Relaciones entre procesos evolutivos endógeno y paragénesis mineralógicas en yacimientos de Sn Y W asociados a granitoides centro-ibéricos.

Abstract

Several proposed mechanisms of granite genesis and relations between some types of those with Sn-deposits are considered. The classifícation in two contrasting granitoid types, 1 and 5, and the connection of these with the S-type have been accepted as ineffective in Central Iberia. By the other hand, the colloidal migration theory, for mineral particles, is exposed. Their mechanism begins with the solid genesis from chemical dissociations of dissolved complexes. CSIC. Apartado 257, Salamanca. * 391