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
赵训林,王路,李靖,朱文卿,莫佳峰,肖金成
摘要(Abstract):
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。
关键词(KeyWords): 煤系石墨;深部构造;找矿方向;鲁塘
基金项目(Foundation): 山西省基础研究计划项目(202203021212475,202203021221230)
作者(Author): 赵训林,王路,李靖,朱文卿,莫佳峰,肖金成
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