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The Origin and Fate of Isoprenoid C 20 and C 15 Sulphur Compounds in Sediments and Oils

1987; Taylor & Francis; Volume: 28; Issue: 1-2 Linguagem: Inglês

10.1080/03067318708078398

1029-0397

Jaap S. Sinninghe Damsté, J.W. de Leeuw,

Metabolomics and Mass Spectrometry Studies

Abstract The identification of isoprenoid C20 and C15 sulphur compounds in Rozel Point Oil is described. The occurrence of isoprenoid-thiophenes, -thiolanes, -benzothiophenes, -bithiophenes, -(thienyl)alkylthiophenes and -thienylthiolanes in this oil and in other oils and sediments is reported. These compounds are thought to originate from sulphur incorporation into unsaturated phytanols and farnesol at the early stages of diagenesis. Compounds, that contain two sulphur atoms, are thought to originate from polyunsaturated phytanols, compounds especially abundant in hypersaline environments due to the presence of archaebacteria and green and purple sulphur bacteria. A diagenetical scheme, indicating relationships between precursors and products is presented.