| Deposit ID | 10037385 |
|---|---|
| MRDS ID | M032086 |
| Record type | Site |
| Current site name | Pennsylvania Mine North Mine North |
| Alternate or previous names | Charity, Sureshot Claims, Part of Tom Johnston Property, Part of Alta Claims |
| Related records | 10149684 |
| Geographic coordinates: | -114.47527, 37.41775 (WGS84) |
|---|---|
| Relative position | 3 MILES S OF ELLA MTN. |
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 |
|---|---|---|---|---|---|
| 06S | 67E | 16 | Nevada |
| Commodity | Importance |
|---|---|
| Copper | Primary |
| Silver | Primary |
| Gold | Primary |
| Materials | Type of material |
|---|---|
| Bornite | Ore |
| Chalcopyrite | Ore |
| Covellite | Ore |
| Malachite | Ore |
| Tetrahedrite | Ore |
| Calcite | Gangue |
| Clay | Gangue |
| Pyrite | Gangue |
| Quartz | Gangue |
| Result | 1969 TRENCH SAMPLES RAN UP TO 0.53 OZ/T AG, AND 0.063 % CU. |
|---|
| Host or associated | Associated | ||||
|---|---|---|---|---|---|
| Rock type | Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Latite | ||||
| |||||
| Host or associated | Associated |
|---|---|
| Rock type | Volcanic Rock (Aphanitic) > Intermediate Volcanic Rock > Andesite |
| Host or associated | Host |
|---|---|
| Rock type | Metamorphic Rock > Metasedimentary Rock > Quartzite |
| Host or associated | Host |
|---|---|
| Rock type | Sedimentary Rock > Clastic Sedimentary Rock > Shale |
| Host or associated | Host |
|---|---|
| Rock type | Sedimentary Rock > Carbonate > Limestone |
| Rock unit name | Prospect Mountain Quartzite;Pioche Shale |
| Rock description | Prospect Mountain Quartzite;Pioche Shale |
| (1) | -114.47527, 37.41775 |
|---|
| Type of structure | Regional |
|---|---|
| Structure description | Caliente Caldron Complex |
| Type of structure | Local |
| Structure description | Faults |
| Strike | N20W |
|---|---|
| Dip | 12-30E |
| Thickness | 4.57M |
| Width | 137.16M |
| Development status | Past Producer |
|---|---|
| Commodity type | Metallic |
| Deposit size | Small |
| Significant | No |
| Discovery year | 1875 |
| District name | Pennsylvaniadistrictdistrict |
|---|
| Ownership category | BLM Administrative Area |
|---|
| Type | Owner |
|---|---|
| Owner | Tom Johnston, Eureka, Nv. ; Smith, Caliente, Nv. |
| First year | 1953 |
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| USGS | Mineral Resources Data System | MRDS | M032086 |
TSCHANTZ CM & PAMPEYAN EH, 1970, GEOLOGY AND MINERAL DEPOSITS OF LINCOLN COUNTY, NEV BUR MINES BULL 73
BENTZ, J. AND SMITH, P., 1983, FIELD EXAMINATION REPORT, SEPT 13, 1983.
NBMG DISTRICT FILE 178, ITEM 3, 1953
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 | CHALCOPYRITE AND FE-OXIDES. SEVERAL FRAGMENTS DISPLAY EARLY STAGE VITREOUS QUARTZ VEINLETS. THE BRECCIA ITSELF IS COMMONLY CROSSCUT BY LATE-STAGE OPEN-CENTERED FISSURE VEINS. THE BRECCIA ITSELF IS COMMONLY CROSSCUT BY LATESTAGE OPEN-CENTERED FISSURE VEINS. THE ROCKS EXPOSED IN THE TRENCHES ABOVE THE PROSPECTS ARE ALTERED PINK-GREY, RHYOLITE ASH-FLOW TUFF. WITHIN THE TRENCH, THE ROCKS ARE BLEACHED, ARGILLIZED (KAOLINIZED?) AND SHEARED. THE ROCKS ARE HYDROTHERMALLY ALTERED TO BRIGHT RED, YELLOW, AND ORANGE COLORS AT THE NW END OF THE TRENCH. THEY ARE CLAY-ALTERED AND SHOW CALCITE AND CLAY VEINING. NUMEROUS GOUGE ZONES. SAMPLE 1701 WAS FROM THE MINE DUMP AND SAMPLE 1702 WAS TAKEN FROM A ROADCUT EXPOSURE OF ALTERED VOLCANICS. |
| Deposit | ALTERED VOLCANICS AND QUARTZ-VEIN BRECCIA OUTCROPS ARE FRACTURED AND SHEARED PARALLEL TO N20-40W ORIENTATION. FRACTURE PLANES ARE VERTICAL TO STEEPLY SW-DIPPING AND COMMONLY COATED BY FE AND MN OXIDES. THE ALTERED VOLCANICS ARE CUT BY A NETWORK OF CROSSCUTTING, VITREOUS TO SUGARY QUARTZ VEINLETS, SOME CONTAINING OXIDEZED PYRITE, CHALCOPYRITE, COVELLITE, TETRAHEDRITE, CU OXIDES AND STREAKS OF VERY FINELY CRYSTALLINE SULFIDES. THE PENNSYLVANIA VEIN IS ACTUALLY A ZONE OF QUARTZ VEINING OR MULTIPLE VEIN SYSTEM WHICH CEMENTS AN ANDESITE BRECCIA. THE EXPLORED WIDTH OF THE "VEIN" IS ABOUT 6-10 FT. THE QUARTZ CEMENTING THE BRECCIA FRAGMENTS IS SUGARY, WHITE TO VITREOUS GREY. MANY OF THE VEINS ARE FISSURE-TYPE, COMPOSED OF BANDS OF FINELY CRYSTALLINE OR CHALCEDONIC QUARTZ WITH OPEN DRUSY QUARTZ-ENCRUSTED CENTERS. THE QUARTZ CARRIES THE MINERALS MENTIONED ABOVE AND ENCLOSES ALTERED ANDESITE AND POSSIBLY SOME SEDIMEN TARY FRAGMENTS. SOME OF THE FRAGMENTS ARE MINERALIZED, CONTAINING PYRITE, |
| Deposit | Discovery Year: 1870'S |
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 01-FEB-1980 | Harner, Joy L. (Roberts, Ralph J.) | U.S. Geological Survey | |
| Updater | 01-DEC-1984 | 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.
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