Mine detail: Morro Velho Mine

Previously called 'Ore Bodies: Main Ore BodySouth Ore BodyNorthwest Ore BodyGamba Ore BodyX Ore Body'

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Location

Lat / long: -19.94749, -43.84895

Resource(M)

Primary: Silver, Gold
Secondary: Platinum, Palladium, Copper
Ore: Bornite, Chalcopyrite, Cubanite, Galena, Pyrite, Pyrrhotite, Scheelite, Sphalerite, Stibnite, Tetrahedrite, Wolframite
Gangue: Anatase, Apatite, Biotite, Calcite, Chlorite, Clinozoisite, Epidote, Fluorite, Gypsum, Ilmenite, Magnetite, Quartz, Rutile, Selenite, Sericite, Siderite, Sphene, Talc, Tourmaline, Zircon
Orebody form: IRREGULAR AND LINEAR
Discovery year: 1825

Production

Operation type: Unknown
Production size: Yes
Development status: Producer
First production started: 1834

Geology

Host rock:Lapa Seca Formation
Host type:Schist,Carbonate,Chert
Associated rock:Engenheiro Correa Group, Granite;Rio Das Vehas Super Group
Associated type:Metasedimentary Rock
Structure:In A Complex Antiform With Overturned North Limb
Tectonic:Precambrian Shield
Alteration processes:Sericitazation, Carbonatization, Chloritization (Inner To Outer Zone)

References

MRDSW002125
DEP10068856
Reference{Deposit:: RIDGE, J.D., 1972, ANNOTATED BIBLIOGRAPHIES OF MINERAL DEPOSITS IN THE WESTERN HEMISPHERE}{Deposit:: CEASAR, 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.}{Deposit:: 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.}{Deposit:: 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*1 E.A. LADEIRA, ED., BALKEMA ROTTERDAM, P. 11-30.}{Deposit:: VIEIRA, F.W.R., 1991, TEXTURES AND PROCESSES OF HYDROTHERMAL ALTERATION AND MINERALIZATION IN THE NOVA LIMA GROUP, MINAS GERAIS, BRAZIL, IN BRAZIL GOLD*1, E.A. LADEIRA, ED.: BALKEMA, ROTTERDAM, P. 319-325.}{Deposit:: 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.}{Production:: 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.}
ReporterWarfle, Thomas M., Page, Norman J.