Commodities
PrimarySilver, Gold
SecondaryPlatinum, Palladium, Copper
Commodity typeM
Deposit
Model276: Homestake Au
Deposit sizeY
Orebody formIRREGULAR AND LINEAR
Ore controlLense Shaped Ore Beds Are Bounded By Schists
Materials
Ore mineralsBornite, Chalcopyrite, Cubanite, Galena, Pyrite, Pyrrhotite, Scheelite, Sphalerite, Stibnite, Tetrahedrite, Wolframite
GangueAnatase, Apatite, Biotite, Calcite, Chlorite, Clinozoisite, Epidote, Fluorite, Gypsum, Ilmenite, Magnetite, Quartz, Rutile, Selenite, Sericite, Siderite, Sphene, Talc, Tourmaline, Zircon
Geology
Host rockSchist,Carbonate,Chert · Lapa Seca Formation
Associated rockMetasedimentary Rock · Engenheiro Correa Group, Granite;Rio Das Vehas Super Group
StructureIn A Complex Antiform With Overturned North Limb
Tectonic settingPrecambrian Shield
AlterationSericitazation, Carbonatization, Chloritization (Inner To Outer Zone)
Economic & production
Development statusProducer
First production1834
Discovery year1825
Identification
Deposit ID10068856
MRDS IDW002125
Alternate namesOre Bodies: Main Ore Body, South Ore Body, Northwest Ore Body, Gamba Ore Body, X Ore Body
RegionSA
Data scoreB
Coordinates-19.94749, -43.84895
References
RIDGE, J.D., 1972, ANNOTATED BIBLIOGRAPHIES OF MINERAL DEPOSITS IN THE WESTERN HEMISPHERECEASAR, P. DE A.B., 1984, PRINCIPIAS DEPOSITOS MINERAIS: CONCEITOS, METODOLOGIA E LISTAGEM IN SCHOBBENHAUS, C., AMEIDA CAMPOS, D., DERZE, G.R., AND ASMUS, H.E., EDS., GEOLOGIA DO BRASIL: BRASILIA, DEPARTAMENTO NACIONAL DA PRODUCAO MINERAL, P. 249-419.ABREU, A.S., DINIZ, H.B., BUENO DO PRADO, M.G. AND SANTOS, S.P., 1988, A MINA DE OURO DE SAO BENTO, SANTA BARBARA, MINAS GERAIS IN SCHOBBENHAUS BRASIL; V. 3, P. 393-411.LADEIRA, E.A., 1991, GENESIS OF GOLD IN QUADRILATERO FERRIFERO, A REMARKABLE CASE OF PERMANENCY, RECYCLING AND INHERITANCE - A TRIBUTE TO DJALMA GUIMARAES, PIERRE ROUTHIER AND HANS RAMBERG: IN BRAZIL GOLD '91 E.A. LADEIRA, ED., BALKEMA ROTTERDAM, P. 11-30.VIEIRA, F.W.R., 1991, TEXTURES AND PROCESSES OF HYDROTHERMAL ALTERATION AND MINERALIZATION IN THE NOVA LIMA GROUP, MINAS GERAIS, BRAZIL, IN BRAZIL GOLD '91, E.A. LADEIRA, ED.: BALKEMA, ROTTERDAM, P. 319-325.GAIR, J.E., 1962, GEOLOGY AND ORE DEPOSITS OF THE NOVA LIMA AND RIO ACIMA QUADRANGLES, MINAS GERAIS, BRASIL: U.S. GEOLOGICAL SURVEY PROFESSIONAL PAPER 341-A, 67 P.WRITTEN COMMUN. FROM A. RANSOME AMERICAN EMBASSY AT RIO DE JANEIRO; ABREV AND OTHERS (1988); CEASAR (1984) FOR AU(1). ABREU AND OTHERS (1988) FOR AU(2) AND ORE COMMENTS.