滇中地区戌街石墨矿普登岩组的划分及找矿意义  

DIVISION AND PROSPECTING SIGNIFICANCE OF PUDENG ROCK GROUP OF XUJIE GRAPHITE DEPOSIT IN CENTRAL YUNNAN

作　　者：李灿清 李炼鹏 杨宇 严城民[3] 王书宇 LI Can-qing;LI Lian-peng;YANG Yu;YAN Cheng-min;WANG Shu-yu(Yunnan Nuclear Industry 209 Geological Brigade,Kunming 650032;Yunnan Exploration-Assessment and Study Center of Three Rare Mineral Resources,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]云南省三稀矿产资源勘查评价工程研究中心,云南昆明650032 [3]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S01期341-346,共6页Yunnan Geology

基　　金：云南省地质勘查基金项目“云南省牟定县戌街地区晶质石墨矿调查评价”(D202103)。

摘　　要：云南牟定县戌街晶质石墨矿通过1∶10000地质调查及稀疏探矿工程,将含矿地层古元古界普登岩组(Pt 1 pd.)划分为4个岩性段。d岩段以浅粒岩、石英岩为主要岩性,其余3个岩段主要为白云(石英)片岩、(含)石墨白云(石英)片岩、黑云(石英)片岩;Ⅰ号矿体产于c岩段中,Ⅱ号矿体产于a岩段中,3个岩性段含矿特征有明显差别。进一步对普登岩组岩性段划分,查明各岩段的晶质石墨含矿性,对矿区进行地质勘查、在邻区寻找晶质石墨矿有较明显的找矿意义。The Paleoproterozoic Pudeng Formation(Pt 1 pd.),which is the ore bearing strata of the Xujie crystalline graphite deposit in Mouding County,Yunnan Province,was divided into four lithological sections,through a 1:10,000 geological survey and sparse prospecting project.The d section consists mainly of shallow-grained rock and quartzite,while the other three sections are predominantly composed of dolomitic(quartz)schist,graphite-bearing dolomitic(quartz)schist,and biotite(quartz)schist.The No.1 ore body is located in rock section c,while the No.2 ore body is located in rock section a.There are significant differences in the ore bearing characteristics among the three lithological sections.Further dividing the lithological sections of the Pudeng Formation and identifying the ore bearing properties in each section has significant implications for geological exploration in the mining area and searching for crystalline graphite deposits in neighboring areas.

关 键 词：普登岩组划分 找矿意义 戌街晶质石墨矿 云南牟定 

分 类 号：P619.252[天文地球—矿床学]