Drmno lignite field (Kostolac Basin, Serbia): origin and palaeoenvironmental implications from petrological and organic geochemical studies

Ksenija Stojanovic, Dragana Životić, Aleksandra Šajnović, Olga Cvetković, Hans Peter Nytoft, Georg Scheeder

Research output: Contribution to journalArticleResearchpeer-review

19 Citations (Scopus)

Abstract

The objective of the study was to determine the origin and to reconstruct the geological evolution of lignites from the Drmno field (Kostolac Basin, Serbia). For this purpose, petrological and organic geochemical analyses were used. Coal from the Drmno field is typical humic coal. Peat-forming vegetation dominated by decay of resistant gymnosperm (coniferous) plants, followed by prokaryotic organisms and angiosperms. The coal forming plants belonged to the gymnosperm families Taxodiaceae, Podocarpaceae, Cupressaceae, Araucariaceae, Phyllocladaceae and Pinaceae. Peatification was realised in a neutral to slightly acidic, fresh water environment. Considering that the organic matter of the Drmno lignites was deposited at the same time, in a relatively constant climate, it could be supposed that climate probably had only a small impact on peatification. Therefore, variations in compositions of macerals and biomarkers indicate changes in the water level, due to seasonal drying of the mire, which caused vegetation differences in the palaeoplant communities and changes in the redox conditions (from anoxic to slightly oxic) during peatification. Diagenetic transformations of the organic matter were mainly governed by microbial activity, rather than thermal alteration.

Original languageEnglish
Pages (from-to)1109-1127
Number of pages19
JournalJournal of the Serbian Chemical Society
Volume77
Issue number8
DOIs
Publication statusPublished - 2012

Keywords

  • Biomarkers
  • Kostolac Basin
  • Lignites
  • Macerals
  • Organic matter
  • Palaeoenvironment

Programme Area

  • Programme Area 3: Energy Resources

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