云南省石墨矿床成因类型、分布特征及勘查现状  

GENETIC TYPES,DISTRIBUTION CHARACTERISTICS,AND EXPLORATION STATUS OF GRAPHITE DEPOSITS IN YUNNAN PROVINCE

作　　者：洪鑫科 张兴桐 杜小波 李炼鹏 HONG Xin-ke;ZHANG Xing-tong;DU Xiao-bo;LI Lian-peng(Yunnan Nuclear Industry 209 Geological Brigade,Kunming 650032;Yunnan Exploration-Assessment and Study Center of Three Rare Mineral Resources,Kunming 650032)

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

出　　处：《云南地质》2024年第S01期168-173,共6页Yunnan Geology

基　　金：2022年度云南省地质勘查基金项目,项目编号:D202203。

摘　　要：根据以往研究成果,云南省石墨矿床类型可分为区域变质型、接触变质型、岩浆型和热液型四种。按矿床成因类型共划分了2个石墨成矿区带。前寒武纪稳定陆块区是寻找区域变质型石墨矿的主要层位;中生代煤系地层与中酸性岩浆岩外接触带是接触变质型石墨矿有利的成矿部位;侵入至石炭纪地层中的碱性花岗岩是寻找岩浆同化混染型石墨矿的重要成矿岩体。According to previous research results,the graphite deposits in Yunnan province can be divided into four types:regional metamorphic type,contact metamorphic type,magmatic type and hydrothermal type.Based on this,two graphite metallogenic zones were divided.The Precambrian stable land block area is the main layer for searchingfor metamorphic graphite deposits in the region;The outer contact zone between Mesozoic coal bearing strata and intermediate acid magmatic rocks is the favorable metallogenic site for contact metamorphic graphite deposits.The alkaline granite intruding into Carboniferous strata is the important ore-forming rock for searching for magmatic assimilation-mixed graphite deposits.

关 键 词：石墨 矿床类型 成矿地质特征 成矿区带划分 找矿远景 云南 

分 类 号：P619.252[天文地球—矿床学]