| Deposit ID | 10086927 |
|---|---|
| MRDS ID | BL10098 |
| Record type | Site |
| Current site name | Escala Mine |
| Alternate or previous names | Crosca |
| Geographic coordinates: | -66.86529, -21.58533 (WGS84) |
|---|---|
| Elevation | 4100 |
| Relative position | 3.5 KM N65 E OF ESTANCIA ESCALA |
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 | Primary |
| Zinc Critical | Primary |
| Copper | Tertiary |
| Materials | Type of material |
|---|---|
| Anglesite | Ore |
| Calamine | Ore |
| Chalcocite | Ore |
| Chalcopyrite | Ore |
| Galena | Ore |
| Jamesonite | Ore |
| Malachite | Ore |
| Semseyite | Ore |
| Sphalerite | Ore |
| Tetrahedrite | Ore |
| Chalcedony | Gangue |
| Kaolinite | Gangue |
| Marcasite | Gangue |
| Pyrite | Gangue |
| Pyrrhotite | Gangue |
| Quartz | Gangue |
| Sericite | Gangue |
| Siderite | Gangue |
| Result | ORE ANALYSES BY GEOBOL (1971): 0 TO 46.1% PB, 0 TO 24.6 DM AG, 0 TO 55.3% ZN, 0 TO 4.6% CU |
|---|
| 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 > Rhyolite | ||||
| |||||
| Host or associated | Host |
|---|---|
| Rock type | Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Rhyolite |
| (1) | -66.86529, -21.58533 |
|---|
| Width | 0.05M |
|---|---|
| Depth to top | 0M |
| Development status | Producer |
|---|---|
| Commodity type | Metallic |
| Significant | No |
| Discoverer | Spanish Colonists |
| District name | Escala |
|---|
| Ownership category | Federal |
|---|
| Type | Operator |
|---|---|
| Owner | Cooperativa Minera |
| Type | Owner |
|---|---|
| Owner | Corporacion Minera De Bolivia (Comibol) |
| Type of workings | Surface/Underground |
|---|---|
| Length | 146M |
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| USGS | Mineral Resources Data System | MRDS | BL10098 |
SERVICIO GEOLOGICO DE BOLIVIA, 1971, MINA ESCALA: PROYECTO LIPEZ-COMIBOL-70 INFORME GE-09, 32P., MAP 1:1,000.
SUGAKI ET AL, 1986, GEOLOGICAL STUDY ON THE ORE DEPOSITS IN THE SUR LIPEZ DISTRICT, BOLIVIA: SCIENCE REPORTS OF THE TOHOKU UNIVERSITY, SRS. 3, V. 16, N. 3, P. 327-352.
UNITED NATIONS DEVELOPMENT PROGRAM, 1989, PROYECTO DE METALES PRECIOSOS, PROVINCIA SUD LIPEZ, DEPARTAMENTO DE POTOSI, BOLIVIA, 23P.
GEOLOGICAL INVESTIGATIONS BY JICA/MMAJ (SUGAKI ET AL, 1986)
GEOLOGICAL INVESTIGATIONS BY UNDP (1989)
VISITED OCT. 5, 1990 BY USGS/GEOBOL
GEOLOGICAL, GEOCHEMICAL AND GEOPHYSICAL INVESTIGATIONS BY GEOBOL (1971)
CIMRI
| Subject category | Comment text |
|---|---|
| Deposit | VEINS ARE 10 CM TO 50 CM WIDE AND ARE FOUND IN TWO MAJOR ZONES THAT TREND N50-55W AND DIP 75-85NE. ZONES ARE UP TO 4 M WIDE AND 500 M LONG. |
| Deposit | GEOCHEMICAL SURVEY: SOIL GEOCHEM FOR PB AND ZN, 1176 SAMPLES IN 1,186,200 SQUARE METER AREA. GEOPHYSICAL SURVEY: 1250 BY 480 M AREA SURVEYED USING GROUND EM (31 LINES IN 744,000 SQ M) ; INFO.SRC : 1 PUB LIT; 2 UNPUB REPT; 3 FIELD OBSERV |
| Deposit | RECORD INFORMATION ALSO SUPPLIED BY GEOBOL |
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 01-MAY-1990 | Long, Keith R.; Camacho, E. | 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.