Geochemical Characteristics of Source Rocks in Changling Area, Songliao Basin

Abstract

Abstract: There mainly distributes four series of source rocks, including Nenjiang, Qingshankou, Denglouku and Shahezi-Yingcheng formations of Cretaceous in Changling area, Songliao basin. This paper presents the distribution feature of dark mudstone, organic matter content, types and maturity of organic matter in these source rocks mentioned above. The geochemical characteristics of extract from the source rocks, such as organic matter composition of saturation hydrocarbon (based on gas chromatogram), composition and configuration characteristics of steroid and triterpane (based on GC/MS),and carbon isotopes composition of chloroform bitumen A and group composition have been presented too. According to the geochemical characteristics of organic matter in source rocks, the parent matter type, geochemistry environment and maturity of organic matter were analyzed.

Key words: Songliao basin, Changling, source bed, geochemistry, characteristics

CLC Number:

TE112.113

ZHANG Zhi-huan, WU Yu-yuan, YU Kai, WU Shui-ping, LIU Hong-jun. Geochemical Characteristics of Source Rocks in Changling Area, Songliao Basin[J]. Xinjiang Petroleum Geology, 2002, 23(6): 501-506.

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Geochemical Characteristics of Source Rocks in Changling Area, Songliao Basin

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