湖南鲁塘矿区煤系石墨空间分布特征与深部找矿方向  

Spatial Distribution and Deep Prospecting of Coal-based Graphite in Lutang Mines,Hunan

作　　者：赵训林 王路 李靖 朱文卿 莫佳峰 肖金成 ZHAO Xunlin;WANG Lu;LI Jing;ZHU Wenqing;MO Jiafeng;XIAO Jincheng(Geophysical and Geochemical Survey Institute of Hunan,Changsha,Hunan 410014;Department of Geology and Surveying and Mapping,Shanxi Institute of Energy,Jinzhong,Shanxi 030600)

机构地区：[1]湖南省地球物理地球化学调查所,湖南长沙410014 [2]山西能源学院地质与测绘工程系,山西晋中030600

出　　处：《中国煤炭地质》2023年第8期11-16,共6页Coal Geology of China

基　　金：山西省基础研究计划项目(202203021212475,202203021221230)。

摘　　要：湖南鲁塘矿区二叠系龙潭组煤系地层受岩浆热-构造变形等多因素影响,煤与煤系石墨在空间分布上出现明显的复杂性,为研究清楚矿区内煤系石墨空间分布特征及为深部找矿提供指导,对煤系石墨成矿特征、赋存情况和深部构造等内容进行了分析总结,认为煤系石墨平面上总体以绕岩体为主的石墨带、半石墨带和石墨化无烟煤-无烟煤带,因构造应力对煤演化的影响,导致石墨化无烟煤-无烟煤带也出现石墨化程度较好的煤系石墨;垂向上煤/石墨矿层间距、厚度变化较大。矿区东部发育的F1断层为犁状滑脱构造,形成了位于滑脱面上下的“二层楼式”煤/石墨矿层,深部煤系石墨发育较好,石墨化度达到87.2%~93.0%,具有良好的煤系石墨成矿潜力,为今后深部找矿指明了方向。The coal measure strata of the Permian Longtan Formation are affected by multiple factors such as magmatic thermal and tectonic deformation.The spatial distribution of coal and coal-based graphite is obviously complicated.In order to provide guidance for studying the spatial distribution characteristics of coal-based graphite in mining area and deep prospecting,the metallogenic characteristics,occurrence of coal-based graphite and deep structures of the study areas were analyzed and summarized.It is considered that the graphite zone,semi-graphite zone and graphitic anthracite-anthracite zone are distributed along the rock.Due to the influence of tectonic stress,graphite samples with high degree of graphitization also occured in graphitic anthracite-anthracite zone.Coal/graphite layer spacing and thickness change vertically greatly.The F1 fault developed in the eastern part of the mining area is a plow-shaped detachment structure,forming a"two-storied model"coal/graphite layer under the detachment surface.The deep coal measure graphite is well developed,and the degree of graphitization reaches 87.2%~93.0%.It has good metallogenic potential of coal measure graphite,indicating the direction for deep prospecting in the future.

关 键 词：煤系石墨 深部构造 找矿方向 鲁塘 

分 类 号：P618.11[天文地球—矿床学] P619.252[天文地球—地质学]