摘要
罗恩铜矿床产于中南部非洲赞比亚-刚果(金)铜钴成矿带南东端卢安夏盆地的东端,为该成矿带内一个典型的铜矿床,其矿床分布和产状严格受区域构造、地层、岩相古地理条件控制。本文旨在通过对该矿床勘查、开采历史地质资料整理,研究其成矿规律、总结找矿标志,指导卢安夏盆地深边部找矿。经对罗恩铜矿床矿体就位空间、容矿岩石、控矿构造、矿化富集规律、矿化分带等特征的研究总结,建立了罗恩-穆利亚希盆地地质矿体模型,指出矿床位于盆地东南部紧窄部位,矿体定位于沉积建造盆内的下罗恩亚群RL6地层泥质板岩和白云质片岩中,明显受后期构造变形作用影响,含矿地层与褶皱同步褶曲、折叠形成厚大矿体,"盆"、"层"、"相"、"位"、"带"为该矿床的找矿标志。
The Roan copper deposit,located in the east side of the Luanshya Basin,southeast of Zambia-Congo( DRC) Cu-Co belt in central south Africa,is a typical copper deposit strictly controlled by regional tectonic,stratum and lithofacies paleo geography conditions.By sorting geological data of the exploration and exploitation history and studying the metallogenic law and prospecting marks,this paper presents suggestions on ore prospecting in the deep subsurface and margin of the Luanshya Basin.A geologic orebody model for the Roan-Muliyashi Basin is established based on the characteristics of ore-positioning space,host rock,ore-controlling structure,and enrichment and zoning of mineralization.The model indicates that the mineral deposit is located in the narrow southeast part of the basin,and the ore body is hosted by lower Roan subgroup RL6 stratum argillaceous slate and dolomitic deposited in the basin.And tectonic deformation in the late period has an obvious impact on the location of the ore body.The synchronous bending and superposition of ore-bearing strata and folds resulted in big and thick orebodies.The prospecting marks include the basin,layer,location and belt.
作者
刘耀辉
邓贵安
方科
胡乔帆
黄学强
施发伍
莫江平
谢世业
LIU Yaohui;DENG Guian;FANG Ke;HU Qiaofan;HUANG Xueqiang;SHI Fawu;MO Jiangping;XIE Shiye(China Nonferrous Metal(Guilin)Geology and Mining Co.,Ltd.,Guilin,Guangxi 541004;CNMC Luanshya Copper Mines Plc,Luanshya,Zambia Pox 90456)
出处
《地质与勘探》
CAS
CSCD
北大核心
2020年第3期667-674,共8页
Geology and Exploration
基金
中国有色金属矿业集团有限公司科技计划项目(编号:2017KJJH11)
广西自然科学基金(编号:2017GXNSFBA198203)联合资助。
关键词
地质特征
找矿标志
罗恩铜矿床
卢安夏
赞比亚
geological feature
prospecting marks
Roan copper deposit
Luanshya
Zambia
