| | Journal (article/letter/editorial) | veins from the Yirisen deposit, Sula Mountains greenstone belt, Masumbiri, Sierra Leone Ibrahim J. Barrie... Abstract The auriferous veins at Yirisen, Masumbiri, Sierra Leone, occurring mainly in the form of sericitic...Mountains greenstone belt; Yirisen; Sierra Leone 1. Introduction The Yirisen gold deposit Žbetween latitude 08849X...08850X N and longitude 11844X and 11845X W, Sierra Leone., accessed by an adit and trenches, is located...the Archean basement complex of north-central Sierra Leone ŽFig. 1a.. Together with other smaller greenstone | | Velásquez, German, Salvi, Stefano, Siebenaller, Luc, Béziat, Didier, Carrizo, Daniel (2018) Control of Shear-Zone-Induced Pressure Fluctuations on Gold Endowment: The Giant El Callao District, Guiana Shield, Venezuela. Minerals, 8 (10) 430 doi:10.3390/min8100430 | Journal (article/letter/editorial) | Fluctuations on Gold Endowment: The Giant El Callao District, Guiana Shield, Venezuela German Velásquez 1,...2018 Abstract: The El Callao district, with a total endowment of more than 2000 t Au...consists of a network of interconnected quartz–albite–ankerite veins enveloping a large number of metabasaltic...of South America (Figure 1), the El Callao gold deposit is hosted by the El Callao shear zone, a megatectonic...gold district in Venezuela (>2000 t gold [1]) and it is considered as a giant orogenic gold deposit [2] |
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