| Deposit ID | 10107279 |
|---|---|
| MRDS ID | W006955 |
| Record type | Site |
| Current site name | Cuatro Palmas Fluorspar Deposit |
| Related records | 10182540 |
| Geographic coordinates: | -102.33932, 29.29746 (WGS84) |
|---|---|
| Elevation | 1280 |
| Relative position | 130 AIR KM SE OF MARATHON, TEXAS. ABOUT 30 KM EAST OF BIG BEND NATIONAL PARK, TEXAS, AND SEVERAL KILOMETERS NW OF AGUACHILE. |
Political divisions (FIPS codes)
Pima(county)
Arizona(state)
United States(country)
North America(continent)
Land(continent)
USGS map quadrangles
Boquillas(quadrangle 1:100,000 scale)
Emory Peak(quadrangle 1:250,000 scale)
| Country | State |
|---|---|
| Mexico | Coahuila De Zaragoza |
| Commodity | Importance |
|---|---|
| Fluorine-Fluorite Critical | Primary |
| Materials | Type of material |
|---|---|
| Fluorite | Ore |
| Calcite | Gangue |
| Quartz | Gangue |
| Result | CAF2 - 70% |
|---|---|
| Result | CACO3 - 18% |
| Result | SIO2 - 5% |
| Result | OTHER - 7% (MCANULTY, 1963, P. 741) |
| Host or associated | Associated | ||||||
|---|---|---|---|---|---|---|---|
| Rock type | Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Rhyolite | ||||||
| |||||||
| Host or associated | Host |
|---|---|
| Rock type | Sedimentary Rock > Carbonate > Limestone |
| Rock unit name | Georgetown Limestone |
| Rock description | Georgetown Limestone |
| (1) | -102.33932, 29.29746 |
|---|
| Type of structure | Regional |
|---|---|
| Structure description | Nw-Trending Synclinorium Bounded On The Ne By The Serranias Del Burro And On The Sw By The Sierra Del Carmen |
| Type of structure | Local |
| Structure description | Cuatro Palmas Dome And Rhyolite Dike |
| General form | IRREGULAR (INVERTED CONE) |
|---|---|
| Length | 90M |
| Width | 90M |
| Depth to top | 0M |
| Development status | Producer |
|---|---|
| Commodity type | Non-metallic |
| Deposit size | Medium |
| Significant | No |
| Year of first production | 1953 |
| District name | Pico Etero District |
|---|
| Type | Operator |
|---|---|
| Owner | La Domincia, Sa |
| Type | Owner |
|---|---|
| Owner | La Domincia, Sa (49% Owned By E. I. Dupont De Nemours And Co. Inc.) |
| Type of workings | Surface |
|---|---|
| Area | 0.64HA |
| Overall length | 82.3M |
| Overall width | 90M |
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| USGS | Mineral Resources Data System | MRDS | W006955 |
PICKARD, G.W., 1974, GEOLOGY OF MEXICAN FLUORSPAR DEPOSITS, IN HUTCHESON, D.W., ED., A SYMPOSIUM ON THE GEOLOGY OF FLUORSPAR: KENTUCKY GEOLOGICAL SURVEY SPECIAL PUBLICATION 22, P. 23-30.
VAN ALSTINE, R.E., 1963, INVESTIGATION OF THE PRINCIPAL FLUORSPAR DISTRICTS OF MEXICO: U.S. GEOLOGICAL SURVEY OPEN-FILE REPORT 688, P. 52-57.
1960 GEOLMAP MC ANULTY, W. N. (DOW CHEMICAL CO.
CIMRI
PICKARD, 1974.
| Subject category | Comment text |
|---|---|
| Deposit | DEPOSIT IS LOCALIZED ALONG THE FAULTED CONTACT OF A 1.8 KM RHYOLITE DIKE AND STRONGLY BRECCIATED GEORGETOWN LIMESTONE. THE DEPOSIT IS IN THE SHAPE OF AN INVERTED CONE THAT HAS A 90-M DIAMETER ON THE OUTCROP. MINERALIZATION PROBABLY OCCURRED IN SEVERAL STAGES, WITH A RHYTHMIC REPLACEMENT OF THE LIMESTONE AND BY DIRECT PRECIPITATION IN VOIDS. |
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 01-JUL-1975 | Schruben, Paul G. | U.S. Geological Survey | |
| Updater | 01-AUG-1991 | Orris, Greta J. | U.S. Geological Survey | |
| Updater | 04-JAN-1995 | Orris, Greta J. | U.S. Geological Survey |
Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.