TY  - JOUR
AU  - Glumičić, T.L.
AU  - Jovančićević, Branimir
AU  - Milojković, S.S.
AU  - Nedeljković, J.M.
AU  - Ercegovac, M.M.
PY  - 1996
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/68
AB  - In order to determine the origin of organic matter of Aleksinac oil shale (the village of Subotinac) a detailed GC-MS analysis of biological markers such as steranes, diterpanes and triterpanes was carried out. Also, micropetrographic analysis of samples was performed. The obtained results strongly suggest that the formation of the oil shale occurred in a large freshwater lake basin in which stratificaton of the water column was not possible, and that the majority of organic matter originates from algae, partially modified by microorganisms.
T2  - Journal of the Serbian Chemical Society
T1  - Investigation of the origin of Aleksinac oil shale organic matter
VL  - 61
IS  - 11
SP  - 1015
EP  - 1024
UR  - https://hdl.handle.net/21.15107/rcub_cherry_68
ER  - 

@article{
author = "Glumičić, T.L. and Jovančićević, Branimir and Milojković, S.S. and Nedeljković, J.M. and Ercegovac, M.M.",
year = "1996",
abstract = "In order to determine the origin of organic matter of Aleksinac oil shale (the village of Subotinac) a detailed GC-MS analysis of biological markers such as steranes, diterpanes and triterpanes was carried out. Also, micropetrographic analysis of samples was performed. The obtained results strongly suggest that the formation of the oil shale occurred in a large freshwater lake basin in which stratificaton of the water column was not possible, and that the majority of organic matter originates from algae, partially modified by microorganisms.",
journal = "Journal of the Serbian Chemical Society",
title = "Investigation of the origin of Aleksinac oil shale organic matter",
volume = "61",
number = "11",
pages = "1015-1024",
url = "https://hdl.handle.net/21.15107/rcub_cherry_68"
}

Glumičić, T.L., Jovančićević, B., Milojković, S.S., Nedeljković, J.M.,& Ercegovac, M.M.. (1996). Investigation of the origin of Aleksinac oil shale organic matter. in Journal of the Serbian Chemical Society, 61(11), 1015-1024.
https://hdl.handle.net/21.15107/rcub_cherry_68

Glumičić T, Jovančićević B, Milojković S, Nedeljković J, Ercegovac M. Investigation of the origin of Aleksinac oil shale organic matter. in Journal of the Serbian Chemical Society. 1996;61(11):1015-1024.
https://hdl.handle.net/21.15107/rcub_cherry_68 .

Glumičić, T.L., Jovančićević, Branimir, Milojković, S.S., Nedeljković, J.M., Ercegovac, M.M., "Investigation of the origin of Aleksinac oil shale organic matter" in Journal of the Serbian Chemical Society, 61, no. 11 (1996):1015-1024,
https://hdl.handle.net/21.15107/rcub_cherry_68 .

TY  - JOUR
AU  - Jovančićević, Branimir
AU  - Tasić, L.Z.
AU  - Polić, Predrag S.
AU  - Nedeljković, J.M.
AU  - Golovko, A.K.
AU  - Vitorović, Dragomir K.
PY  - 1996
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/62
AB  - GC-MS was applied in order to determine the effects of biodegradation on steranes and terpanes in crude oils. Sterane and tcrpane maturation parameters were correlated in 36 crude oils, biodegraded to various degrees (28 samples originate from the SE part of the Pannonian Basin, Yugoslavia, and X samples were obtained from the oil fields of Eastern Russia). The absence of any correlation between terpane maturation parameters indicated that terpane isomers are highly altered during biodegradation. On the other hand, satisfactory correlation between sterane parameters indicated that their abundance and distribution is less affected by microbial activity, and it can be concluded that sterane parameters represent more reliable maturation parameters.
T2  - Journal of the Serbian Chemical Society
T1  - GC-MS in crude oil correlation studies - Effects of biodegradation on sterane and terpane maturation parameters
VL  - 61
IS  - 9
SP  - 817
EP  - 821
UR  - https://hdl.handle.net/21.15107/rcub_cherry_62
ER  - 

@article{
author = "Jovančićević, Branimir and Tasić, L.Z. and Polić, Predrag S. and Nedeljković, J.M. and Golovko, A.K. and Vitorović, Dragomir K.",
year = "1996",
abstract = "GC-MS was applied in order to determine the effects of biodegradation on steranes and terpanes in crude oils. Sterane and tcrpane maturation parameters were correlated in 36 crude oils, biodegraded to various degrees (28 samples originate from the SE part of the Pannonian Basin, Yugoslavia, and X samples were obtained from the oil fields of Eastern Russia). The absence of any correlation between terpane maturation parameters indicated that terpane isomers are highly altered during biodegradation. On the other hand, satisfactory correlation between sterane parameters indicated that their abundance and distribution is less affected by microbial activity, and it can be concluded that sterane parameters represent more reliable maturation parameters.",
journal = "Journal of the Serbian Chemical Society",
title = "GC-MS in crude oil correlation studies - Effects of biodegradation on sterane and terpane maturation parameters",
volume = "61",
number = "9",
pages = "817-821",
url = "https://hdl.handle.net/21.15107/rcub_cherry_62"
}

Jovančićević, B., Tasić, L.Z., Polić, P. S., Nedeljković, J.M., Golovko, A.K.,& Vitorović, D. K.. (1996). GC-MS in crude oil correlation studies - Effects of biodegradation on sterane and terpane maturation parameters. in Journal of the Serbian Chemical Society, 61(9), 817-821.
https://hdl.handle.net/21.15107/rcub_cherry_62

Jovančićević B, Tasić L, Polić PS, Nedeljković J, Golovko A, Vitorović DK. GC-MS in crude oil correlation studies - Effects of biodegradation on sterane and terpane maturation parameters. in Journal of the Serbian Chemical Society. 1996;61(9):817-821.
https://hdl.handle.net/21.15107/rcub_cherry_62 .

Jovančićević, Branimir, Tasić, L.Z., Polić, Predrag S., Nedeljković, J.M., Golovko, A.K., Vitorović, Dragomir K., "GC-MS in crude oil correlation studies - Effects of biodegradation on sterane and terpane maturation parameters" in Journal of the Serbian Chemical Society, 61, no. 9 (1996):817-821,
https://hdl.handle.net/21.15107/rcub_cherry_62 .

TY  - JOUR
AU  - Milićević, Zoran
AU  - Šaban, M.M.
AU  - Jovančićević, Branimir
AU  - Nedeljković, J.M.
PY  - 1996
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/65
AB  - Biological markers in the alkane fraction of coal from the central and southern parts of the Kosovo basin (Yugoslavia) were analyzed by using computerized gas chromatography-mass spectrornetry (GC-MS). The presence of tricyclic diterpanes with pimarane and abictane structure and tctracyclic ditcrpanc 16α(H) phyllocladane indicated that coniferous resins participated in the formation of the organic mater of Kosovo basin coal. The presence of Dc-A lupanc proved the partipication of dicotyledonous gymnosperms in the formation of the organic matter, while the presence of pentacyclic triterpanes with hopane structure indicated that the degradation of the organic substance was caused by microorganisms of the bacterial type. The results of the GC-MS analysis of the biomarkcrs were used to estimate the degree of carbonification of the investigated coal. The presence of diterpanes with pimarane structure and the presence of monoaromatic hopane structure (D-ring), and the absence of 16β(H) phyllocladane and 18α(H)22,29,30 trisnorhopane (Ts), confirmed that Kosovo basin coal is of a low carbonification degree.
T2  - Journal of the Serbian Chemical Society
T1  - GC-MS in organic geochemistry of coal-estimation of the origin and degree of carbonification in coal from the Kosovo basin (Yugoslavia)
VL  - 61
IS  - 9
SP  - 823
EP  - 830
UR  - https://hdl.handle.net/21.15107/rcub_cherry_65
ER  - 

@article{
author = "Milićević, Zoran and Šaban, M.M. and Jovančićević, Branimir and Nedeljković, J.M.",
year = "1996",
abstract = "Biological markers in the alkane fraction of coal from the central and southern parts of the Kosovo basin (Yugoslavia) were analyzed by using computerized gas chromatography-mass spectrornetry (GC-MS). The presence of tricyclic diterpanes with pimarane and abictane structure and tctracyclic ditcrpanc 16α(H) phyllocladane indicated that coniferous resins participated in the formation of the organic mater of Kosovo basin coal. The presence of Dc-A lupanc proved the partipication of dicotyledonous gymnosperms in the formation of the organic matter, while the presence of pentacyclic triterpanes with hopane structure indicated that the degradation of the organic substance was caused by microorganisms of the bacterial type. The results of the GC-MS analysis of the biomarkcrs were used to estimate the degree of carbonification of the investigated coal. The presence of diterpanes with pimarane structure and the presence of monoaromatic hopane structure (D-ring), and the absence of 16β(H) phyllocladane and 18α(H)22,29,30 trisnorhopane (Ts), confirmed that Kosovo basin coal is of a low carbonification degree.",
journal = "Journal of the Serbian Chemical Society",
title = "GC-MS in organic geochemistry of coal-estimation of the origin and degree of carbonification in coal from the Kosovo basin (Yugoslavia)",
volume = "61",
number = "9",
pages = "823-830",
url = "https://hdl.handle.net/21.15107/rcub_cherry_65"
}

Milićević, Z., Šaban, M.M., Jovančićević, B.,& Nedeljković, J.M.. (1996). GC-MS in organic geochemistry of coal-estimation of the origin and degree of carbonification in coal from the Kosovo basin (Yugoslavia). in Journal of the Serbian Chemical Society, 61(9), 823-830.
https://hdl.handle.net/21.15107/rcub_cherry_65

Milićević Z, Šaban M, Jovančićević B, Nedeljković J. GC-MS in organic geochemistry of coal-estimation of the origin and degree of carbonification in coal from the Kosovo basin (Yugoslavia). in Journal of the Serbian Chemical Society. 1996;61(9):823-830.
https://hdl.handle.net/21.15107/rcub_cherry_65 .

Milićević, Zoran, Šaban, M.M., Jovančićević, Branimir, Nedeljković, J.M., "GC-MS in organic geochemistry of coal-estimation of the origin and degree of carbonification in coal from the Kosovo basin (Yugoslavia)" in Journal of the Serbian Chemical Society, 61, no. 9 (1996):823-830,
https://hdl.handle.net/21.15107/rcub_cherry_65 .