GRAISENS MINERALIZADOS A ESTANHO E TUNGSTÊNIO NO ESTADO DO PARANÁ

Resumo

For the first time greisen bodies and rocks altered by process of greisenization are defined in the Parana State. These mineralizations are in an extragranitic position and are believed to rest upon a granitic diaper. The process of greisenization has developed in metamorphic rocks as well as in albite-granite apophysis. As viewed in a regional scale it is possible to see a relationship between mineralized regions and large transcurrent faults, which is evidence of a tectonic control for these mineralizations.