Unusual polycyclic alkanes in Lower Cretaceous Ostracode sediments and related oils of the Western Canada Sedimentary Basin

Li Maowen, C. L. Riediger, M. G. Fowler, L. R. Snowdon, Teofilo Abrajano

    Research output: Contribution to journalArticlepeer-review

    25 Scopus citations

    Abstract

    Several series of unusual polycyclic alkanes (ranging from tricyclic to heptacyclic) have been identified as major components in extracts of Lower Cretaceous Ostracode gene sediments of the Western Canada Sedimentary Basin. These compounds appear to be specific markers for the Ostracode Zone-sourced oils in the Lower Mannville Group reservoirs of the Provost area and may represent a new class of molecules whose natural distribution and biological significance remains to be determined. The stable carbon isotopic data of the tri-, tetra- and pentacyclic alkanes appear to be related to pristane and phytane, yet the significant isotopic depletion observed in the hexacyclic compounds suggests that they may be derived from different groups of organisms or different biosynthetic routes.

    Original languageEnglish (US)
    Pages (from-to)199-209
    Number of pages11
    JournalOrganic Geochemistry
    Volume25
    Issue number3-4
    DOIs
    StatePublished - Dec 1 1996

    Keywords

    • Ostracode Zone in Western Canada Sedimentary Basin
    • heptacyclic terpanes
    • hexacyclic terpanes
    • pentacyclic terpanes
    • tetracyclic terpanes
    • tricyclic terpanes

    ASJC Scopus subject areas

    • Geochemistry and Petrology

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