| Deposit ID | 10037369 |
|---|---|
| MRDS ID | M032068 |
| Record type | Site |
| Current site name | Bradshaw Mine |
| Related records | 10173792 |
| Geographic coordinates: | -114.3114, 38.44856 (WGS84) |
|---|---|
| Relative position | 1 1/2 MILES SE OF ATLANTA |
Political divisions (FIPS codes)
Lincoln(county)
Nevada(state)
United States(country)
North America(continent)
Land(continent)
USGS map quadrangles
Atlanta(quadrangle 1:24,000 scale)
Wilson Creek Range(quadrangle 1:100,000 scale)
Lund(quadrangle 1:250,000 scale)
Hydrologic units (watersheds)
Spring-Steptoe Valleys(hydrologic unit)
Central Nevada Desert Basins(hydrologic accounting unit)
Central Nevada Desert Basins(hydrologic subregion)
Great Basin(hydrologic region)
Federal lands
Bureau of Land Management(Bureau of Land Management NV)
Bureau of Land Management NV BLM(Type of land area)
BLM(Federal land areas administered by BLM)
| Country | State | County |
|---|---|---|
| United States | Nevada | Lincoln |
| Meridian | Township | Range | Section | Fraction | State |
|---|---|---|---|---|---|
| 07N | 68E | 26 | Nevada |
| Commodity | Importance |
|---|---|
| Silver | Primary |
| Gold | Primary |
| Copper | Tertiary |
| Uranium | Tertiary |
| Materials | Type of material |
|---|---|
| Argentite | Ore |
| Goethite | Gangue |
| Quartz | Gangue |
| Host or associated | Host | ||
|---|---|---|---|
| Rock type | Sedimentary Rock > Carbonate > Limestone | ||
| |||
| Host or associated | Host |
|---|---|
| Rock type | Sedimentary Rock > Carbonate > Dolomite |
| (1) | Carbonate Shelf Sequence - Dolomite, limestone, and shale |
|---|
| Type of structure | Local |
|---|---|
| Structure description | Fault |
| General form | LENS, TABULAR TO IRREGULAR |
|---|---|
| Strike | N45W TO N60W TO N60W |
| Dip | 50NE |
| Development status | Occurrence |
|---|---|
| Commodity type | Metallic |
| Deposit size | Small |
| Significant | No |
| District name | Atlanta District; Silver Park District; Silver Springs District |
|---|
| Ownership category | BLM Administrative Area |
|---|
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| USGS | Mineral Resources Data System | MRDS | M032068 |
TSCHANTZ CM & PAMPEYAN EH, GEOLOGY AND MINERAL DEPOSITS OF LINCOLN CO., NEV. BUREAU OF MINES BULL 73
HILL, J. M., 1916, USGS BULL 648
NBMG MINING DISTRICT FILE 164
COX, JOHN W., 1981, GEOLOGY AND MINERALIZATION OF THE ATLANTA DISTRICT, LINCOLN COUNTY, NEVADA; M. S. THESIS, UNIV NEVADA, RENO.
| Subject category | Comment text |
|---|---|
| Deposit | WORKINGS PENETRATE A LARGE SILICIFIED OUTCROP ON THE BRADSHAW FAULT ZONE. THE SILICIFIED ROCK DIPS ABOUT 35 NE AND IS ELONGATE NW-SE PARALLEL TO THE FAULT ZONE. THE ROCK IS SIMILAR TO THAT IN THE ATLANTA MINE EXCEPT THAT IT HAS FEWER OPEN SPACES. BRECCIA FRAGMENTS APPEAR TO BE COMPLETELY SILICIFIED CARBONATE ROCK. THE DEEPEST PORTIONS OF THE MINE PENETRATE CARBONATE BEDS WHICH HAVE BEEN SILICIFIED INTACT WITH ONLY MINOR BRECCIATION. NO SULFIDE MINERALS WERE FOUND BUT LIMONITE PRESENT IN OPEN SPACES HAS PROBABLY BEEN DERIVED FROM OXIDATION OF PYRITE. SAMPLING DONE BY STANDARD SLAG CO INDICATES WIDESPREAD AU AND AG MINERALIZATION PRESENT AT THE BRADSHAW MINE.INU VISIBLE U MINERALS ARE PRESENT, BUT A RADIOMETRIC SURVEY OF THE MINE DUMP IN 1978 INDICATES ANOMALOUS RADIOACTIVITY. |
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 01-FEB-1980 | Harner, Joy L. (Roberts, Ralph J.) | U.S. Geological Survey | |
| Updater | 01-JAN-1985 | La Pointe, D.D. (Tingley, J.V.) | U.S. Geological Survey |
Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.
These are landing pages for further research — the state agencies don't currently expose per-mine deep links.