Geobiological approach to evaluating marine carbonate source rocks of hydrocarbon

作     者：YIN HongFu XIE ShuCheng YAN JiaXin HU ChaoYong HUANG JunHua Tenger QIE WenKun QIU Xuan 

作者机构：State Key Laboratory of Biogeology and Environmental Geology China University of Geosciences Wuhan 430074 China State Key Laboratory of Geological Process and Mineral Resources China University of Geoscience Wuhan 430074 China Wuxi Institute of Petroleum Geology SINOPEC Wuxi 214151 China 

出 版 物：《Science China Earth Sciences》 (中国科学（地球科学英文版）)

年 卷 期：2011年第54卷第8期

页      面：1121-1135页

核心收录：

学科分类：083002[工学-环境工程] 0830[工学-环境科学与工程（可授工学、理学、农学学位）] 081803[工学-地质工程] 07[理学] 08[工学] 0818[工学-地质资源与地质工程] 0713[理学-生态学] 

基　　金：supported by National Basic Research Program of China(Grant No.2011CB808800) Key Project of China Petroleum&Chemical Corporation(Grant No.G0800-06-2S-319) NSFC Program for Innovative Research Team(Grant No.40621002) the"111"Project(Grant No.B08030) 

主　　题：geobiological evaluation carbonate source rocks parameters proxies 

摘      要：Evaluating the pre-Jurassic marine source rocks in China has been difficult because these rocks are generally too highor over-maturated for most traditional methods to *** to the remaining parameter TOC (%),its lower limit for recognizing the carbonate source rocks in China has been in *** Phanerozoic sections in the Middle-Upper Yangtze Platform and the Guizhou-Hunan-Guangxi Basin have been studied in search for a different approach to complementing the traditional evaluation method for these source *** have applied a geobiological approach to tracing the organic carbon (OC) output and accumulation from the living stage (primary productivity) to the post-mortem deposited remains,and finally to the preserved burial *** biological and geological parameters are employed to represent the OC of the three stages.A series of proxies of these parameters are discussed and integrated to establish a geobiological evaluation system independent of TOC and other traditional *** we use the Guangyuan section in Sichuan as an example for the geobiological *** results indicate that in the argillaceous rocks,the geobiological parameters show the qualified source rocks in accordance with high TOC values;but in the carbonates,the good source rocks delineated by the geobiological parameters have a wide range of TOC,from 0.03% to 1.59%,mostly0.3%.We suggest that it is still premature to set TOC=0.3% or 0.5% as the lower limit for the pre-Jurassic carbonate source rocks in South China.