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Giant quartz vein hosted along faults in granitoids, were identified in Catas Altas Massif, State of Sao Paulo, Brazil. Supposing hidrothermal character of these veins, geological reconnaissance was done to evaluate the mineral potential in the granitoids areas. As a result some epigenetic ocorrences of W, Sn, F and Ba were detected. Although no detailed study of these veins related with the spatially associated mineralization was done, it is suggested to use the giant quartz veins as a guide prospection

revista do instituto geológico

Considerações sobre a origem e o significado, em prospecção mineral, dos veios gigantes de quartzo em granitóides do maciço Catas Altas no sudeste do estado de São Paulo