滇中地区戌街石墨矿矿体特征及区域找矿  

CHARACTERISTICS OF THE XUJIE GRAPHITE ORE BODY AND REGIONAL EXPLORATION IN CENTRAL YUNNAN

作　　者：廖志凯 严城民[2] 李灿清 包大林 杨宇 王书宇 LIAO Zhi-kai;YAN Cheng-min;LI Can-qing;BAO Da-lin;YANG Yu;WANG Shu-yu(Yunnan Nuclear Industry 209 Geological Brigade,Kunming 650032;Regional Geological and Mineral Investigation Brigade,Yunnan Bureau of Geology and Mineral Resources,Yuxi 653100)

机构地区：[1]云南省核工业二〇九地质大队,云南昆明650032 [2]云南省地矿局区域地质矿产调查大队,云南玉溪653100

出　　处：《云南地质》2024年第1期76-81,共6页Yunnan Geology

基　　金：云南省地勘基金项目--云南省牟定县戌街地区晶质石墨矿调查评价(编号:D202203)。

摘　　要：云南牟定戌街晶质石墨矿矿体赋存于早元古代普登岩组,经历古元古代末期、青白口纪晚期的变质变形。区内圈定2条具工业意义的细晶-微晶石墨矿、细晶-粗粉晶石墨矿矿体,矿石为石墨白云母片岩型、石墨白云母石英片岩型,工业矿平均品位4.68ω%。为区域(沉积)白云母片岩-白云母石英片岩组合变质型矿床;对戌街石墨矿的成因分析、地质勘查及指示滇中地区区域找矿有较为明显的意义。The ore body of Xujie crystalline graphite deposit in Mouding,Yunnan Province is located in the Early Proterozoic Pudeng rock group,which has undergone metamorphic deformation in the late Paleoproterozoic and late Qingbaikou period.Two fine crystal-microcrystalline graphite ore bodies and fine-grained to coarse powder crystal graphite ore bodies with industrial significance are delineated in the area.The ores are graphite muscovite schist type and graphite muscovite quartz schist type,with an average grade of 4.68%for industrial ore.This deposit is a regional(sedimentary)muscovite schist-muscovite quartz schist combination metamorphic deposit.The research results of this study have obvious significance for the genesis analysis and geological exploration of the Xujie graphite deposit,as well as the regional prospecting in central Yunnan.

关 键 词：变质变形 矿石类型特征 区域找矿 戌街晶质石墨矿 云南牟定 

分 类 号：P619.252[天文地球—矿床学]