| Deposit ID | 10107374 |
|---|---|
| MRDS ID | W031461 |
| Record type | Site |
| Current site name | Chojlla Mine |
| Geographic coordinates: | -67.77589, -16.39492 (WGS84) |
|---|---|
| Elevation | 2600 |
| Relative position | 5 KM N 120 W OF TOWN OF YANACACHI |
Political divisions (FIPS codes)
La Paz(province)
Bolivia(country)
South America(continent)
Land(continent)
Federal lands
Federal(land status)
| Country | State |
|---|---|
| Bolivia | La Paz |
| Materials | Type of material |
|---|---|
| Ferberite | Ore |
| Wolframite | Ore |
| Apatite | Gangue |
| Fluorite | Gangue |
| Muscovite | Gangue |
| Pyrite | Gangue |
| Pyrrhotite | Gangue |
| Quartz | Gangue |
| Result | AVERAGE COMBINED ORE CONTAINS 1.7 % SN + WO3 |
|---|
| Model code | 46 |
|---|---|
| USGS model code | 15a |
| Deposit model name | W veins |
| Host or associated | Associated | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Rock type | Plutonic Rock > Granitoid > Quartz Monzonite | ||||||||
| |||||||||
| Host or associated | Associated | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Rock type | Plutonic Rock > Mafic Intrusive Rock > Diorite | ||||||||
| Rock unit name | Taquesi-Mururata Batholith | ||||||||
| Rock description | Taquesi-Mururata Batholith | ||||||||
| |||||||||
| Host or associated | Associated | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Rock type | Plutonic Rock > Pegmatite | ||||||||
| |||||||||
| Host or associated | Host |
|---|---|
| Rock type | Metamorphic Rock > Hornfels |
| Rock unit name | Choquecata Quartzites;Luturani Slates And Phyllites;Mururata Schists;Aceromarca Slates & Quartzites |
| Rock description | Choquecata Quartzites;Luturani Slates And Phyllites;Mururata Schists;Aceromarca Slates & Quartzites |
| Host or associated | Host |
|---|---|
| Rock type | Metamorphic Rock > Metasedimentary Rock > Quartzite |
| Host or associated | Host |
|---|---|
| Rock type | Metamorphic Rock > Schist |
| (1) | -67.77589, -16.39492 |
|---|
| General form | TABULAR, LENTICULAR |
|---|---|
| Strike | N 30 W |
| Dip | 65 SW |
| Length | 1000M |
| Width | 1.5M |
| Depth to bottom | 390M |
| Development status | Producer |
|---|---|
| Commodity type | Metallic |
| Deposit size | Large |
| Significant | No |
| District name | Yanacachi Mining District |
|---|
| Ownership category | Federal |
|---|
| Type | Operator |
|---|---|
| Owner | Estalsa |
| Type | Owner |
|---|---|
| Owner | International Mining Corp. |
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| USGS | Mineral Resources Data System | MRDS | W031461 |
AHLFELD, F., AND SCHNEIDER-SCHERBINA, A., 1964, LOS YACIMIENTOS MINERALES Y DE HIDROCARBUROS DE BOLIVIA: BOLIVIA DEPARTAMENTO NACIONAL DE GEOLOGIA BOL. 5, PP. 78-83.
AHLFELD'S TEXT, P. 83.
| Subject category | Comment text |
|---|---|
| Deposit | THIS MINE IS THE MOST IMPORTANT TUNGSTEN PRODUCER IN BOLIVIA. ; INFO.SRC : 1 PUB LIT |
| Deposit | VEINS ARE LOCATED IN THE COUNTRY ROCKS 8 KM EAST OF THE CONTACT BOUNDRY OF THE BATHOLITH. |
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 01-JUN-1978 | Urquidi-Barrau, Fernando | U.S. Geological Survey | |
| Updater | 01-AUG-1981 | Ericksen, George E. (Rowe, William D.) | Department of State |
Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.