刚果(金)迪兹瓦铜钴矿东矿床地质特征及深部找矿潜力分析  

Geological characteristics and analysis of prospecting potential of the Eastern Deposit of the Deziwa Cu-Co Deposit In Congo(DRC)

作　　者：刘耀辉 姜海 刘伟 莫江平 胡乔帆 曾高福 LIU Yaohui;JIANG Hai;LIU Wei;MO Jiangping;HU Qiaofan;ZENG Gaofu(China Nonferrous Metals(Guilin)Geology And Mining Co.Ltd.,Guilin 541004,Guangxi,China)

机构地区：[1]中国有色桂林矿产地质研究院有限公司,广西桂林541004

出　　处：《地质找矿论丛》2024年第3期412-422,共11页Contributions to Geology and Mineral Resources Research

基　　金：国家重点研发计划项目“钴镍成矿规律与高效勘查技术示范研究”课题二“沉积岩-变沉积容矿型和红土型矿床钴镍成矿作用与找矿勘查”(编号:2022YFC2903502);中国有色矿业集团有限公司项目“中非铜钴成矿带典型矿床钴成矿富集规律与成因”(编号:2022KJJH01)联合资助。

摘　　要：迪兹瓦(Deziwa)铜钴矿依据矿体分布空间关系,划分为主矿床和东矿床。迪兹瓦矿床位于中非新元古代铜钴多金属矿带的西段,卢弗里安(Lufilian)弧形构造带之外部褶皱逆冲带中部。矿区出露地层以新元古界加丹加超群罗恩群、孔德龙古群和恩古巴群地层为主。该区经历了多次推覆运动,相互叠加,构造主要为褶皱及断裂(块)构造,整体相对比较复杂。迪兹瓦东矿床铜钴矿体赋存于加丹加超群恩古巴群利卡西亚群(Likasi)的(Ng1.1)内,呈层状或似层状产出,并受成矿后的推覆构造制约;该矿床属于同生沉积-热液改造型铜钴矿床,且以后期叠加改造和风化淋滤富集为主。综合分析认为,迪兹瓦铜钴矿东矿床主要矿体E1东西两侧及深部尚未进行工程封闭控制,仍有扩储空间。The Deziwa copper-cobalt deposit is divided into the main deposit and the east deposit located in the northwestern part of the Zambia-Congo(Kinshasa)copper belt and is part of the northwestern segment of the Lufilian arcuate tectonic belt in central Africa.The area are mainly composed of the Neoproterozoic Katanga supergroup Roan group,Kongdelong group and Nguba group with multiple nappe movements and superimposition of the nappe with each other.Fold and fault(block)are the main structure.On the whole it is relatively complex.The ore bodies are layered or layeroid occurring in(Ng1.1)of the Likasi group(Likasi)of the Nguba group of the Katanga supergroup and are controlled by the post mineralization nappe.It is a syn-sedimentary-hydrothermal solution reworked Cu-Co deposit dominated by late overprint and weathering and leaching enrichment.Comprehensive analysis shows that at the east and west ends the ore body E1 of the east deposit is open to depth.There is still room for expansion.

关 键 词：迪兹瓦铜钴矿床 地质特征 找矿潜力 刚果(金) 

分 类 号：P618.62[天文地球—矿床学]