南桐矿区龙潭煤系热演化及煤变质研究  

Study on Thermal Evolution and Coal Metamorphism of the Longtan Coal Series in Nantong Mining Area

作　　者：朱兴珊[1] 徐凤银[1] 陈长国 

机构地区：[1]西南石油学院,南桐鱼田堡煤矿

出　　处：《中国矿业大学学报》1996年第4期38-44,共7页Journal of China University of Mining & Technology

基　　金：煤炭部科学基金

摘　　要：川东地区二叠系龙潭煤系煤变质分带与褶皱关系密切，背斜部位变质浅，向斜部位变质深，且变化急剧．在对南桐矿区重点研究的基础上，用沉积速率比值法和沉积趋势法恢复了川东地区各时期的沉积厚度以及褶皱运动前后龙潭煤系的热演化史，并用Ｈｏｏｄ法确定了煤变质阶段，对川东的煤变质规律作出了合理的解释。The coal metamorphic Zoning of Longtan Coal Series of Permian in Nantong Mining Area, Eastern Sichuan, has a close relationship to folds, with a low metamorphic rank for anticlines and a high one with sudden changes for synclines. Having specially studied the Nantong Mining Area, the authors recovered the thickness of deposition in different periods and the thermal evolution history of Longtan Coal Series before and after the folding movement by using methods of sedimentary rate ratio and sedimentary tendency. LOM is determined by using Hood’s method and the regularity of metamorphism is reasonably explained.

关 键 词：煤系 热演化 煤变质 煤矿床 矿化 

分 类 号：P618.110.5[天文地球—矿床学]