Geology

摘要

Pederneira pegmatites are part of the Eastern Brazilian Pegmatite Province. This province, the Sierra Pampeanas (Argentina) Province and the Sierra Borborema (Brazil) Provinces, constitute the three main pegmatite provinces in South America (Putzer, 1976). The Eastern Brazilian Pegmatite Province is situated mainly in the State of Minas Gerais but also overlaps into the southern part of the State of Bahia, the western margin of the State of Espirito Santo and the northern part of the State of Rio de Janeiro (Paiva, 1946; Putzer, 1976; Correia Neves et al, 1986).