| Deposit ID | 10049190 |
|---|---|
| MRDS ID | MX00442 |
| Record type | Site |
| Current site name | El Brasil |
| Related records | 10239783 |
| Geographic coordinates: | -112.58933, 30.74098 (WGS84) |
|---|
Political divisions (FIPS codes)
Pima(county)
Arizona(state)
United States(country)
North America(continent)
Land(continent)
| Country | State |
|---|---|
| Mexico | Sonora |
| Commodity | Importance |
|---|---|
| Antimony Critical | Primary |
| Model code | 180 |
|---|---|
| USGS model code | 27d |
| Deposit model name | Simple Sb (veins, pods, etc) |
| Host or associated | Host | ||||
|---|---|---|---|---|---|
| Rock type | Sedimentary Rock > Clastic Sedimentary Rock > Siltstone | ||||
| Rock unit name | Monos Formation | ||||
| Rock description | Monos Formation | ||||
| |||||
| Host or associated | Host |
|---|---|
| Rock type | Sedimentary Rock > Clastic Sedimentary Rock > Sandstone |
| (1) | -112.58933, 30.74098 |
|---|
| Type of structure | Local |
|---|---|
| Structure description | Premineral Fault: N 0-20 E, 25-60 E. |
| Strike | N 55 W |
|---|---|
| Dip | 38-50 SW |
| Thickness | 0.03M |
| Length | 140M |
| Width | 15M |
| Development status | Past Producer |
|---|---|
| Commodity type | Metallic |
| Deposit size | Small |
| Significant | No |
| District name | El Antimonio/La Montana |
|---|
| Type of workings | Underground |
|---|---|
| Overall depth | 20M |
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| USGS | Mineral Resources Data System | MRDS | MX00442 |
WHITE, D.E. AND GUIZA, REINALDO, 1949, ANTIMONY DEPOSITS OF EL ANTIMONIO DISTRICT, SONORA, MEXICO: U.S. GEOLOGICAL SURVEY BULLETIN 962-B, P.98-99, PLATE 15
WHITE AND GUIZA, 1949.
| Subject category | Comment text |
|---|---|
| Deposit | TWO PARALLEL VEINS, 40 M AND 140 M LONG, IN RED AND GRAY SILTSTONE, SEPARATED BY ABOUT 10 M OF MASSIVE GRAY SANDSTONE. CONFORMABLE TO BEDDING. LONGER VEIN IS CUT NEAR ITS NW END BY THIRD VEIN OCCUPYING PREMINERAL FAULT ZONE STRIKING N 0-20 E AND DIPPING 25-60 E. FAULT HAS BEEN MINERALIZED FOR A DISTANCE OF 60 M. AVERAGE WIDTH OF VEINS IN STOPES: AT LEAST 30 CM. UNMINED PORTIONS OF VEINS ARE ABOUT 10 CM WIDE. MOST ORE WAS TAKEN FROM 140 M VEIN. |
| Deposit | 1943 ASSESSMENT CONCLUDED THAT PROBABLE UNDISCOVERED ORE EXISTED AT DEPTH, BASED ON LIKELIHOOD THAT THE DIPS OF THE VEINS FLATTEN WITH DEPTH AND THE PROBABILITY THAT THE MAIN VEIN INTERSECTS THE CROSS-CUTTING NE VEIN. ; INFO.SRC : 1 PUB |
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 01-DEC-1987 | Leonard, Kenneth R. (Page, Norman J.) | U.S. Geological Survey |
Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.