neubauer, F., Kašanin-Grubin, M., Stojanović, K. A., Petković, N.,& Jovančićević, B.. (2020). Geochemistry of Sediments from the Lopare Basin (Bosnia and Herzegovina): Implications for Paleoclimate, Paleosalinity, Paleoredox and Provenance. in Acta Geologica Sinica - English Edition
Wiley., 94(5), 1591-1618.
https://doi.org/10.1111/1755-6724.14324

Šajnović A, Grba N, Neubauer F, Kašanin-Grubin M, Stojanović KA, Petković N, Jovančićević B. Geochemistry of Sediments from the Lopare Basin (Bosnia and Herzegovina): Implications for Paleoclimate, Paleosalinity, Paleoredox and Provenance. in Acta Geologica Sinica - English Edition. 2020;94(5):1591-1618.
doi:10.1111/1755-6724.14324 .

Šajnović, Aleksandra, Grba, Nenad, Neubauer, Franz, Kašanin-Grubin, Milica, Stojanović, Ksenija A., Petković, Nenad, Jovančićević, Branimir, "Geochemistry of Sediments from the Lopare Basin (Bosnia and Herzegovina): Implications for Paleoclimate, Paleosalinity, Paleoredox and Provenance" in Acta Geologica Sinica - English Edition, 94, no. 5 (2020):1591-1618,
https://doi.org/10.1111/1755-6724.14324 . .

TY  - JOUR
AU  - Hagemann, Lukas
AU  - Kašanin-Grubin, Milica
AU  - Gajica, Gordana
AU  - Štrbac, Snežana
AU  - Šajnović, Aleksandra
AU  - Jovančićević, Branimir
AU  - Vasić, Nebojša
AU  - Schwarzbauer, Jan
PY  - 2020
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/4275
AB  - The original version of this article unfortunately contained an error. The authors missed to mention that this project received financial support by the Ministry of Education, Science and Technological Development of the Republic of Serbia, Grants 176006, 176019. In addition, the Figure 1 was published erroneously. The corrected Figure 1 is shown below(Figure presented.). © 2020, Springer Nature Switzerland AG.
PB  - Springer Nature Switzerland
T2  - Water, Air, and Soil Pollution
T1  - Correction to: Four Decades of Organic Anthropogenic Pollution: a Compilation for Djerdap Lake Sediments, Serbia (Water, Air, & Soil Pollution, (2019), 230, 10, (246), 10.1007/s11270-019-4277-8)
VL  - 231
IS  - 2
SP  - 67
DO  - 10.1007/s11270-020-4420-6
ER  - 

@article{
author = "Hagemann, Lukas and Kašanin-Grubin, Milica and Gajica, Gordana and Štrbac, Snežana and Šajnović, Aleksandra and Jovančićević, Branimir and Vasić, Nebojša and Schwarzbauer, Jan",
year = "2020",
abstract = "The original version of this article unfortunately contained an error. The authors missed to mention that this project received financial support by the Ministry of Education, Science and Technological Development of the Republic of Serbia, Grants 176006, 176019. In addition, the Figure 1 was published erroneously. The corrected Figure 1 is shown below(Figure presented.). © 2020, Springer Nature Switzerland AG.",
publisher = "Springer Nature Switzerland",
journal = "Water, Air, and Soil Pollution",
title = "Correction to: Four Decades of Organic Anthropogenic Pollution: a Compilation for Djerdap Lake Sediments, Serbia (Water, Air, & Soil Pollution, (2019), 230, 10, (246), 10.1007/s11270-019-4277-8)",
volume = "231",
number = "2",
pages = "67",
doi = "10.1007/s11270-020-4420-6"
}

Hagemann, L., Kašanin-Grubin, M., Gajica, G., Štrbac, S., Šajnović, A., Jovančićević, B., Vasić, N.,& Schwarzbauer, J.. (2020). Correction to: Four Decades of Organic Anthropogenic Pollution: a Compilation for Djerdap Lake Sediments, Serbia (Water, Air, & Soil Pollution, (2019), 230, 10, (246), 10.1007/s11270-019-4277-8). in Water, Air, and Soil Pollution
Springer Nature Switzerland., 231(2), 67.
https://doi.org/10.1007/s11270-020-4420-6

Hagemann L, Kašanin-Grubin M, Gajica G, Štrbac S, Šajnović A, Jovančićević B, Vasić N, Schwarzbauer J. Correction to: Four Decades of Organic Anthropogenic Pollution: a Compilation for Djerdap Lake Sediments, Serbia (Water, Air, & Soil Pollution, (2019), 230, 10, (246), 10.1007/s11270-019-4277-8). in Water, Air, and Soil Pollution. 2020;231(2):67.
doi:10.1007/s11270-020-4420-6 .

Hagemann, Lukas, Kašanin-Grubin, Milica, Gajica, Gordana, Štrbac, Snežana, Šajnović, Aleksandra, Jovančićević, Branimir, Vasić, Nebojša, Schwarzbauer, Jan, "Correction to: Four Decades of Organic Anthropogenic Pollution: a Compilation for Djerdap Lake Sediments, Serbia (Water, Air, & Soil Pollution, (2019), 230, 10, (246), 10.1007/s11270-019-4277-8)" in Water, Air, and Soil Pollution, 231, no. 2 (2020):67,
https://doi.org/10.1007/s11270-020-4420-6 . .

TY  - JOUR
AU  - Kašanin-Grubin, Milica
AU  - Štrbac, Snežana
AU  - Antonijević, Snežana
AU  - Đogo Mračević, Svetlana
AU  - Ranđelović, Dragana
AU  - Orlić, Jovana
AU  - Šajnović, Aleksandra
PY  - 2019
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/3510
AB  - The Great War Island (GWI) is an area of importance for the protection of the environment, cultural and historical heritage of Belgrade, Serbia. According to the International Union for Conservation of Nature (IUCN) this area belongs to the IV category - Habitats and Other Regulated Areas. The main objectives of this paper are to evaluate the potential impacts of pollution on ecosystem services of the Great War Island and to explore different scenarios for future urban development of the Great War Island that will have implication for human well-being. The aims of this paper are set up based on the evaluation of ecosystem services of the Great War Island and assessment of the pollution status of the Great War Island. In order to evaluate pollution status of the GWI inorganic and organic composition of sediments were examined. Additionally, the content of microelements was determined in the leaves of the Salix alba L. Pollution indices indicate that all investigated sampling sites are polluted and correspond to high and very high degree of contamination. Cd and Cu show high to extremely high degree of contamination while Sb has extremely high degree of contamination. Content of As, Co, Cu, Ni and Zn in leaves of Salix alba L. is in sufficient to normal range, while content of Cd is between the sufficient and excessive values generalized for various species. Typical oil distributions of terpanes and steranes and values of the corresponding maturity parameters clearly indicated that the sediments of the GWI, in addition to native organic matter, contained oil pollutants of anthropogenic origin. GWI provides provisioning, regulating, supporting and cultural ecosystem services. In relation to ecosystem services two possible scenarios can be predicted: first - losing the status of a protected area due to urbanization; and the second - increasing the degree of protection by admission into international protection lists.
PB  - Elsevier
T2  - Journal of Environmental Management
T1  - Future environmental challenges of the urban protected area Great War Island (Belgrade, Serbia) based on valuation of the pollution status and ecosystem services
VL  - 251
DO  - 10.1016/j.jenvman.2019.109574
ER  - 

@article{
author = "Kašanin-Grubin, Milica and Štrbac, Snežana and Antonijević, Snežana and Đogo Mračević, Svetlana and Ranđelović, Dragana and Orlić, Jovana and Šajnović, Aleksandra",
year = "2019",
abstract = "The Great War Island (GWI) is an area of importance for the protection of the environment, cultural and historical heritage of Belgrade, Serbia. According to the International Union for Conservation of Nature (IUCN) this area belongs to the IV category - Habitats and Other Regulated Areas. The main objectives of this paper are to evaluate the potential impacts of pollution on ecosystem services of the Great War Island and to explore different scenarios for future urban development of the Great War Island that will have implication for human well-being. The aims of this paper are set up based on the evaluation of ecosystem services of the Great War Island and assessment of the pollution status of the Great War Island. In order to evaluate pollution status of the GWI inorganic and organic composition of sediments were examined. Additionally, the content of microelements was determined in the leaves of the Salix alba L. Pollution indices indicate that all investigated sampling sites are polluted and correspond to high and very high degree of contamination. Cd and Cu show high to extremely high degree of contamination while Sb has extremely high degree of contamination. Content of As, Co, Cu, Ni and Zn in leaves of Salix alba L. is in sufficient to normal range, while content of Cd is between the sufficient and excessive values generalized for various species. Typical oil distributions of terpanes and steranes and values of the corresponding maturity parameters clearly indicated that the sediments of the GWI, in addition to native organic matter, contained oil pollutants of anthropogenic origin. GWI provides provisioning, regulating, supporting and cultural ecosystem services. In relation to ecosystem services two possible scenarios can be predicted: first - losing the status of a protected area due to urbanization; and the second - increasing the degree of protection by admission into international protection lists.",
publisher = "Elsevier",
journal = "Journal of Environmental Management",
title = "Future environmental challenges of the urban protected area Great War Island (Belgrade, Serbia) based on valuation of the pollution status and ecosystem services",
volume = "251",
doi = "10.1016/j.jenvman.2019.109574"
}

Kašanin-Grubin, M., Štrbac, S., Antonijević, S., Đogo Mračević, S., Ranđelović, D., Orlić, J.,& Šajnović, A.. (2019). Future environmental challenges of the urban protected area Great War Island (Belgrade, Serbia) based on valuation of the pollution status and ecosystem services. in Journal of Environmental Management
Elsevier., 251.
https://doi.org/10.1016/j.jenvman.2019.109574

Kašanin-Grubin M, Štrbac S, Antonijević S, Đogo Mračević S, Ranđelović D, Orlić J, Šajnović A. Future environmental challenges of the urban protected area Great War Island (Belgrade, Serbia) based on valuation of the pollution status and ecosystem services. in Journal of Environmental Management. 2019;251.
doi:10.1016/j.jenvman.2019.109574 .

Kašanin-Grubin, Milica, Štrbac, Snežana, Antonijević, Snežana, Đogo Mračević, Svetlana, Ranđelović, Dragana, Orlić, Jovana, Šajnović, Aleksandra, "Future environmental challenges of the urban protected area Great War Island (Belgrade, Serbia) based on valuation of the pollution status and ecosystem services" in Journal of Environmental Management, 251 (2019),
https://doi.org/10.1016/j.jenvman.2019.109574 . .

TY  - JOUR
AU  - Hagemann, Lukas
AU  - Kašanin-Grubin, Milica
AU  - Gajica, Gordana
AU  - Štrbac, Snežana
AU  - Šajnović, Aleksandra
AU  - Jovančićević, Branimir
AU  - Vasić, Nebojša
AU  - Schwarzbauer, Jan
PY  - 2019
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/3708
AB  - Analysis of limnic sediments can serve as a tool to assess sedimentary pollution for both the status quo as well as changes over time. However, in environmental studies, often only a small number of established well-studied contaminants are considered. This study focused on a more comprehensive investigation of sedimentary pollution of Djerdap Reservoir. Therefore, complementary analytical approaches were applied covering lipophilic organic contaminants and heavy metals. Investigations were performed on limnic sediment layers representing a period of 43 years of reservoir functioning. The core was sectioned on 11 samples and analyzed for, loss on ignition (LOI), and organic compounds (gas chromatography-mass spectrometry). Here, we report the quantitative data of 43 lipophilic organic compounds indicating both domestic and industrial emissions. Measured concentrations are generally low. Surprisingly, no polychlorinated biphenyls have been detected. Data concerning grain size, sedimentological, and inorganic composition were measured and published by in Kasanin-Grubin et al. (Kasanin-Grubin et al. 2019).
PB  - Springer Nature Switzerland
T2  - Water, Air, and Soil Pollution
T1  - Four Decades of Organic Anthropogenic Pollution: a Compilation for Djerdap Lake Sediments, Serbia
VL  - 230
IS  - 10
DO  - 10.1007/s11270-019-4277-8
ER  - 

@article{
author = "Hagemann, Lukas and Kašanin-Grubin, Milica and Gajica, Gordana and Štrbac, Snežana and Šajnović, Aleksandra and Jovančićević, Branimir and Vasić, Nebojša and Schwarzbauer, Jan",
year = "2019",
abstract = "Analysis of limnic sediments can serve as a tool to assess sedimentary pollution for both the status quo as well as changes over time. However, in environmental studies, often only a small number of established well-studied contaminants are considered. This study focused on a more comprehensive investigation of sedimentary pollution of Djerdap Reservoir. Therefore, complementary analytical approaches were applied covering lipophilic organic contaminants and heavy metals. Investigations were performed on limnic sediment layers representing a period of 43 years of reservoir functioning. The core was sectioned on 11 samples and analyzed for, loss on ignition (LOI), and organic compounds (gas chromatography-mass spectrometry). Here, we report the quantitative data of 43 lipophilic organic compounds indicating both domestic and industrial emissions. Measured concentrations are generally low. Surprisingly, no polychlorinated biphenyls have been detected. Data concerning grain size, sedimentological, and inorganic composition were measured and published by in Kasanin-Grubin et al. (Kasanin-Grubin et al. 2019).",
publisher = "Springer Nature Switzerland",
journal = "Water, Air, and Soil Pollution",
title = "Four Decades of Organic Anthropogenic Pollution: a Compilation for Djerdap Lake Sediments, Serbia",
volume = "230",
number = "10",
doi = "10.1007/s11270-019-4277-8"
}

Hagemann, L., Kašanin-Grubin, M., Gajica, G., Štrbac, S., Šajnović, A., Jovančićević, B., Vasić, N.,& Schwarzbauer, J.. (2019). Four Decades of Organic Anthropogenic Pollution: a Compilation for Djerdap Lake Sediments, Serbia. in Water, Air, and Soil Pollution
Springer Nature Switzerland., 230(10).
https://doi.org/10.1007/s11270-019-4277-8

Hagemann L, Kašanin-Grubin M, Gajica G, Štrbac S, Šajnović A, Jovančićević B, Vasić N, Schwarzbauer J. Four Decades of Organic Anthropogenic Pollution: a Compilation for Djerdap Lake Sediments, Serbia. in Water, Air, and Soil Pollution. 2019;230(10).
doi:10.1007/s11270-019-4277-8 .

Hagemann, Lukas, Kašanin-Grubin, Milica, Gajica, Gordana, Štrbac, Snežana, Šajnović, Aleksandra, Jovančićević, Branimir, Vasić, Nebojša, Schwarzbauer, Jan, "Four Decades of Organic Anthropogenic Pollution: a Compilation for Djerdap Lake Sediments, Serbia" in Water, Air, and Soil Pollution, 230, no. 10 (2019),
https://doi.org/10.1007/s11270-019-4277-8 . .

TY  - DATA
AU  - Kašanin-Grubin, Milica
AU  - Štrbac, Snežana
AU  - Antonijević, Snežana
AU  - Đogo Mračević, Svetlana
AU  - Ranđelović, Dragana
AU  - Orlić, Jovana
AU  - Šajnović, Aleksandra
PY  - 2019
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/3845
PB  - Elsevier
T2  - Journal of Environmental Management
T1  - Supplementary data for the article: Kašanin-Grubin, M.; Štrbac, S.; Antonijević, S.; Djogo Mračević, S.; Randjelović, D.; Orlić, J.; Šajnović, A. Future Environmental Challenges of the Urban Protected Area Great War Island (Belgrade, Serbia) Based on Valuation of the Pollution Status and Ecosystem Services. Journal of Environmental Management 2019, 251. https://doi.org/10.1016/j.jenvman.2019.109574
UR  - https://hdl.handle.net/21.15107/rcub_cherry_3845
ER  - 

@misc{
author = "Kašanin-Grubin, Milica and Štrbac, Snežana and Antonijević, Snežana and Đogo Mračević, Svetlana and Ranđelović, Dragana and Orlić, Jovana and Šajnović, Aleksandra",
year = "2019",
publisher = "Elsevier",
journal = "Journal of Environmental Management",
title = "Supplementary data for the article: Kašanin-Grubin, M.; Štrbac, S.; Antonijević, S.; Djogo Mračević, S.; Randjelović, D.; Orlić, J.; Šajnović, A. Future Environmental Challenges of the Urban Protected Area Great War Island (Belgrade, Serbia) Based on Valuation of the Pollution Status and Ecosystem Services. Journal of Environmental Management 2019, 251. https://doi.org/10.1016/j.jenvman.2019.109574",
url = "https://hdl.handle.net/21.15107/rcub_cherry_3845"
}

Kašanin-Grubin, M., Štrbac, S., Antonijević, S., Đogo Mračević, S., Ranđelović, D., Orlić, J.,& Šajnović, A.. (2019). Supplementary data for the article: Kašanin-Grubin, M.; Štrbac, S.; Antonijević, S.; Djogo Mračević, S.; Randjelović, D.; Orlić, J.; Šajnović, A. Future Environmental Challenges of the Urban Protected Area Great War Island (Belgrade, Serbia) Based on Valuation of the Pollution Status and Ecosystem Services. Journal of Environmental Management 2019, 251. https://doi.org/10.1016/j.jenvman.2019.109574. in Journal of Environmental Management
Elsevier..
https://hdl.handle.net/21.15107/rcub_cherry_3845

Kašanin-Grubin M, Štrbac S, Antonijević S, Đogo Mračević S, Ranđelović D, Orlić J, Šajnović A. Supplementary data for the article: Kašanin-Grubin, M.; Štrbac, S.; Antonijević, S.; Djogo Mračević, S.; Randjelović, D.; Orlić, J.; Šajnović, A. Future Environmental Challenges of the Urban Protected Area Great War Island (Belgrade, Serbia) Based on Valuation of the Pollution Status and Ecosystem Services. Journal of Environmental Management 2019, 251. https://doi.org/10.1016/j.jenvman.2019.109574. in Journal of Environmental Management. 2019;.
https://hdl.handle.net/21.15107/rcub_cherry_3845 .

Kašanin-Grubin, Milica, Štrbac, Snežana, Antonijević, Snežana, Đogo Mračević, Svetlana, Ranđelović, Dragana, Orlić, Jovana, Šajnović, Aleksandra, "Supplementary data for the article: Kašanin-Grubin, M.; Štrbac, S.; Antonijević, S.; Djogo Mračević, S.; Randjelović, D.; Orlić, J.; Šajnović, A. Future Environmental Challenges of the Urban Protected Area Great War Island (Belgrade, Serbia) Based on Valuation of the Pollution Status and Ecosystem Services. Journal of Environmental Management 2019, 251. https://doi.org/10.1016/j.jenvman.2019.109574" in Journal of Environmental Management (2019),
https://hdl.handle.net/21.15107/rcub_cherry_3845 .

TY  - CONF
AU  - Gajica, G.
AU  - Šajnović, Aleksandra
AU  - Stojanović, Ksenija A.
AU  - Jovančićević, Branimir
PY  - 2018
UR  - http://cherry.chem.bg.ac.rs/handle/123456789/5177
AB  - The amount and the composition of liquid hydrocarbons (HCs) obtained by pyrolysis of oil
shale depend on kerogen type, as well as pyrolytic system and conditions [1]. The aim of this study
was to compare HCs composition of bitumen isolated from raw oil shale samples (osh) and shale oils
obtained by pyrolysis of oil shales in an open system (os) and close system (cs) (Table 1).
Investigation has been made on immature outcrop oil shale samples (vitrinite reflectance of 0.41 %
Rr) from the Aleksinac deposit (Serbia). Pyrolysis experiments were performed on the two selected
samples, which have shown the highest quantity of total organic carbon (TOC > 13 %) and high HCs
generation potential (Hydrogen Index, HI > 615 mg HCs/g TOC) in the studied sample set [2].
The HCs composition of the shale oils obtained by open system pyrolysis indicates low
maturity. They are similar to distributions of HCs in bitumens isolated from raw (initial) oil shales
(Table 1). Therefore open system pyrolysis can be useful for assessment of source and depositional
environment of organic matter. On the other head, shale oils obtained by pyrolysis in the close system
have distributions of HCs which correspond to higher maturity and they are similar to composition
of HCs in crude oil, generated in early stage of “oil window” (Table 1). Therefore, for artificial
generation of shale oil (from immature oil shale), having composition comparable to crude oil, the
close system pyrolysis is required. CPI – Carbon Preference Index, calculated from distributions of n-alkanes; Rc – calculated vitrinite
reflectance = 0.49 x C29ααα20S/20R + 0.33; / – Not determined due to the absence of C29 αββ 20Rsterane in these samples.
PB  - IFPM and IHN of the Siberian Branch of the Russian Academy of Sciences, Tomsk
C3  - 10th International Conference “Oil and Gas Chemistry”, Tomsk, Russia, October 01-05, 2018. Proceedings
T1  - The influence of pyrolysis conditions on hydrocarbons composition of the shale oil (Aleksinac oil shale, Serbia)
SP  - 809
DO  - 10.17223/9785946217408/556
ER  - 

@conference{
author = "Gajica, G. and Šajnović, Aleksandra and Stojanović, Ksenija A. and Jovančićević, Branimir",
year = "2018",
abstract = "The amount and the composition of liquid hydrocarbons (HCs) obtained by pyrolysis of oil
shale depend on kerogen type, as well as pyrolytic system and conditions [1]. The aim of this study
was to compare HCs composition of bitumen isolated from raw oil shale samples (osh) and shale oils
obtained by pyrolysis of oil shales in an open system (os) and close system (cs) (Table 1).
Investigation has been made on immature outcrop oil shale samples (vitrinite reflectance of 0.41 %
Rr) from the Aleksinac deposit (Serbia). Pyrolysis experiments were performed on the two selected
samples, which have shown the highest quantity of total organic carbon (TOC > 13 %) and high HCs
generation potential (Hydrogen Index, HI > 615 mg HCs/g TOC) in the studied sample set [2].
The HCs composition of the shale oils obtained by open system pyrolysis indicates low
maturity. They are similar to distributions of HCs in bitumens isolated from raw (initial) oil shales
(Table 1). Therefore open system pyrolysis can be useful for assessment of source and depositional
environment of organic matter. On the other head, shale oils obtained by pyrolysis in the close system
have distributions of HCs which correspond to higher maturity and they are similar to composition
of HCs in crude oil, generated in early stage of “oil window” (Table 1). Therefore, for artificial
generation of shale oil (from immature oil shale), having composition comparable to crude oil, the
close system pyrolysis is required. CPI – Carbon Preference Index, calculated from distributions of n-alkanes; Rc – calculated vitrinite
reflectance = 0.49 x C29ααα20S/20R + 0.33; / – Not determined due to the absence of C29 αββ 20Rsterane in these samples.",
publisher = "IFPM and IHN of the Siberian Branch of the Russian Academy of Sciences, Tomsk",
journal = "10th International Conference “Oil and Gas Chemistry”, Tomsk, Russia, October 01-05, 2018. Proceedings",
title = "The influence of pyrolysis conditions on hydrocarbons composition of the shale oil (Aleksinac oil shale, Serbia)",
pages = "809",
doi = "10.17223/9785946217408/556"
}

Gajica, G., Šajnović, A., Stojanović, K. A.,& Jovančićević, B.. (2018). The influence of pyrolysis conditions on hydrocarbons composition of the shale oil (Aleksinac oil shale, Serbia). in 10th International Conference “Oil and Gas Chemistry”, Tomsk, Russia, October 01-05, 2018. Proceedings
IFPM and IHN of the Siberian Branch of the Russian Academy of Sciences, Tomsk., 809.
https://doi.org/10.17223/9785946217408/556

Gajica G, Šajnović A, Stojanović KA, Jovančićević B. The influence of pyrolysis conditions on hydrocarbons composition of the shale oil (Aleksinac oil shale, Serbia). in 10th International Conference “Oil and Gas Chemistry”, Tomsk, Russia, October 01-05, 2018. Proceedings. 2018;:809.
doi:10.17223/9785946217408/556 .

Gajica, G., Šajnović, Aleksandra, Stojanović, Ksenija A., Jovančićević, Branimir, "The influence of pyrolysis conditions on hydrocarbons composition of the shale oil (Aleksinac oil shale, Serbia)" in 10th International Conference “Oil and Gas Chemistry”, Tomsk, Russia, October 01-05, 2018. Proceedings (2018):809,
https://doi.org/10.17223/9785946217408/556 . .