中非铜(钴)成矿带构造地质特征及其控矿作用研究  

Study on the tectonic geological characteristics and ore control of the copper(cobalt)metallogenic belt in Central Africa

作　　者：王幻 曾瑞垠 何海洋 王新雨 张志超 闫鹏程 郭建栋 范姣 WANG Huan;ZENG Ruiyin;HE Haiyang;WANG Xinyu;ZHANG Zhichao;YAN Pengcheng;GUO Jiandong;FAN Jiao(BeiJing Institute of Geology For Mineral Resources Co.,Ltd.,Beijing 100012,China;Sinotech Mineral Exploration Co.,Ltd.,Beijing 100012,China)

机构地区：[1]北京矿产地质研究院有限责任公司,北京100012 [2]中色地科矿产勘查股份有限公司,北京100012

出　　处：《矿产勘查》2023年第11期2125-2134,共10页Mineral Exploration

基　　金：金诚信矿业管理股份有限公司项目“刚果(金)萨布韦矿权区遥感解译和成矿预测”(202106)资助。

摘　　要：中非铜(钴)成矿带位于Lufilian造山带,由刚果(金)加丹加铜(钴)矿带和赞比亚铜矿带两部分组成,成矿带内推覆体构造、褶皱、褶叠层构造较发育。本文通过总结区域断裂构造、推覆体构造特征与铜(钴)矿床的分布特征,研究典型矿床中断层、褶皱、褶叠层构造特征及与铜(钴)矿化的关系,发现铜(钴)矿床受构造的控制明显,推覆体构造控制了矿床的整体形态、规模和空间产出位置,断裂构造可以为含矿热液的活动提供运移通道和沉淀空间,同生褶皱及褶叠层构造有利于含矿热液的沉淀,尤其褶皱转折端为成矿作用提供更大的容矿空间,常发育有厚大矿体。综合分析认为,断裂构造、同生褶皱、褶叠层构造是中非铜(钴)成矿带寻找富厚矿体的有利地段。The Central African copper(cobalt)metallogenic belt is located in the Lufilian Orogen and consists of Congo(Kinshasa)Katanga copper(cobalt)ore belt and Zambia copper ore belt.The nappe structure,fold,and fold stacking structure are relatively developed in the metallogenic belt.This paper summarizes the regional fault,nappe structure characteristics and the distribution characteristics of copper(cobalt)deposits,studies the structural characteristics of fault,fold and fold in typical deposits and their relationship with copper(cobalt)mineralization,and finds that copper(cobalt)deposits are obviously controlled by structures,and nappe structure controls the overall shape,scale and spatial location of the deposits,the fault structure can provide migration channels and precipitation spaces for ore-bearing hydrothermal activities,syngenetic folds and fold stack structures are conducive to the precipitation of ore-bearing hydrothermal fluid.In particular,the bend end of the fold provides greater ore-bearing space for mineralization,and often developed large and thick ore bodies.According to comprehensive analysis,the fault structure,syngenetic fold and fold stacking structure are favorable areas for finding thick and rich ore bodies in the Central African copper(cobalt)metallogenic belt.

关 键 词：中非铜(钴)成矿带 推覆体构造 褶皱构造 褶叠层构造 成矿作用 

分 类 号：P548[天文地球—构造地质学]