Description
Mineracao Serra Grande Ltd (Inco And Kennecott). Mineralsul (Inco Gold, Brazil)
Commodities
PrimaryGold
Commodity typeM
Deposit
Deposit sizeY
Orebody formTABULAR, LENTICULAR
Ore controlTight Folding
Materials
Ore mineralsChalcopyrite, Galena, Gold, Pyrrhotite, Scheelite
GangueChlorite, Garnet, Magnetite, Quartz, Sericite, Tourmaline
Geology
Host rockSchist,Dolomite · Ribeirao Das Antas Formation, Pillar De Goias Group;Ribeirao Das Antas Formation, Pillar De Goias Group
Associated rockAmphibolite,Volcanic Rock (Aphanitic),Mafic Volcanic Rock · Rio Vermelho Formation, Pillar De Goias Group;Corego Alayadinho Formation, Pillar De Goias Group
Tectonic settingGreenstone Belt
AlterationCarbonatization, Sericitization, Silicification, Sulfidization. Fervoan Dolomite Schist Is Alteration Product Of Amphibolite, Sercite-Chlorite Schist Probably Is Also. Quartz Commented Graphitic Pelite Is Alteration Product Of Graphitic Pelite. Carbonatization, Sericitization And Silicification Are Indicated.
Economic & production
Development statusProducer
First production1988
Last production1991
Discovery year1974
Identification
Deposit ID10056540
MRDS IDTC00581
Alternate namesOcorrecia Da Fazenda Do Prefeito, Mina Iii
RegionSA
Data scoreB
Coordinates-14.53188, -50.28355
References
ELEVATORSKI, E.A., 1988, WORLD GOLD; MINES-DEPOSITS-DISCOVERIES; VOL. I., NORTH, CENTRAL AND SOUTH AMERICA: MINOBRAS MINING SERVICES, 156 P.BRANCO, PAULO CESAR DE AZEVEDO, 1984, PRINCIPAIS DEPOSITOS MINERAIS: CONCEITOS METODOLOGIA E LISTAGEM, IN DEPT. NACIONAL DA PRODUCAO MINERAL, GEOLOGIA DO BRASIL, TEXTO EXPLICATIVO DO MAPA GEOLOGICO DE BRASIL E DA AREA OCEANICA ADJACENTE INCLUINDO DEPOSITOS MINERAIS: DEPT. NACIONAL DA PRODUCAO MINERAL, P. 359-419.THOMSON, M.L., AND FYFE, W.S., 1990, THE CRIXAS GOLD DEPOSIT, BRAZIL: THRUST-RELATED. POSTPEAK METAMORPHIC GOLD MINERALIZATION OF POSSIBLE BRASILINO CYCLE AGE: ECONOMIC GEOLOGY, VOL. 85, P. 928-942.YAMAKOA, W.N., AND ARAUJO, E.M., 1988, DEPOSITO DE OURO DE MINA III, CRIXAS, GOIAS, IN PRINCIPAIS DEPOSITOS MINERAIS DO BRASIL, EDS. C. SCHOBBNEHAUS AND C.E.S. COELHO: MINISTERIO DAS MINAS E ENERGIA, BRASILIA, V. III, P. 491-498.THOMPSON, M.C., 1986, PETROLOGY OF THE CRIXAS GOLD DEPOSIT, BRAZIL: EVIDENCE FOR GOLD ASSOCIATED WITH HYDROTHERMAL ALTERATION, SUBSEQUENT TO METAMORPHISM IN A. JAMES MACDONALD, ED., GOLD 86: AN INTERNATIONAL SYMPOSIUM ON THE GEOLOGY OF GOLD DEPOSITS, PROCEEDINGS VOLUME, TORONTO, P. 284-296.CIMRI