| Deposit ID | 10005874 |
|---|---|
| MRDS ID | BL10048 |
| Record type | Site |
| Current site name | Inca Mine |
| Geographic coordinates: | -67.19725, -21.10646 (WGS84) |
|---|---|
| Elevation | 4220 |
| Relative position | 1.5 KM SE OF SAN CRISTOBAL |
Political divisions (FIPS codes)
Potosi(province)
Bolivia(country)
South America(continent)
Land(continent)
Federal lands
Federal(land status)
| Country | State |
|---|---|
| Bolivia | Potosi |
| Commodity | Importance |
|---|---|
| Silver | Primary |
| Lead | Secondary |
| Zinc Critical | Secondary |
| Antimony Critical | Tertiary |
| Copper | Tertiary |
| Arsenic Critical | Tertiary |
| Materials | Type of material |
|---|---|
| Chalcopyrite | Ore |
| Polybasite | Ore |
| Silver | Ore |
| Stromeyerite | Ore |
| Barite | Gangue |
| Calcite | Gangue |
| Hematite | Gangue |
| Result | ASSAYS BY VEDIA AND CORTEZ (1966): GRAB SAMPLE 32.2% FE 10G/T AG 1.0% PB |
|---|---|
| Result | 20 CM CHANNEL SAMPLE 8.60% FE 20 G/T AG 1.8% PB |
| Result | USGS ASSAY 5 CM VEIN (1990): 20 G/T AG, 200 PPM AS, 15 PPM BI, 50 PPM CU, 2000 PPM PB, 200 PPM SB, <10 PPM SN, 1000 PPM ZN. |
| Model code | 77 |
|---|---|
| USGS model code | 20b |
| Deposit model name | Sn-polymetallic vein |
| Host or associated | Associated | ||||||
|---|---|---|---|---|---|---|---|
| Rock type | Volcanic Rock (Aphanitic) > Intermediate Volcanic Rock > Andesite | ||||||
| |||||||
| Host or associated | Host |
|---|---|
| Rock type | Sedimentary Rock > Clastic Sedimentary Rock > Sandstone |
| Rock unit name | Potoco |
| Rock description | Potoco |
| (1) | -67.19725, -21.10646 |
|---|
| Type of structure | Regional |
|---|---|
| Structure description | N10w Anticline |
| Type of structure | Local |
| Structure description | Fractures |
| General form | IRREGULAR |
|---|---|
| Strike | N 0 TO 30 W |
| Dip | STEEPLY NE |
| Depth to top | 0M |
| Development status | Producer |
|---|---|
| Commodity type | Metallic |
| Deposit size | Small |
| Significant | No |
| Discoverer | Spanish Colonists |
| Year of last production | 1966 |
| District name | San Cristobal |
|---|
| Ownership category | Federal |
|---|
| Type | Owner-Operator |
|---|---|
| Owner | Empresa Minera Yana Mallcu Sa |
| Year | 1966 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Accuracy | Accurate | ||||||||||||||
| |||||||||||||||
| Type of workings | Underground |
|---|---|
| Length | 25M |
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| USGS | Mineral Resources Data System | MRDS | BL10048 |
VEDIA M., J., AND CORTEZ, G., 1966, INFORME SOBRE ORIENTACION TECNICA MINA DE HIERRO Y PLATA INCA: SERVICIO GEOLOGICO DE BOLIVIA INFORME GB-M-497, 4P., MAP 1:200.
JACOBSON, H.S., AND MURILLO, C., 1969, GEOLOGY AND MINERAL DEPOSITS OF THE SAN CRISTOBAL DISTRICT, VILLA MARTIN PROVINCE, POTOSI, BOLIVIA: U.S. GEOLOGICAL SURVEY BULLETIN 1273, 22P., MAPS.
TORRICO, H., 1966, ESTUDIO GEOLOGICO DE LA REGION DE SAN CRISTOBAL: UNPUBLISHED TESIS DE GRADO, UNIVERSIDAD MAYOR DE SAN ANDRES, FACULTAD DE CIENCIAS GEOLOGICAS
AHLFELD, F., 1944, LA GEOLOGIA DEL MINERAL DE SAN CRISTOBAL DE LIPEZ (BOLIVIA): MINERIA BOLIVIANA, V. 1, N. 8, P. 9-15.
GEOLOGICAL AND GEOCHEMICAL INVESTIGATIONS BY JACOBSON AND MURILLO (1969)
VISITED BY USGS/GEOBOL PERSONNEL MAY, 1990
THESIS BY TORRICO (1966)
GEOLOGICAL INVESTIGATIONS BY VEDIA AND CORTEZ (1966)
CIMRI
VEDIA AND CORTEZ (1966)
| Subject category | Comment text |
|---|---|
| Deposit | VEINS ARE 10 TO 40 CM WIDE |
| Deposit | RECORD INFORMATION ALSO SUPPLIED BY GEOBOL |
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 01-MAY-1990 | Long, Keith R.; Hinojosa, A. | U.S. Geological Survey | |
| Updater | 01-DEC-1990 | Richter, Don (Usgs) | U.S. Geological Survey |
Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.