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Biomarker and micropetrographic investigations of coal from the Krepoljin Brown Coal Basin Serbia

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2013
Authors
Dević, Gordana
Popovic, Zoran V.
Article (Published version)
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Abstract
We investigated early diagenetic processes of the extractable organic matter from the Miocene freshwater sequence, which consists of coal fragments in clays, sandstones and shales alternating with continuous brown coal layers. We examined eight coals, thirteen sediments and three non-coaly underground layers. The molecular assemblages of the identified aliphatic hydrocarbons in the Krepoljin Basin reflect the abundance of plant taxa as precursors or participants in the early diagenetic stage. The data provide insight into the conditions prevailing in the lakes and bogs during early diagenesis. The dominance of diterpanes indicates that the prevalent of the organic matter was of gymnosperous origin. The hopanoid contents are considered to reflect microbial activity. That the organic matter in the Miocene Krepoljin Coal Basin is immature was confirmed by the presence of biolipids such as beta beta-hopanes, C-27 17 beta (H)-trisnorhopane. Saturated and aromatized abietanes, pimaranes and ...phyllocladanes, the most abundant compounds in all samples, indicate a predominantly higher plant input related to the Coniferous group, but identification of the individual plant families was not possible. beta-Amyrin and other triterpenoid-derived triaromatic and triaromatic C-ring cleaved hydrocarbons with triterpenoid structures are thought to be characteristic for angiosperms. Unsaturated compounds, Delta(2)-triterpanes, early intermediaries in the diagenetic transformation of angiosperms also indicate a low degree of sediment maturity. Crown Copyright

Keywords:
Miocene freshwater environment / Maceral composition / Alkanes / Diterpanes / Triterpanes / Steranes / Coal biomarkers
Source:
International Journal of Coal Geology, 2013, 105, 48-59
Publisher:
  • Elsevier
Funding / projects:
  • Geohemijska ispitivanja u funkciji pronalaženja novih ležišta fosilnih goriva i zaštite životne sredine (RS-146008)

DOI: 10.1016/j.coal.2012.11.010

ISSN: 0166-5162

WoS: 000315428200005

Scopus: 2-s2.0-84871730973
[ Google Scholar ]
13
11
URI
https://cer.ihtm.bg.ac.rs/handle/123456789/1273
Collections
  • Radovi istraživača / Researchers' publications
Institution/Community
IHTM
TY  - JOUR
AU  - Dević, Gordana
AU  - Popovic, Zoran V.
PY  - 2013
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/1273
AB  - We investigated early diagenetic processes of the extractable organic matter from the Miocene freshwater sequence, which consists of coal fragments in clays, sandstones and shales alternating with continuous brown coal layers. We examined eight coals, thirteen sediments and three non-coaly underground layers. The molecular assemblages of the identified aliphatic hydrocarbons in the Krepoljin Basin reflect the abundance of plant taxa as precursors or participants in the early diagenetic stage. The data provide insight into the conditions prevailing in the lakes and bogs during early diagenesis. The dominance of diterpanes indicates that the prevalent of the organic matter was of gymnosperous origin. The hopanoid contents are considered to reflect microbial activity. That the organic matter in the Miocene Krepoljin Coal Basin is immature was confirmed by the presence of biolipids such as beta beta-hopanes, C-27 17 beta (H)-trisnorhopane. Saturated and aromatized abietanes, pimaranes and phyllocladanes, the most abundant compounds in all samples, indicate a predominantly higher plant input related to the Coniferous group, but identification of the individual plant families was not possible. beta-Amyrin and other triterpenoid-derived triaromatic and triaromatic C-ring cleaved hydrocarbons with triterpenoid structures are thought to be characteristic for angiosperms. Unsaturated compounds, Delta(2)-triterpanes, early intermediaries in the diagenetic transformation of angiosperms also indicate a low degree of sediment maturity. Crown Copyright
PB  - Elsevier
T2  - International Journal of Coal Geology
T1  - Biomarker and micropetrographic investigations of coal from the Krepoljin Brown Coal Basin Serbia
VL  - 105
SP  - 48
EP  - 59
DO  - 10.1016/j.coal.2012.11.010
ER  - 
@article{
author = "Dević, Gordana and Popovic, Zoran V.",
year = "2013",
abstract = "We investigated early diagenetic processes of the extractable organic matter from the Miocene freshwater sequence, which consists of coal fragments in clays, sandstones and shales alternating with continuous brown coal layers. We examined eight coals, thirteen sediments and three non-coaly underground layers. The molecular assemblages of the identified aliphatic hydrocarbons in the Krepoljin Basin reflect the abundance of plant taxa as precursors or participants in the early diagenetic stage. The data provide insight into the conditions prevailing in the lakes and bogs during early diagenesis. The dominance of diterpanes indicates that the prevalent of the organic matter was of gymnosperous origin. The hopanoid contents are considered to reflect microbial activity. That the organic matter in the Miocene Krepoljin Coal Basin is immature was confirmed by the presence of biolipids such as beta beta-hopanes, C-27 17 beta (H)-trisnorhopane. Saturated and aromatized abietanes, pimaranes and phyllocladanes, the most abundant compounds in all samples, indicate a predominantly higher plant input related to the Coniferous group, but identification of the individual plant families was not possible. beta-Amyrin and other triterpenoid-derived triaromatic and triaromatic C-ring cleaved hydrocarbons with triterpenoid structures are thought to be characteristic for angiosperms. Unsaturated compounds, Delta(2)-triterpanes, early intermediaries in the diagenetic transformation of angiosperms also indicate a low degree of sediment maturity. Crown Copyright",
publisher = "Elsevier",
journal = "International Journal of Coal Geology",
title = "Biomarker and micropetrographic investigations of coal from the Krepoljin Brown Coal Basin Serbia",
volume = "105",
pages = "48-59",
doi = "10.1016/j.coal.2012.11.010"
}
Dević, G.,& Popovic, Z. V.. (2013). Biomarker and micropetrographic investigations of coal from the Krepoljin Brown Coal Basin Serbia. in International Journal of Coal Geology
Elsevier., 105, 48-59.
https://doi.org/10.1016/j.coal.2012.11.010
Dević G, Popovic ZV. Biomarker and micropetrographic investigations of coal from the Krepoljin Brown Coal Basin Serbia. in International Journal of Coal Geology. 2013;105:48-59.
doi:10.1016/j.coal.2012.11.010 .
Dević, Gordana, Popovic, Zoran V., "Biomarker and micropetrographic investigations of coal from the Krepoljin Brown Coal Basin Serbia" in International Journal of Coal Geology, 105 (2013):48-59,
https://doi.org/10.1016/j.coal.2012.11.010 . .

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