| Deposit ID | 10046481 |
|---|---|
| MRDS ID | M241648 |
| Record type | Site |
| Current site name | Pennsylvania Mine South |
| Alternate or previous names | Owl Claim?, Part of Tom Johnston Property, Part of Alta Claims |
| Geographic coordinates: | -114.47527, 37.41664 (WGS84) |
|---|---|
| Elevation | 1759 |
Political divisions (FIPS codes)
Lincoln(county)
Nevada(state)
United States(country)
North America(continent)
Land(continent)
USGS map quadrangles
Ella Mountain(quadrangle 1:24,000 scale)
Clover Mountains(quadrangle 1:100,000 scale)
Caliente(quadrangle 1:250,000 scale)
Hydrologic units (watersheds)
Meadow Valley Wash(hydrologic unit)
Lower Colorado-Lake Mead(hydrologic accounting unit)
Lower Colorado-Lake Mead(hydrologic subregion)
Lower Colorado(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 |
|---|---|---|---|---|---|
| Mount Diablo | 006S | 067E | 16 | Nevada |
| Commodity | Importance |
|---|---|
| Copper | Primary |
| Silver | Primary |
| Gold | Primary |
| Materials | Type of material |
|---|---|
| Chalcopyrite | Ore |
| Tetrahedrite | Ore |
| Pyrite | Gangue |
| Quartz | Gangue |
| Model code | 150 |
|---|---|
| USGS model code | 25c |
| Deposit model name | Epithermal vein, Comstock |
| Mark3 model number | 16 |
| Host or associated | Associated | ||
|---|---|---|---|
| Rock type | Plutonic Rock > Mafic Intrusive Rock | ||
| |||
| Host or associated | Associated |
|---|---|
| Rock type | Volcanic Rock (Aphanitic) > Pyroclastic Rock > Tuff > Ash-Flow Tuff |
| Host or associated | Associated |
|---|---|
| Rock type | Volcanic Rock (Aphanitic) > Intermediate Volcanic Rock > Andesite |
| Host or associated | Host |
|---|---|
| Rock type | Sedimentary Rock > Clastic Sedimentary Rock |
| Host or associated | Host |
|---|---|
| Rock type | Volcanic Rock (Aphanitic) > Pyroclastic Rock > Tuff > Ash-Flow Tuff |
| Host or associated | Host |
|---|---|
| Rock type | Volcanic Rock (Aphanitic) > Intermediate Volcanic Rock > Andesite |
| Rock unit name | Prospect Mountain Quartzite;Pioche Shale |
| Rock description | Prospect Mountain Quartzite;Pioche Shale |
| (1) | -114.47527, 37.41664 |
|---|
| Type of structure | Regional |
|---|---|
| Structure description | Caliente Caldron Complex |
| Type of structure | Local |
| Structure description | Faults, Fractures |
| Strike | N-S |
|---|---|
| Dip | VARIABLE; MAINLY 45E |
| Length | 9.14M |
| Width | 9.14M |
| Strike | N-S |
|---|---|
| Dip | VARIABLE; MAINLY 45E |
| Development status | Past Producer |
|---|---|
| Commodity type | Metallic |
| Deposit size | Small |
| Significant | No |
| District name | Pennsylvania District |
|---|
| Ownership category | BLM Administrative Area |
|---|
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| USGS | Mineral Resources Data System | MRDS | M241648 |
BENTZ, J. AND SMITH, P., 1983, FIELD EXAMINATION REPORT, SEPT. 13, 1983.
TSCHANZ, C.M. AND PAMPEYAN, E.H., 1970, NBMG BULL 73, P. 170-172, PL I, II.
NBMG DISTRICT FILES, REPORT ON TOM JOHNSTON PROPERTY
GRAPEVINE SPRING G-E-M RESOURCES AREA TECHNICAL REPORT, 1983, FOR BLM
| Subject category | Comment text |
|---|---|
| Deposit | ELONGATE PROSPECT IN NW PART OF MINE AREA PROVIDES GOOD EXPOSURE OF GEOLOGY. PROPYLITIZED, SILICIFIED ANDESITES. VOLCANICS CUT BY MAFIC DIKES AND A N25W SHEAR ZONE. QUARTZ VEINS PARALLEL THE SHEAR ZONE FORMING A SHEETED VEIN SYSTEM. SHEAR ZONE 10-30 FT WIDE. SLICKENSIDES WITHIN THE ZONE ARE STEEPLY INCLINED AND COATED BY FE OXIDES AND QUARTZ. THE QUARTZ VEINS ARE GENERALLY SUBPARALLEL AND NUMEROUS. MANY ARE EMPLACED ALONG BOTH HIGH AND LOW-ANGLE FRACTURES. MOST OF THE VEINS ARE VUGGY, OPEN-CENTERED FISSURE-TYPE. THE VEINS ARE COMPOSED OF WHITE MASSIVE-COMB AND SUGARY QUARTZ. SOME OF THE VEINS ARE STEEPLY INCLINED AND OTHERS ARE SHALLOW OR ALMOST HORIZONTAL. ON EAST SIDE OF TRENCH THERE IS A 1-2 FT WIDE MASSIVE TO VUGGY QUARTZ VEIN AND QUARTZ-VEINED BRECCIA WHICH DIPS ABOUT 45 TO THE EAST. THIS IS PROBABLY THE HEART OF THE MAIN PENNSYLVANIA VEIN. THE ANDESITES IMMEDIATELY WEST OF THE VEIN ARE IRON-STAINED AND LACED WITH QUARTZ VEINS AND VEINLETS WHICH ARE MOSTLY N-NW-STRIKING AND MORE |
| Deposit | STEEPLY INCLINED THAN IS THE MAIN VEIN. RELATIVELY SMALL AMOUNT OF FE AND MN OXIDES IS ASSOCIATED WITH VEIN MATERIAL, AND IN GENERAL THE QUARTZ CONTAINS ONLY A SMALL AMOUNT OF FINELY CRYSTALLINE PYR |
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 01-MAR-1984 | La Pointe, D.D. (Tingley, J.V.) | Nevada Bureau of Mines and Geology |
Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.
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