Abstract
The Borborema pegmatite Province, NE-Brazil revisited
Highlights
GEOLOGICAL SETTINGThe Borborema Pegmatite Province (BPP) in Northeastern Brazil was known since World War I, when it was exploited for mica
Its most famous product nowadays is the turquoise blue copper bearing “Paraíba Tourmaline”. In spite of this importance, very few systematic geological studies were performed about the BPP in the last fifty years and several important questions remain unsolved or were never addressed, like the classification of the pegmatites based on geochemical techniques and paragenetical properties, comparison with other pegmatite fields, their regional zoned distribution and the identification of the granitic source
The present review will focus these points based on previous literature and geochemical and geochronological data and field observations, obtained in the last two decades, mainly as introduction on the knowledge on the BPP for the postsymposium field trip participants
Summary
The Borborema Pegmatite Province (BPP) in Northeastern Brazil was known since World War I, when it was exploited for mica. At the end of World War II it became famous as one of the world’s most important producers of Ta-ore and of beautiful specimens of exotic minerals. It became an important supplier of raw materials for the Brazilian ceramics industry. Its most famous product nowadays is the turquoise blue copper bearing “Paraíba Tourmaline” In spite of this importance, very few systematic geological studies were performed about the BPP in the last fifty years and several important questions remain unsolved or were never addressed, like the classification of the pegmatites based on geochemical techniques and paragenetical properties, comparison with other pegmatite fields, their regional zoned distribution and the identification of the granitic (or other) source. More details about the geology of the area will be discussed by Elton et al (2009) in this issue
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