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四川省兴文县志留系龙马溪组页岩有机质特征
引用本文:罗跃,朱炎铭,陈尚斌. 四川省兴文县志留系龙马溪组页岩有机质特征[J]. 黑龙江科技学院学报, 2010, 20(1): 32-34,39
作者姓名:罗跃  朱炎铭  陈尚斌
作者单位:中国矿业大学,资源与地球科学学院,江苏,徐州,221008
摘    要:为更好地评估四川盆地页岩气资源,结合野外调查和样品实验,研究了四川省兴文县地区志留系龙马溪组页(泥)岩的有机质特征及垂向变化规律。结果表明:研究区内出露的志留系龙马溪组岩层以黑色泥岩为主,厚度为262.91m,泥岩中残余有机碳丰度在地层中由底部至上部呈逐渐减少的趋势;有机质主要来自志留纪的海相笔石群,其丰度属于较好—最好的烃源岩,类型为Ⅰ型(腐泥型)。研究区具备页岩气形成的物质基础,为进一步开展页岩气调查提供了依据。

关 键 词:四川兴文县  志留系  龙马溪组  总有机碳

Characteristics of organic matter of Silurian Longmaxi Group in Xingwen County, Sichuan Province
LUO Yue,ZHU Yanming,CHEN Shangbin. Characteristics of organic matter of Silurian Longmaxi Group in Xingwen County, Sichuan Province[J]. Journal of Heilongjiang Institute of Science and Technology, 2010, 20(1): 32-34,39
Authors:LUO Yue  ZHU Yanming  CHEN Shangbin
Affiliation:(School of Resource & Earth Science,China University of Mining & Technology,Xuzhou 221008,China)
Abstract:Aimed at a better evaluation of the prospect of shale gas resources in the Sichuan Basin,this paper introduces the study of the characteristics of crag organic matter of Silurian Department of Longmaxi occurring in Xingwen County in Sichuan Province and the law governing the vertical variation of organic matter,combined with field investigation and sample test.The result indicates that the Silurian Department of Longmaxi,with a thickness of 262.91 m,is dominated by black mudstone in which the abundance of the remaining organic carbon tends to reduces gradually from the bottom to the top.The organic matter mainly from the marine Silurian graptolite groups exhibits the abundance classified as the better or best hydrocarbon source rock of type Ⅰ(spoiled clay mold).The research area occurring as the material basis for formation of the shale gas provides evidences for further investigation into of the shale gas.
Keywords:Xingwen County in Sichuan Silurian Longmaxi Group TOC
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