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Aliphatic biomarkers and their signal from two hydrogeochemically differing sedimentary environments of the Tertiary Krepoljin Coal Basin (Serbia)

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2011
Authors
Dević, Gordana
Popovic, Zoran
Article (Published version)
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Abstract
The sediments of the coal-bearing series of the Tertiary Krepoljin Brown Coal Basin have been investigated and presented in this manuscript. The samples of the intercalated mixed sediments (pieces of coal in clays, sandstones and shales) originate from two hydrogeochemically differing sedimentary environments: the illite-montmorillonitic (IM), and the calcitic (Ct) environment. The characteristics of the early diagenetic processes which influenced the composition of the organic matter of this sediment were assessed by the statistical correlation analysis and multivariate principal component analysis. The precursor material of higher plants gymnosperms had a significant influence on the overall organic matter of mixed sediments in both hydrochemical environments. A weak effect of N/C ratios on the specific diagenetic transformations of hopanoid molecules is noticed in the samples of the calcite environment. Sterane maturation transformations are not marked as significant for the samples... of mixed sediments by the component analysis. The samples of I-M environments show a strong inhibitory effect on the processes of diastereoisomerization.

Keywords:
Tertiary Krepoljin Coal Basin / Serbia / Sediments from calcitic and illite-montmorillonitic environments / Principal component analysis / Aliphatic biomarkers / alpha-Phyllocladane/C(S27) ratio
Source:
International Journal of Earth Sciences, 2011, 100, 6, 1391-1399
Publisher:
  • Springer, New York
Projects:
  • Ministry of Science and Environmental Protection, Republic of Serbia

DOI: 10.1007/s00531-010-0554-x

ISSN: 1437-3254

WoS: 000293776000013

Scopus: 2-s2.0-80051472002
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URI
http://cer.ihtm.bg.ac.rs/handle/123456789/809
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