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| A discussion on the genesis of surface malachite mineralization in Ghanzi area, Botswana |
| YANG Xiao-Dong, WANG Dong-Xia |
| Henan Areo Geophysical Survey and Remote Sensing Center,Zhengzhou 450053,China |
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Abstract The authors discovered an outcrop with malachite mineralization in Ghanzi area of Botswana, with the grade of Cu up to 20%. No mineral anomalies were found here with IP sounding method and no obvious copper mineral was found in the drilling core. The authors analyzed such phenomena from the geochemical characteristics of Cu in the dry climate and reached the conclusion that the richness of surface copper in this area results from the dry climate and alkaline environment. Several problems which deserve due attention in looking for copper deposits in dry areas of Africa were also put forward.
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Received: 25 August 2016
Published: 20 August 2017
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