马里共和国库利科罗金矿特征及找矿标志  

THE FEATURE AND PROSPECTING CRITERIA OF KUNICORO AU DEOPOSIT,MALI

作　　者：范慧兵 余帅 李家昆 FAN Hui-bing;YU Ahuai;LI Jia-kun(Yunnan Au Mining Group,Kunming 650299)

机构地区：[1]云南黄金矿业集团股份有限公司,云南昆明650200

出　　处：《云南地质》2020年第2期235-239,共5页Yunnan Geology

摘　　要：库利科罗金矿大地构造位于西非克拉通花岗岩-片麻岩杂岩体和绿岩带上,属火山-沉积岩建造(狭长的绿岩带)。矿体呈似层状、脉状赋存于北西向断层破碎带中,断层控矿明显,矿体围岩为古元古界比利姆岩群(Pt1al)英安岩夹凝灰岩、粉砂岩。强烈的构造作用和安山质岩浆活动,为本区热液型金矿的形成提供了有利地条件,具黄铁矿化、硅化的断层破碎带是本区主要的地找矿标志。The tectonic position of Kunicoro Au deposit is on W Africa craton granite-gneiss complex and greenrock zone,belonging to the volcanic-sedimentary rock formation(the narrow greenrock zone).The orebody is stratoid,veined in NW fault fracture zone,ore control of fault evident.The wall rock is PaleoProterozoic Billy Rock Group dacite with the intercalated tuff and siltstone.The intensive tectonism and magmatism provide the advantageous geological conditions for the Au hydrothermal metallogenesis.The pyritization,silicification and fault fracture zone are the main prospecting criteria in this area.

关 键 词：构造控矿 热液型矿床 马里库利科罗 

分 类 号：P618.51[天文地球—矿床学]