In Brazil, the hydrogeology of the mining provinces displays proper conditions for the formation of significant reserves of ground water in mineralized bodies, rocks and related soils. These should be understood as potentialy geothecnical formations, but in an enviroment widely pedogenecally active they are designated by claymineralizated formations here, low cohesion particulated systems hundreds of meter deep. Tropical climate facilitates the phenomenon of claymineralization. Mesoscale is the hydrologic normal condition.
mine ground water; ground water; tropical aquifers; environmental impact