| Deposit ID | 10310502 |
|---|---|
| MRDS ID | M231054 |
| MAS/MILS ID | 0320010082 |
| Record type | Site |
| Current site name | Pyramid Mine |
| Geographic coordinates: | -118.71653, 39.09158 (WGS84) |
|---|
Political divisions (FIPS codes)
Churchill(county)
Nevada(state)
United States(country)
North America(continent)
Land(continent)
USGS map quadrangles
Terrill Mountains(quadrangle 1:24,000 scale)
Fallon(quadrangle 1:100,000 scale)
Reno(quadrangle 1:250,000 scale)
Hydrologic units (watersheds)
Gabbs Valley(hydrologic unit)
Central Nevada Desert Basins(hydrologic accounting unit)
Central Nevada Desert Basins(hydrologic subregion)
Great Basin(hydrologic region)
Federal lands
BIA(Federal land areas administered by BIA)
| Country | State | County |
|---|---|---|
| United States | Nevada | Churchill |
| Meridian | Township | Range | Section | Fraction | State |
|---|---|---|---|---|---|
| Mount Diablo | 014N | 029E | 10 | Nevada |
| Commodity | Importance |
|---|---|
| Silver | Primary |
| Lead | Primary |
| Manganese Critical | Tertiary |
| Zinc Critical | Tertiary |
| Gold | Tertiary |
| Materials | Type of material |
|---|---|
| Quartz | Gangue |
| Model code | 150 |
|---|---|
| USGS model code | 25c |
| Deposit model name | Epithermal vein, Comstock |
| Mark3 model number | 16 |
| Host or associated | Host | ||
|---|---|---|---|
| Rock type | Volcanic Rock (Aphanitic) > Pyroclastic Rock > Tuff > Welded Tuff | ||
| Rock type qualifier | rhyolitic | ||
| |||
| Host or associated | Host | ||
|---|---|---|---|
| Rock type | Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Rhyolite | ||
| Rock type qualifier | welded tuff | ||
| |||
| (1) | -118.71653, 39.09158 |
|---|
| Operation type | Surface-Underground |
|---|---|
| Development status | Past Producer |
| Commodity type | Metallic |
| Deposit size | Small |
| Significant | Yes |
| District name | Holy Cross |
|---|
| Ownership category | BLM Administrative Area |
|---|
| Type | Owner-Operator |
|---|---|
| Owner | Breckenridge Minerals, Inc. |
| Year | 1998 |
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| USGS | Mineral Resources Data System | MRDS | M231054 | MRDS dep_id 10043774 merged into this record. |
| USGS | Mineral Resources Data System | MRDS | 0320010082 | MRDS dep_id 10246190 merged into this record. |
WILLDEN, RONALD, AND SPEED, RC, 1974, GEOLOGY AND MINERAL DEPOSITS OF CHURCHILL COUNTY, NEVADA: NBMG BULL 83, p. 74.
NBMG MI-98
Amer. Mines (1999), 1998
Amer. Mines (2000), 1999
BIA Walker River Inventory (MD191, I21), 1985
Fallon Land Status Map, 1978
| Subject category | Comment text |
|---|---|
| Deposit | Workings explore bleached zones in rhyolitic welded tuff. Manganese oxides and iron oxides are present in sheared parts of the alteration zones in some of the workings, and some thin quartz veins are present. A sample of remaining vein material was found to contain 2000 ppm silver and more than 2% lead. A sample of altered welded tuff contained 500 ppm silver and a small amount of lead and manganese. |
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 01-JUL-1980 | Flynn, Patricia Dodd | Nevada Bureau of Mines and Geology | |
| Reporter | 09-APR-1994 | Ridenour, James (R) | U.S. Bureau of Mines | |
| Updater | 01-MAY-2003 | LaPointe, D.D. | Nevada Bureau of Mines and Geology | |
| Editor | 01-SEP-2007 | Schruben, Paul G. | U.S. Geological Survey | Converted from S&A FileMaker format to Oracle. Edit checks on rocks, units, and ages with Geolex search, and other fields. |
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.