| Deposit ID | 10068994 |
|---|---|
| MRDS ID | W002276 |
| Record type | Site |
| Current site name | Mina Grande |
| Geographic coordinates: | -44.21093, -15.04072 (WGS84) |
|---|---|
| Location accuracy | 5000(meters) |
| Relative position | ABOUT 11 KM WNW OF ITACARAMBI. |
Political divisions (FIPS codes)
Minas Gerais(province)
Brazil(country)
South America(continent)
Land(continent)
| Country | State |
|---|---|
| Brazil | Minas Gerais |
| Commodity | Importance |
|---|---|
| Lead | Primary |
| Zinc Critical | Primary |
| Copper | Secondary |
| Materials | Type of material |
|---|---|
| Anglesite | Ore |
| Bornite | Ore |
| Chalcocite | Ore |
| Chalcopyrite | Ore |
| Descloizite | Ore |
| Galena | Ore |
| Malachite | Ore |
| Pyrite | Ore |
| Smithsonite | Ore |
| Sphalerite | Ore |
| Willemite | Ore |
| Barite | Gangue |
| Calcite | Gangue |
| Chalcedony | Gangue |
| Dolomite | Gangue |
| Fluorite | Gangue |
| Quartz | Gangue |
| Result | CHIP SAMPLE: 25.4% PB, 26.1% ZN |
|---|---|
| Result | GRAB SAMPLE: 15.3% PB, 26.7% ZN. |
| Host or associated | Host | ||||||
|---|---|---|---|---|---|---|---|
| Rock type | Sedimentary Rock > Carbonate > Dolomite | ||||||
| Rock unit name | Bambui Group | ||||||
| Rock description | Bambui Group | ||||||
| |||||||
| (1) | -44.21093, -15.04072 |
|---|
| Name | SOUTH SPLIT |
|---|---|
| Strike | N20W}N70W |
| Dip | }STEEP |
| Thickness | 10M |
| Length | 50M |
| Name | MAIN FRACTURE ZONE |
|---|---|
| Dip | }STEEP |
| Thickness | 15M |
| Length | 180M |
| Development status | Past Producer |
|---|---|
| Commodity type | Metallic |
| Significant | No |
| Discovery year | 1938 |
| District name | 650 M |
|---|
| Type | Owner-Operator |
|---|---|
| Owner | Capitao Lelio Graca ) |
| First year | 1939 |
| Type | In-situ | |||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Estimate year | 1957 | |||||||||||||||||||||
| ||||||||||||||||||||||
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| USGS | Mineral Resources Data System | MRDS | W002276 |
R.H. NAGELL AND M.G. WHITE, 1974, LEAD-ZINC RESOURCES IN BRAZIL
ROBERTSON, J.F., 1963, GEOLOGY OF THE LEAD-ZINC DEPOSITS IN THE MUNICIPIO DE JANUARIA, STATE OF MINAS GERAIS, BRAZIL: U.S. GEOLOGICAL SURVEY BULLETIN 1110-B, 110 P.
| Subject category | Comment text |
|---|---|
| Deposit | FRACTURE ZONE (DEPOSIT 0). ZONE BIFURCATES AT WEST END. OVER AND NEAR MINERALIZED ZONE ARE MANTO-LIKE MASSES OF SILICA (350 SQ METERS, 1 M THICK); SILICIFICATION OF 6000 SW METERS AND UP TO 5 M THICK. |
| Deposit | AGE OF THE ORE IS NOT AVAILABLE. |
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 01-APR-74 | Warfle, Thomas M. | U.S. Geological Survey | |
| Updater | 01-AUG-94 | Page, Norman J. | U.S. Geological Survey |
Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.