Organic geochemistry of Permian organic-rich sediments from the Sudetes area, SW Poland

Shareen R. Yawanarajah, Michael Kruge, Maria Mastalerz, Wojciech Sliwinski

Research output: Contribution to journalArticle

13 Scopus citations

Abstract

Lacustrine and marine sediments from the Permian rift-basins of southwestern Poland were analysed using GC-MS and petrographic techniques. High Pr/Ph ratios, γ- and β-carotanes and gammacerane in the lacustrine sediments indicate deposition under elevated water salinities. The primary organic matter is represented by bacterial and algal lipids with variable terrestrial input. Marine algal lipids with minor bacterial and cyanobacterial lipids are the primary source of organic matter in the marine sediments. Extended hopanes, n-alkanes with even-odd predominance and low Ts/Tm ratios are consistent with deposition in a closed, evaporitic basin with substantial carbonate sedimentation.

Original languageEnglish
Pages (from-to)267-281
Number of pages15
JournalOrganic Geochemistry
Volume20
Issue number2
DOIs
StatePublished - 1 Jan 1993

Keywords

  • gammacerane
  • lacustrine
  • saline-water environment
  • β-carotanes
  • γ-carotanes

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