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《Geology and Exploration》 2013-03
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Geological Features and Exploration Prospects of th Sediment-Hosted Stratiform Copper-Cobalt Deposits in Zambia

ZHANG Dong-hong1,2, XIAO Bo3,4, ZHANG Can3 (1.Civil & Environment Engineering school of University of Science and Technology Beijing, Beijing 100083; 2. NFC Africa Mining Plc, Kitwe, Zambia POX.22592; 3.China Nonferrous Metal Mining (Group) CO., LTD 100029; 4. Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029)  
Sediment-hosted stratiform Cu deposits, one of the most important types of copper deposits all over the world, are always prospecting targets for mining companies. The Neoproterozoic Central African Copper-Cobalt belt is one of the greatest sediment-hosted stratiform Cu-Co provinces in the world. The deposits are stratabound and mostly restricted to the Roan Group within the Lower Roan Ore Shale (LOS). The Chambishi Cu mine is a successful project for Chinese companies operated in Zambia. This work presents comprehensive studies of the geological features, ore-forming background, diagenetic and mineralization processes in the Chambishi Southeast ore district. The results reveal that the host rocks and orebodies are strictly controlled by the paleo-sedimentary environment and the paleo-topography of basement, the orebodies were formed in an epeiric shallow sea evaporitic environment and has experienced a major marine transgression-regression process. A full understanding of the geologic features and distribution of the sediment-hosted stratiform Cu deposits in Zambia is helpful for exploration and mining investments. The Copperbelt Province and North-West Province have great potential for prospecting copper and cobalt deposits in the future.
【CateGory Index】: F416.1;P618.41;P618.62
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