| Deposit ID | 10068811 |
|---|---|
| MRDS ID | W002067 |
| Record type | Site |
| Current site name | Colquechaca Mine |
| Geographic coordinates: | -66.01612, -18.69762 (WGS84) |
|---|---|
| Elevation | 4100 |
| Relative position | 2 KMS NORTH OF TOWN OF COLQUECHACA |
Political divisions (FIPS codes)
Potosi(province)
Bolivia(country)
South America(continent)
Land(continent)
Federal lands
Federal(land status)
| Country | State |
|---|---|
| Bolivia | Potosi |
| Commodity | Importance |
|---|---|
| Tin Critical | Primary |
| Lead | Secondary |
| Silver | Secondary |
| Zinc Critical | Tertiary |
| Cadmium | Tertiary |
| Materials | Type of material |
|---|---|
| Cassiterite | Ore |
| Galena | Ore |
| Sphalerite | Ore |
| Stannite | Ore |
| Marcasite | Gangue |
| Pyrite | Gangue |
| Quartz | Gangue |
| Model code | 77 |
|---|---|
| USGS model code | 20b |
| Deposit model name | Sn-polymetallic vein |
| Host or associated | Associated |
|---|---|
| Rock type | Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Latite |
| Host or associated | Host |
|---|---|
| Rock type | Sedimentary Rock > Clastic Sedimentary Rock > Sandstone |
| (1) | -66.01612, -18.69762 |
|---|
| Type of structure | Regional |
|---|---|
| Structure description | Sedimentary Rocks Folded Into Nw-Se Trending Anticline |
| Type of structure | Local |
| Structure description | Brecciation Probably As A Result Of Intramineral Movements |
| General form | TABULAR, STOCK |
|---|---|
| Length | 2000M |
| Width | 2M |
| Depth to bottom | 550M |
| Development status | Producer |
|---|---|
| Commodity type | Metallic |
| Deposit size | Small |
| Significant | No |
| Discovery year | 1725 |
| Discoverer | Natives |
| Year of first production | 1700 |
| Ownership category | Federal |
|---|
| Type | Operator |
|---|---|
| Owner | Empresa Minera De Quechisla (Comibol) |
| Type | Owner |
|---|---|
| Owner | Corporacion Minera De Bolivia |
| Type of workings | Underground |
|---|---|
| Overall depth | 550M |
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| USGS | Mineral Resources Data System | MRDS | W002067 |
AHLFELD, F., 1938, DIE SILBER - ZINNERZLAGERSTAETTE COLQUECHACA, BOLIVIEN; NEUES JHRBLE MIN. A, BB 74A, PP. 466-49A F2 AHLFELD, F., AND SCHEIDER-SCHERBINA, A., 1964, LOS YACIMIENTOS MINERALES Y DE HIDROCARBUROS: DEPTO. NAC. GEOLOGIA, BOL. 5 (ESPECIAL), PP. 187-191.
AHLFELD, F., AND SCHNEIDER-SCHERBINA, A., 1964, LOS YACIMIENTOS MINERALES Y DE HIDROCARBUROS DE BOLIVIA: BOLIVIA DEPARTMENTO NACIOAL DE GEOLOGIA BOL. 5.
THORMANN, W., LJUNDGREN, P., AND VIRREIRA, M., 1966, INVESTIGACIONES PRELIMINARES SOBRE LA GEOTECTONICA Y MATALOGENESIS DE LA ZONA CHALLAPATA - CAXATA, BOLIVIA: SERV. GEOL. BOL., BOL. 7, 118 P.
CARLAT, E., 1964, PRELIMINARY GEOLOGIC REPORT ON THE COLQUECHACA MINES, PROVINCE OF CHAYANTA: INFORME NO. 1934, COMIBOL.
CARO, E., 1970, ESTUDIO GEOLOGICO MINA COLQUECHACA: PARTE 2 - GEOLOGIA ECONOMICA, INFORME NO. SGG-37/70, COMIBOL.
CORVERA, O., 1970, INFORME SOBRE ESTUDIO DE PROPIEDADES MINERAS EN COLQUECHACA: INFORME NO. SGG-63/70, COMIBOL.
AHLFELD, F., 1938, DIE SILBER - ZINNERZ LAGERSTAETTE COLQUECHACA, BOLIVIEN: NEUES JAHRB. MIN. A, BB 74A, PP. 466-492
MINISTRY OF MINES AND METALLURGY, 1971
| Subject category | Comment text |
|---|---|
| Deposit | First Production Year: SILVER SINCE EARLY 1700, TIN SINCE 1912 |
| Deposit | Discovery Year: KNOWN SINCE 1863 |
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 01-MAY-1973 | Irving, Earl M. | U.S. Geological Survey | |
| Updater | 01-JUN-1978 | Urquidi-Barrau, Fernando | U.S. Geological Survey |
Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.