Influence on Organic Matter Cauced by Mesozoic Transgressive Events in the Kuqa Depression, Tarim Basin
- Received Date: 1998-02-23
- Publish Date: 1999-03-10
-
Key words:
- Kuqa depression /
- Mesozoic era /
- transgression /
- characteristics of organic
Abstract: Biomarker of organic matter and isotopic composition of n-alkanes in saturated hydrocarbon have been researched,and major samples are selected from Triassic and Jurassic important source rock in Kuqa section.From results we can see that characteristics of biomarker and biological composition in transgressive member are different from non-transgressive member.With various organisms input, the types of organic matter have been changed in transgressive processes.Biomarker parameters of transgressive member have specific characteristics:Pr/Ph less than 1,higher abundance of steranes,abundance of C27 are similar to C29 stertane,tricyclic terpane with feature of C21<C23>C24 and isotopic composition of nalkanes enriched 12C. Mesozoic transgressive events have important significance on oil and gas resources of Tabie uplift area and Kuqa depression in Tarim basin.
Citation: | Zhou Shixin, Li Yuan, Zhang Zhongning, Luo Binjie, Yuan Jianying, Duan Yi. Influence on Organic Matter Cauced by Mesozoic Transgressive Events in the Kuqa Depression, Tarim Basin[J]. Acta Sedimentologica Sinica, 1999, 17(1): 106-111. |