Journal of Jilin University(Earth Science Edition) ›› 2017, Vol. 47 ›› Issue (4): 1083-1103.doi: 10.13278/j.cnki.jjuese.201704110

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Research Status and Prospecting Potential of Copper Polymetallic Deposits in Central-South Africa

Ren Junping, Wang Jie, Liu Xiaoyang, He Fuqing, He Shengfei, Zuo Libo, Xu Kangkang, Gong Penghui, Sun Kai, Liu Yu   

  1. Tianjin Center, China Geological Survey, Tianjin 300170, China
  • Received:2016-11-01 Online:2017-07-26 Published:2017-07-26
  • Supported by:
    Supported by Project of China Gcological Survey(1212011220910),Foreign Risk Exploration Project of Central Geolo-gical Prospecting Fund([2011]D3-04)and Technical Aid Project of the Ministry of Commerce([2012]558)

Abstract: Copper resources in the Southern and Central Africa are mainly distributed in 12 countries such as Zambia, DR Congo, and South Africa. Based on the study of the formation of African continent, subsequent Neoproterozoic pan-African movement, and Paleozoic-Cenozoic sedimentation, the authors suggest that apart from the northwestern margin of the continent, namely the region from the Morocco to Atlas mountains in Tunisia, the African continent is a grade Ⅰ tectonic unit, and which can be broken down into 5 grade Ⅱ and 28 grade Ⅲ tectonic units by taking the Neoproterozoic pan-African movement as a marker. The 5 gradeⅡtectonic units include the Western African craton, the Eastern African craton, the Central African craton, the Southern African craton, and the pan-African structural belt; on the basis of the above tectonic breakdown, the whole African continent is suggested to be the grade Ⅰ metallogenic domain, and which is divided into 3 grade Ⅱ metallogenic provinces and 32 grade Ⅲ metallogenic regions(belts). 12 of them are related to copper deposits. The 3 metallogenic provinces include Au-Fe-Mn-Cr-Ni-U and diamond metallogenic province in the Southern African craton, Au-Cu-Fe-W-Sn-Nb-Ta and diamond metallogenic province in the Central African craton, and the metallogenic province in pan-African tectonic belt. A preliminary analysis was conducted. Based on the results of geological characteristics and mineralization setting, a summary of the typical ore deposits in the major metallogenic regions (belts) is given in this paper to cover a variety of deposits such as sedimentary metamorphic-reformed Cu-Co deposits, mafic and ultramafic intrusive related Cu-Ni deposits, greenstone belt related copper deposits, carbonate rock related copper deposits, and copper polymetallic deposits associated with limestone. According to the distribution of copper resources, the breakdown of tectonic units, the metallogenic regions (belts), and the characteristics of representative deposits, the authors divide the central and Southern Africa into five potential copper polymetallic ore prospecting areas.

Key words: copper polymetallic deposits, research status, metallogenic potential analysis, Central-Southern Africa

CLC Number: 

  • P618.4
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