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The Characters and Evaluation of Source Rocks of the Late Cretaceous in the Sunwu-Jiayin Basin, NE China

FAN Fu, GAO Fu-hong, LIU Li, GAO Hong-mei   

  1. College of Earth Sciences, Jilin University, Changchun 130061，China
  • Received:2007-03-13 Revised:1900-01-01 Online:2007-09-26 Published:2007-09-26
  • Contact: FAN Fu

Abstract: Taipinglinchang Formation is the important source rocks in the Sunwu-Jiayin Basin. Geochemical results indicate that the black mudstone is rich in saporpelinite+exinite，showing the tendency to generate oil, of which the average content of total organic carbon is 0.648%, chloroform bitumen “A”is 0.015%. The quality of the potential source rocks meet the standard of middle-good source rock. Carbon isotope, organic elements and microcomponents analysis indicate that they contain typeⅡ2 and Ⅲ kerogen. The distribution of Ro is from 0.55% to 0.92%，with an average of 0.78%，demonstrating the low mature-immature source rock. It is therefore concluded that the source rocks of Taipinglinchang Formation are middle-good with immature-low mature.

Key words: Sunwu-Jiayin Basin, Taipinglinchang Formation, source rock

CLC Number: 

  • P534.53
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