江西萍乡芦溪地区晶质石墨矿地质特征及找矿标志  

Geological Characteristics and Prospecting Indicators of Crystalline Graphite Deposits in Luxi Area,Pingxiang,Jiangxi Province

作　　者：邓晓强 符海明 张永忠 Deng Xiaoqiang;Fu Haiming;Zhang Yongzhong(Pingxiang Natural Resources Development Group Co.,Ltd,Pingxiang 337000,China;Basic Geological Survey Institute of Jiangxi Geological Suervey and Exploration Institute Nanchang 330030,China)

机构地区：[1]萍乡市自然资源发展集团有限公司,江西萍乡337000 [2]江西省地质调查勘查院基础地质所,江西南昌330030

出　　处：《四川有色金属》2025年第1期8-10,21,共4页Sichuan Nonferrous Metals

摘　　要：石墨已成为新兴技术产业的重要原材料,被中国、美国、欧盟等多个国家和组织列为关键性战略矿产,特别是晶质石墨在国际上具有稀缺性,确定了找矿的方向。江西的晶质石墨矿成矿地质条件良好,勘查及研究程度低。我们在江西萍乡芦溪地区寒武纪-震旦纪地层中发现的含碳层固定碳品位最高可达8%以上,平均品位约2%~4%,电子探针样品显示晶质石墨最大片径可达500μm,晶质石墨样品一般片径约50~270μm,较稳定的沉积含碳层为晶质石墨的形成提供了充分的物质来源,加里东期岩浆事件及区域变质作用加强为该区晶质石墨的形成提供了温压条件。Graphite has become an important raw material for emerging technology industries and has been listed as a key strategic mineral by many countries and organizations such as China,the United States,and the European Union.Especially crystalline graphite is scarce internationally,which has determined the direction of mineral exploration.The geological conditions for the formation of crystalline graphite deposits in Jiangxi are favorable,but the level of exploration and research is low.The carbon bearing layer we found in the Cambrian Sinian strata of the Luxi area in Pingxiang,Jiangxi Province has a fixed carbon grade of up to 8% or more,with an average grade of about 2% to 4%.Electron probe samples show that the maximum sheet size of crystalline graphite can reach 500 μm,while crystalline graphite samples generally have a sheet size of about 50 to 270 μm.The relatively stable sedimentary carbon bearing layer provides sufficient material sources for the formation of crystalline graphite.The Caledonian magmatic events and regional metamorphism have strengthened the temperature and pressure conditions for the formation of crystalline graphite in this area.

关 键 词：晶质石墨 接触变质 地质特征 萍乡芦溪地区 

分 类 号：P618[天文地球—矿床学]