| Deposit ID | 10038286 |
|---|---|
| MRDS ID | M045610 |
| Record type | Site |
| Current site name | Passagem De Mariana |
| Alternate or previous names | Marianna, Passagem, Cia. Minas De Passagem, Ore Bodies From Sw To Ne: Fundao, Vale Quemtem Wsw, Sw, Main, Ne,, Barril, Gongo and Jopling |
| Geographic coordinates: | -43.44005, -20.38247 (WGS84) |
|---|---|
| Location accuracy | 500(meters) |
| Relative position | 6 MILES EAST OF OURO PRETO, 3 KM W OF MARIANA |
Political divisions (FIPS codes)
Minas Gerais(province)
Brazil(country)
South America(continent)
Land(continent)
| Country | State |
|---|---|
| Brazil | Minas Gerais |
| Commodity | Importance |
|---|---|
| Gold | Primary |
| Palladium Critical | Secondary |
| Platinum Critical | Secondary |
| Materials | Type of material |
|---|---|
| Chalcopyrite | Ore |
| Galena | Ore |
| Gold | Ore |
| Molybdenite | Ore |
| Pyrite | Ore |
| Pyrrhotite | Ore |
| Wolframite | Ore |
| Actinolite | Gangue |
| Albite | Gangue |
| Ankerite | Gangue |
| Calcite | Gangue |
| Chlorite | Gangue |
| Garnet | Gangue |
| Magnetite | Gangue |
| Quartz | Gangue |
| Rutile | Gangue |
| Sericite | Gangue |
| Tourmaline | Gangue |
| Tremolite | Gangue |
| Xenotime | Gangue |
| Zircon | Gangue |
| Host or associated | Host | ||||
|---|---|---|---|---|---|
| Rock type | Metamorphic Rock > Phyllite | ||||
| Rock unit name | Batatal Formation, Minas Supergroup | ||||
| Rock description | Batatal Formation, Minas Supergroup | ||||
| |||||
| (1) | -43.44005, -20.38247 |
|---|
| Type of structure | Local |
|---|---|
| Structure description | On S Limb Of Mariana Syncline |
| Development status | Past Producer |
|---|---|
| Commodity type | Metallic |
| Significant | No |
| Discovery year | 1675 |
| Year of first production | 1864 |
| District name | Mariana District |
|---|
| Type | Operator |
|---|---|
| Owner | Companhia Minas De Passagem |
| Year | 1988 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Period | To 1988 | ||||||||||||||
| Material | ? | ||||||||||||||
| Description | Cp_Grade: ^8.3 G/T Au | ||||||||||||||
| |||||||||||||||
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| USGS | Mineral Resources Data System | MRDS | M045610 |
GUIMARAES, D., 1965, BOL. 121, MINISTERIO DE MINAS E ENERGIA, P. 388
VIAL, D.S., 1988, A MINA DE OURO DA PASSAGEM MARIANA, SANTA BARBARA, MINAS GERAIS IN SCHOBBENHAUS BRASIL; V. 3, P. 421-430.
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.
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.
CEASAR (1984), VIAL (1988)
| Subject category | Comment text |
|---|---|
| Deposit | BATATAL PHYLLITE RESTS ON MOEDU QUARTZITE AND IS OVERLAIN BY CAUE ITABIRITE. RELATIVELY CONTINUOUS BEDS OF TOURMALINITE IN THE PHYLLITE CONTAIN BEST MINERALIZATION AND ARE RESTRICTED TO A ZONE 5-20 M THICK ALONG 15 KM STRIKE LENGTH. ORE OCCURS IN TWO FORMS AS PYRRHOTITE-BEARING AMPHIBOLITE AND QUARTZ VEINS (90% OF THE ORE). FUNDAO OCCURS IN BANDED CARBONATES; VALE QUEMTEM OCCURS IN SERICITIC PHYELITE OR GRAPHITIC PHYLLITES; WSW, SW, MAIN, AND NE ARE QUARTZ VEINS IN GRAPHITIC PHYLLITE, BARRIL AND GONGO OCCUR BETWEEN QUARTZITE AND ITABINITE; JOPLING IS IN ITABIRITE. |
| Deposit | Discovery Year: END OF 17TH CENTURY |
| Deposit | First Production Year: 1864 (REGISTERED PRODUCTION) |
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 01-MAR-1975 | Balcom, Raymond H. | U.S. Geological Survey | |
| Updater | 01-SEP-1993 | Page, Norman J. | U.S. Geological Survey |
Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.