TYPES IN SOURCE ROCKS IN BAIYUN SAG, SOUTH CHINA SEA AND ITS BEARING ON SEDIMENTARY FACIES

LAN Lei; LI Youchuan; SUN Yumei

doi:10.16562/j.cnki.0256-1492.2016.05.012

2016 Vol. 36, No. 5

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Article navigation > Marine Geology & Quaternary Geology > 2016 > 36(5): 121-129

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LAN Lei, LI Youchuan, SUN Yumei. TYPES IN SOURCE ROCKS IN BAIYUN SAG, SOUTH CHINA SEA AND ITS BEARING ON SEDIMENTARY FACIES[J]. Marine Geology & Quaternary Geology, 2016, 36(5): 121-129. doi: 10.16562/j.cnki.0256-1492.2016.05.012

Citation:

LAN Lei, LI Youchuan, SUN Yumei. TYPES IN SOURCE ROCKS IN BAIYUN SAG, SOUTH CHINA SEA AND ITS BEARING ON SEDIMENTARY FACIES[J]. Marine Geology & Quaternary Geology, 2016, 36(5): 121-129. doi: 10.16562/j.cnki.0256-1492.2016.05.012

TYPES IN SOURCE ROCKS IN BAIYUN SAG, SOUTH CHINA SEA AND ITS BEARING ON SEDIMENTARY FACIES

CNOOC Research Institute, Beijing 100027, China

Received Date: 21 November 2015

Revised Date: 17 February 2016

Abstract

Abstract

Three source rock intervals from the Baiyun Sag are analyzed with geochemical and other techniques, such as rock pyrolysis, kerogen maceral, GC-MS as well as sporopollen and algae analysis, in order to characterize the abundance and types of organic matter. It is revealed that the organic matter mainly comes from higher terrestrial plants and the abundance of the organic matter varies widely. The types of source rocks are closely related to the sedimentary facies or the environment of deposition. The source rock with high abundance and higher plant-dominated organic matter indicates a facies of delta plain; the source rock with moderate abundance and higher plant-dominated organic matter suggests a facies of delta front; the source rock with moderate abundance and mixed organic matter of higher plant and algae indicates a facies of shallow sea, and the source rock with low abundance of organic matter dominated by higher plant indicate a facies of deep sea.
- deep water area /
- source rock /
- delta plain /
- delta front /
- shallow sea /
- bathyal sea

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References

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