| Deposit ID | 10049058 |
|---|---|
| MRDS ID | MX00273 |
| Record type | Site |
| Current site name | El Tungsteno |
| Related records | 10182846 |
| Geographic coordinates: | -109.61729, 28.33357 (WGS84) |
|---|---|
| Relative position | ABOUT 5 KM FROM LA DURA, ON THE EAST SIDE OF THE ROAD TO CUIDAD OBREGON. |
Political divisions (FIPS codes)
Pima(county)
Arizona(state)
United States(country)
North America(continent)
Land(continent)
| Country | State |
|---|---|
| Mexico | Sonora |
| Commodity | Importance |
|---|---|
| Tungsten Critical | Primary |
| Materials | Type of material |
|---|---|
| Scheelite | Ore |
| Epidote | Gangue |
| Feldspar | Gangue |
| Magnetite | Gangue |
| Muscovite | Gangue |
| Quartz | Gangue |
| Model code | 45 |
|---|---|
| USGS model code | 15 |
| Deposit model name | W pegmatite |
| Host or associated | Associated | ||
|---|---|---|---|
| Rock type | Plutonic Rock > Granitoid > Granite | ||
| |||
| Host or associated | Host |
|---|---|
| Rock type | Plutonic Rock > Pegmatite |
| (1) | -109.61729, 28.33357 |
|---|
| Development status | Past Producer |
|---|---|
| Commodity type | Metallic |
| Deposit size | Small |
| Significant | No |
| District name | La Dura |
|---|
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| USGS | Mineral Resources Data System | MRDS | MX00273 |
WIESE, JOHN H., AND CARDENAS, SALVADOR, 1945, TUNGSTEN DEPOSITS OF THE SOUTHERN PART OF SONORA, MEXICO: USGS BULL 946, P. 103-130
| Subject category | Comment text |
|---|---|
| Deposit | THREE DISCONTINUOUS PARALLEL PEGMATITE DIKES STRIKE N AND FORM LOW STEEP-SIDED RIDGES SEPARATED BY NARROW GRAVEL-FLOORED WASHES. AT WEST END OF CLAIM QUARTZITE CAPS MESA A FEW M ABOVE LEVEL OF MINERALIZED DIKES. PEGMATITES COMPOSED OF FELDSPAR, QUARTZ, EPIDOTE, AMPHIBOLE, MUSCOVITE, SCHEELITE, AND MAGNETITE, ALL MED. GRAINED. NUMEROUS VUGS LINED WITH COARSE INTERGROWN CRYSTALS OF QUARTZ, FELDSPAR, AND SCHEELITE. SOME SCHEELITE PRESENT IN SOIL MANTLE ON HILLSIDES BELOW OUTCROPS AND IN SCATTERED THROUGHOUT GRAVEL OF THE ARROYOS, BUT RICHEST CONCENTRATION IS IN A THIN LAYER A FEW CM JUST ABOVE BEDROCK AT THE BASE OF THE GRAVEL. GRAVEL IS UP TO 2 M THICK AT THE CENTER OF THE CHANNEL. THE PEGMATITE LENSES TOO SMALL AND DISCONTINUOUS TO BE MINED PROFITABLY ON A LARGE SCALE. |
| Deposit | TOTAL PRODUCTION OF THE DISTRICT TO MAY 1943 ESTIMATED AT 30 TONS OF CONC. CONTAINING 55% WO3, MAINLY FROM PLACERS. AT THE SAN MARCIAL AND LA ZOILA PROSPECTS JUST S OF EL TUNGSTENO, SMALL AMOUNTS OF SCHEELITE WAS REPORTEDLY MINED FROM SCATTERED PLACER DEPOSITS, BUT NO ECONOMICALLY WORKABLE BEDROCK DEPOSITS WERE NOTED. DISTRICT HAS BEEN THOROUGHLY PROSPECTED. ; INFO.SRC : 1 PUB |
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 01-JUL-1987 | Staude, John-Mark G. (Page, Norman J.) | U.S. Geological Survey | |
| Updater | 01-OCT-1987 | Leonard, Kenneth R. | U.S. Geological Survey |
Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.