| Deposit ID | 10068792 |
|---|---|
| MRDS ID | W002043 |
| Record type | Site |
| Current site name | Matilde Mine |
| Geographic coordinates: | -68.93286, -15.76439 (WGS84) |
|---|---|
| Elevation | 4600 |
| Relative position | 12 KMS NE OF ANCORAIMES, E. SIDE OF LAKE TITICACA. |
Political divisions (FIPS codes)
La Paz(province)
Bolivia(country)
South America(continent)
Land(continent)
Federal lands
Federal(land status)
| Country | State |
|---|---|
| Bolivia | La Paz |
| Commodity | Importance |
|---|---|
| Zinc Critical | Primary |
| Lead | Secondary |
| Silver | Secondary |
| Cadmium | Tertiary |
| Copper | Tertiary |
| Materials | Type of material |
|---|---|
| Chalcopyrite | Ore |
| Galena | Ore |
| Sphalerite | Ore |
| Pyrite | Gangue |
| Siderite | Gangue |
| Host or associated | Host | ||
|---|---|---|---|
| Rock type | Metamorphic Rock > Schist | ||
| Rock unit name | Catavi;Pampa | ||
| Rock description | Catavi;Pampa | ||
| |||
| Host or associated | Host |
|---|---|
| Rock type | Sedimentary Rock > Clastic Sedimentary Rock > Sandstone |
| (1) | -68.93286, -15.76439 |
|---|
| Type of structure | Regional |
|---|---|
| Structure description | Nw-Se ; Mild Metamorphism |
| Type of structure | Local |
| Structure description | Strong Folds |
| General form | TABULAR, LINEAR |
|---|---|
| Strike | N 23 E |
| Dip | VERTICAL |
| Length | 500M |
| Width | 7M |
| Depth to bottom | 465M |
| Development status | Producer |
|---|---|
| Commodity type | Metallic |
| Deposit size | Large |
| Significant | No |
| Discovery year | 1640 |
| Discoverer | Native Ancoraines |
| Year of first production | 1926 |
| Production years | 1972 |
| Ownership category | Federal |
|---|
| Type | Operator |
|---|---|
| Owner | Comibol |
| First year | 1972 |
| Type | Owner |
|---|---|
| Owner | Comibol |
| First year | 1971 |
| Type of workings | Underground |
|---|---|
| Overall depth | 470M |
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| USGS | Mineral Resources Data System | MRDS | W002043 |
AHLFELD, F., AND SCHEIDER-SCHERBINA, A., 1964, LOS YACIMIENTOS MINERALES Y DE HIDROCARBUROS: DEPTO. NAC. DE GEOLOGIA, BOL. 5 (ESPECIAL) 383 P.
WIELER, A., 1973, PRELIMINARY DATA ON THE INTERMEDIATE ZONE AT MATILDE-MARAUILLAS. NO. S66-1/73-COMIBOL.
MURIEL, C., 1973, GEOLOGICAL AND MINERALOGICAL DATA ON THE MATILDE-TOMASEMIL CONCESSION. NO. S66-31/73-COMIBOL.
HINO JOSA, A., 1974, GEOLOGICAL STUDY OF THE MATILDEMINE. NO. S66-23/74-COMIBOL.
SANDOVAL, L., 1974, GEOLOGICAL DATA ON THE INTERMEDIATE ZONE OF THE MATILDE MINE. NO. S66-60YS1/74-COMIBOL.
MINISTRY OF MINES AND METALLURGY, 1971
| Subject category | Comment text |
|---|---|
| Deposit | THERE ARE TWO SYSTEMS OF VEINS: PRIMARY AND SECONDARY. PRIMARY VEINS - MARAVILLAS, SANTA ROSA, MARIA LUCIA, SANTA- ANA, LUCIANO, WITH STRIKE N 3 TO 30 E, DIP 80 TO 90 E. -SECONDARY VEINS - AURORA AND 4 AMIGOS, WITH STRIKE N 20 TO 30 W AND VERTICAL DIP. MINERALIZATION FOUND ONLY IN LOWER PALEOZOIC SEDIMENTS AND HAS NO EVIDENT RELATION TO LOCAL INTRUSIVES. MINERALIZATION IS STRIKINGLY UNIFORM ALONG STRIKE AND DIP. |
| Deposit | First Production Year: 1926; OPERATED 1956-62; REINITIATED IN 1972 |
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 01-MAY-1973 | Irving, Earl M. | U.S. Geological Survey | |
| Updater | 01-MAY-1978 | Urquidi-Barrau, Fernando | U.S. Geological Survey |
Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.