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Title: Geology, geochemistry and origin of the Buck Reef Gold Deposit, Mwanza Region, Tanzania
Author: Foum, A. A.
Awarding Body: University College of Swansea
Current Institution: Swansea University
Date of Award: 1983
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The geology of the Buck Reef Gold Mine, Mwanza Region, Tanzania, including the structure and metamorphism are considered: they are followed by a description of the rock types in the mine area. Geochemical and petrological characteristics of the rock types and mineralization are given. A total of 314 samples were collected from the Buck Reef mine for chemical analyses. The samples were analysed for 5i02, Ti0p , A1203, Fe 203, MnO, MgO, CaO, Na 20,.K0, P,05, S, Be, Co, Cr, Cu, Ni, Pb, Rb, Sr, Zn, by X-ray fluorescence spectrometry; Fee, R20, C02, C were determined by classic chemical methods. The geochemical variations in the wall rocks are presented as diagrams. Three alteration phases in the wall rock are distinguished, moving inwards from the greenstone country rock into the mineralized shear zone: chlorite schist, carbonate-chlorite-sericite schist, and carbonate-sericite schist. It is shown that the gold-quartz lenses were formed as a result of the loss of silica from the country rock and its migration into the shear zone. The environment of the Buck Reef deposit is compared to similar areas from other parts of the world and the origin of the deposit is discussed in the light of present day theories.
Supervisor: Not available Sponsor: Not available
Qualification Name: Thesis (Ph.D.) Qualification Level: Doctoral
EThOS ID:  DOI: Not available