Geological Features and Exploration Prospects of the Sediment-Hosted Stratiform Copper-Cobalt Deposits in Zambia
详细信息
- 责任者：Zhang Donghong (Civil and Environment Engineering School ; University of Science and Technology ; Beijing 100083 ; China) ; Xiao Bo
- 刊名：Geology and Prospecting
- 出版年：2013
- 卷期：49(3)
- 关键词：沉积矿床 ; sedimentary deposit ; 铜矿 ; copper ores ; 钴矿 ; cobalt ores ; 赞比亚 ; Zambia
- 页码：p.577-588
- 图表：illus., 23 refs.
- 分类号：1001
- issnNo：ISSN0495-5331
- isbnNo：CN11-2043/P
摘要
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.
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