Abstract
The Cu-Co deposits of the Nchanga Mine in the Zambian Copperbelt are consistently hosted by a arenites or arkoses with mineralization progressing for short distances into overlying shales. The ore horizons show a consistent association with flat-lying structures and in the Upper Orebody, are developed with thrust controlled antiformal structures. Hydrothermal alteration includes phlogopite ± sericite followed by dolomite precipitation and available stable δ34S of sulfides and δ13C data for carbonates are consistent with “in situ” thermochemical reduction of a sulphate rich fluid. The new data reported here suggest a strong link between Cu and Co ore formation in the Zambian Copperbelt and the development of structures during basin inversion and the onset of the Luffilian orogeny.
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References
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© 2005 Springer-Verlag Berlin Heidelberg
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Roberts, S., McGowan, R., Boyce, A. (2005). Origin of the Nchanga copper-cobalt deposits of the Zambian Copperbelt. In: Mao, J., Bierlein, F.P. (eds) Mineral Deposit Research: Meeting the Global Challenge. Springer, Berlin, Heidelberg. https://doi.org/10.1007/3-540-27946-6_45
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DOI: https://doi.org/10.1007/3-540-27946-6_45
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