| Deposit ID | 10005305 |
|---|---|
| MRDS ID | AR15112 |
| Record type | Site |
| Current site name | La Esperanza Mine |
| Alternate or previous names | Includes Esperanza 1, 2, and 3 Claims, Cita Claim, Sol De Manana Claim |
| Geographic coordinates: | -66.65501, -24.68222 (WGS84) |
|---|---|
| Elevation | 3850 |
| Location accuracy | 5000(meters) |
| Relative position | ABOUT 8 KM SE OF SIJES MINING CAMP ON THE EAST FLANK OF THE SIJES RANGE. |
Political divisions (FIPS codes)
Salta(province)
Argentina(country)
South America(continent)
Land(continent)
| Country | State |
|---|---|
| Argentina | Salta |
| Commodity | Importance |
|---|---|
| Boron-Borates | Primary |
| Gypsum-Anhydrite | Tertiary |
| Materials | Type of material |
|---|---|
| Inyoite | Ore |
| Ulexite | Ore |
| Clay | Gangue |
| Gypsum | Gangue |
| Realgar | Gangue |
| Result | ALONSO (1986) REPORTS THAT COLEMANITE BULK MINE RUN ORE AVERAGES 26% B2O3. |
|---|
| Model code | 260 |
|---|---|
| USGS model code | 35b.3 |
| Deposit model name | Lacustrine borates |
| Host or associated | Host | ||||
|---|---|---|---|---|---|
| Rock type | Sedimentary Rock > Clastic Sedimentary Rock > Mudstone | ||||
| Rock unit name | Sijes Formation | ||||
| Rock description | Sijes Formation | ||||
| |||||
| Host or associated | Host |
|---|---|
| Rock type | Volcanic Rock (Aphanitic) > Pyroclastic Rock > Tuff |
| (1) | -66.65501, -24.68222 |
|---|
| Type of structure | Regional |
|---|---|
| Structure description | Pastos Grandes Depression |
| Type of structure | Local |
| Structure description | Faulting, Folds |
| Strike | N-S |
|---|---|
| Dip | 30-40E |
| Length | 3000M |
| Development status | Past Producer |
|---|---|
| Commodity type | Non-metallic |
| Significant | No |
| District name | Serrania De Sijes |
|---|
| Type | Operator |
|---|---|
| Owner | Boroquimica Samicaf |
| First year | 1980 |
| Year | 1980 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Accuracy | Accurate | ||||||||||||||
| |||||||||||||||
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| USGS | Mineral Resources Data System | MRDS | AR15112 |
TURNER, JCM, 1964, DESCRIPCION GEOLOGICA DE LA HOJA 7C-NEVADO DE CACHI: DNGM BOL. 99, P. 78.
SCHALAMUK, ISIDORO, FERNANDEZ, RAUL, AND ETCHEVERRY, RICARDO, 1983, LOS YACIMIENTOS DE MINERALES NO METALIFEROS Y ROCAS DE APLICACION DE LA REGION NOA: SUBSECRETARIA DE MINERIA, ANALES XX, 208 P.
ALONSO, R.N., 1986, OCCURRENCE, STRATIGRAPHIC POSITION, AND GENESIS OF THE BORATE DEPOSITS OF THE PUNA REGION OF ARGENTINA: SALTA, UNIVERSIDAD NACIONAL DE SALTA, UNPUBLISHED PH.D DISSERTATION, 196 P.
CIMRI
DNGM ANALES 20, P. 93
| Subject category | Comment text |
|---|---|
| Deposit | 4-5 BEDS OF COLMENITE AT LA ESPERANZA ARE EACH 0.5-1 M THICK, 150-200 M LONG. THE TOTAL COLEMANITE SECTION IS MORE THAN 37 M THICK. BORATE DEPOSITION PROBABLY OCCURRED OVER A PERIOD OF 300,000 YEARS (ALONSO, 1986). |
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 01-NOV-92 | Long, Keith R. | U.S. Geological Survey | |
| Updater | 01-OCT-93 | Orris, Greta J. | U.S. Geological Survey | |
| Updater | 02-NOV-94 | Orris, Greta J. | U.S. Geological Survey |
Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.