| Brenner, T. L., Teixeira, N. A., Oliveira, J. A. L., Franke, N. D., Thompson, J. F. H. (1990) The O'Toole nickel deposit, Morro do Ferro greenstone belt, Brazil. Economic Geology, 85 (5) 904-920 doi:10.2113/gsecongeo.85.5.904 | Journal (article/letter/editorial) | 1990, pp. 904-920 The O'Toole Nickel Deposit, Morro do Ferro GreenstoneBelt, Brazil T. L. BRENNER,*N. A...J. F. H. THOMPSON BP MineraqtioLtda., Bio de Janeiro,Brazil Abstract The O'Tooleorebodyis the firsts...foundin Brazil. It is in the ArchcanMorro do Ferro greenstonebelt in the southwestpart of Minas Gerais,Brazil...iron-formationhave been defined to date in the O'Toole sequence.The depositis associated with the uppercyclethat...the thinningof the footwallsedimentsbeneaththe O'Toole deposit.This embaymentis postulatedto be primary | | | Journal (article/letter/editorial) | 921-927 Platinum-Group Minerals in the O'Toole (Ni-Cu-Co) Deposit, Brazil CELINA MARIA LEITE MARCHETTO Av...Cdmara, 160-sala 1408, Rio de Janeiro-R J, CEP20020,Brazil Abstract The O'Toole depositis a Cu-Ni-Co sulfidelens...metamorphismand shearing. The main sulfidesof the O'Toole depositare pyrrhotite (po), pentlanditc(pn), and...were identifiedduring microscopy on ore fromthe O'Toole deposit.Mineralidentifications were madeandconfirmedby...THE O'Toole depositwasdiscoveredin 1983 by BP Minera•5o Ltda. It is situated in the Fortaleza de Minasdistrictof |
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