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2025-01-23 08:37本頁面
【正文】 參考文獻(xiàn)（略） Distribution Patterns of Gold Deposits in the Archaean ManicaMutareOdzi Greenstone Belt S. Mondlane, P. Dirks, H. Jelsmaand T. Blenkinsop The Manica Mutare Odzi (MMO) greenstone belt in West Mozambique and East Zimbabwe is a late Archaean linear structure that was intruded by the Penhalonga granodiorite at ca. Ga. The ENEtrending belt prises ultramafic metavolcanic rocks along the margins and coarse clastic metasedimentary rocks in the central zone. Rock units are intensely folded and a regional perative foliation has developed. Fold axes generally plunge shallowly either to the east or to the west and parallel the regional mineral lineation. The MMO greenstone belt has produced ca. 84 tonnes of Au (Forster et al., 1996) mainly from shear zone hosted, fault hosted and quartz vein hosted deposits. Mineralization follows corridors, which seem to control the localisation of the analysis helps to define the underlying structural directions controlling 4 the distribution of gold deposits, which may not be directly obvious otherwise. This is done by enhancing linear trends in an X Y data points. Fry analysis was used to determine the spatial relationships of gold deposits. The input data were extracted from existing records (geological maps, bulletins and mine reports) of mine positions. Sixty outof 243 deposits were field checked
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