文章摘要
曾瑞垠,谭康雨,黄建业,张毅,陈德稳,詹勇,董少波.中非铜矿带多层位成矿特征及成因[J].矿产勘查,2021,12(1):68-77
中非铜矿带多层位成矿特征及成因
Genesis and characteristics of multilayer metallogenesis in the Central African Copper Belt
投稿时间:2020-08-06  
DOI:
中文关键词: 铜钴矿  加丹加铜钴矿带  赞比亚铜矿带  多层位成矿  Roan群  矿床成因  中非
英文关键词: copper-cobalt deposit, Katanga Copper-Cobalt Belt, Zambian Copper Belt, multilayers metallogenesis, Roan Group, genesis of deposit, Central African
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作者单位
曾瑞垠 昆明理工大学, 国土资源工程学院,云南 昆明 650093
北京中资环钻探有限公司,北京 100012
中色地科矿产勘查股份有限公司,北京 100012 
谭康雨 北京中资环钻探有限公司,北京 100012
中色地科矿产勘查股份有限公司,北京 100012 
黄建业 北京中资环钻探有限公司,北京 100012
中色地科矿产勘查股份有限公司,北京 100012 
张毅 北京中资环钻探有限公司,北京 100012
中色地科矿产勘查股份有限公司,北京 100012 
陈德稳 北京中资环钻探有限公司,北京 100012
中色地科矿产勘查股份有限公司,北京 100012 
詹勇 北京中资环钻探有限公司,北京 100012
中色地科矿产勘查股份有限公司,北京 100012 
董少波 中色地科矿产勘查股份有限公司,北京 100012 
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中文摘要:
      中非铜矿带位于刚果(金)—赞比亚的Lufilian造山带,新元古界加丹加超群发育有大量的沉积岩容矿层状铜矿(SSC),为了解铜矿床的成矿特征和矿床成因,对矿床地质特征进行总结,发现中非铜矿带主要为还原相型和砂岩型层状铜矿床,具有明显的多层位层控特征。其中加丹加铜钴矿带(KCB)盛产还原相型铜矿床,主要赋存于Roan群Mines组(R2),上部的 Nguba群地层中发育有铜矿床和锌铜矿床;赞比亚铜带(ZCB)大多数还原相型铜矿床,赋存于下Roan群Kitwe组的矿化页岩段地层内(RL7),在矿化页岩段的下盘和上盘中发育砂岩型铜矿床。综合近年来的研究成果显示,中非铜矿带多层位成矿特征为盆地卤水交代成因,氧化含矿卤水和富含有机物的沉积物、还原性流体发生还原作用形成多层位铜(钴)矿体和赤铁矿—辉铜矿—斑铜矿—黄铜矿—黄铁矿的矿物分带。
英文摘要:
      The Central African Copper Belt is located in the Lufilian Orogenic Belt between the Congo (DRC) and Zambia. In the neoproterozoic Katanga supergroup, there are a large number of The Sediment-Hosted Stratiform Copper Deposits (SSC). In order to understand the metallogenic characteristics and genesis of copper deposits, summarize the geological characteristics of copper deposits. It is found that the Central African Copper Belt is mainly composed of reduced-facies type and sandstone type, has obvious characteristics of multilayer hosted. The Katanga Copper-Cobalt Belt (KCB) is rich in reduced-facies copper-cobalt deposits, mainly occurring in the Mines Formation of Roan Group (R2), copper deposits and zinc-copper deposits are developed in the Nguba Group. Most of the reduced-facies copper deposits in Zambian Copper Belt (ZCB) occur in the the Ore shale (RL7) of Kitwe Formation from Lower Roan Group, and there are sandstone type copper deposits in the Lower and Upper of the Ore shale (RL7). Combined with recent research results, the multilayer metallogenic characteristics of the Central African Copper Belt are the origin of brine metasomatism. The multilayer copper (cobalt) ore bodies and mineral zonation of hematite- pyrochalcoite- porphyry- chalcopyrite- pyrite is formed by the reduction of oxidized ore-bearing brine with organic-bearing sediments and reducing fluids.
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