Geochemical signatures of metasedimentary rocks of high-pressure granulite facies and their relation with partial melting: Carvalhos Klippe, Southern Brasília Belt, Brazil - Cioffi, Cauê Rodrigues; Campos Neto, Mario da Costa; Rocha, Brenda Chung da; Moraes, Renato de; Henrique-Pinto, R. (Journal of South American Earth Sciences, 2012)