SPINEL-GROUP MINERAL CHEMISTRY AS A RECORD OF MAGMATIC AND METAMORPHIC PROCESSES: EVIDENCE FROM THE MORRO DO ONÇA KOMATIITES, MINAS GERAIS (BRAZIL)
GUICE, George1, MAGALHÃES, Joana R.2, PINHEIRO, Marco A.P.2, FERREIRA, Raianny C.R.2, MEIRA, Vinícius T.3, MELO-SILVA, Paola de4 and ACKERSON, Michael1, (1)Dept. of Mineral Sciences, National Museum of Natural History, Smithsonian Institution, 10th St. and Constitution Ave. NW., Washington, DC 20560, (2)Geological Survey of Brazil - CPRM, Av Brazil 1731, Belo Horizonte,, 30140-002, Brazil, (3)University of Campinas, Campinas, Brazil, (4)Institute of Geosciences, University of São Paulo, São Paulo, Brazil