Rare earth elements and Sm-Nd isotopes in a granulite facies metagabbro from Guaxupé, Minas Gerais, Brazil, and the nature of the mantle source - Choudhuri, Asit; Barrueto, Héctor Rolando; Haack, Udo; Janasi, Valdecir de Assis (Congresso Brasileiro de Geologia, 1998)