豫西北地区晚古生代煤的热演化特征及其古地热场背景  

Characteristics of the Thermal Evolution of Late Palaeozoic Coal and Its Palaeogeothermal Field Background in Northwest Henan

作　　者：秦勇[1] 李大华[1] 侯士宁 成国清 曾建光 

机构地区：[1]中国矿业大学煤田地质系

出　　处：《中国矿业大学学报》1992年第3期55-63,共9页Journal of China University of Mining & Technology

摘　　要：作者利用地质模拟法、有机岩石学方法、流体包裹体测温测压法、X射线衍射法及扫描电镜法,详细研究了豫西北地区晚古生代煤的物质组成、物理性质及围岩的蚀变等特征。在此基础上,作者进一步探讨了影响该地区晚古生代煤热演化的晚中生代古地热场背景。文中的认识,为了解本区晚古生代煤层甲烷的富集条件、资源评价及有关的区域地质等问题提供了一定的科学依据。With the methods of the geological modelling, the organic petrology, the inclusion thermometry, XRD and SEM, the authors have made an investigation on the compo-sition,the physical properties of Late Palaeozoic coal and the characteristics of the hydrothennal alteration of its surrounding rocks, and then go further into the characteristics of Late Mesozoic Palaeogeothermal field affecting thermal evollution of Late Palaeozoic coal in northwest Henan. Some conclusions presented in this paper would provide scientific foundation for the evaluation on the accumulated conditions, reserves of Late Palaeozoic in-seam methane and the related problems of regional geology in the area.

关 键 词：煤 晚古生代 古地热场 热演化 

分 类 号：P618.110.5[天文地球—矿床学]