| Deposit ID | 10047484 |
|---|---|
| MRDS ID | M242842 |
| Record type | Site |
| Current site name | Black Star Claim Group |
| Alternate or previous names | NBMG Sample Sites 2928, 2930, 2929 |
| Geographic coordinates: | -119.00378, 40.77849 (WGS84) |
|---|---|
| Elevation | 1463 |
Political divisions (FIPS codes)
Pershing(county)
Nevada(state)
United States(country)
North America(continent)
Land(continent)
USGS map quadrangles
Trego Hot Springs(quadrangle 1:24,000 scale)
Gerlach(quadrangle 1:100,000 scale)
Lovelock(quadrangle 1:250,000 scale)
Hydrologic units (watersheds)
Lower Quinn(hydrologic unit)
Black Rock Desert(hydrologic accounting unit)
Black Rock Desert-Humboldt(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 | Pershing |
| Meridian | Township | Range | Section | Fraction | State |
|---|---|---|---|---|---|
| Mount Diablo | 034N | 026E | Nevada |
| Commodity | Importance |
|---|---|
| Gold | Primary |
| Silver | Secondary |
| Copper | Tertiary |
| Antimony Critical | Tertiary |
| Materials | Type of material |
|---|---|
| Gold | Ore |
| Pyrite | Gangue |
| Quartz | Gangue |
| Result | SAMPLE 2928 CONTAINS 3 % FE, 0.7 % MG, 0.5 % CA, 0.1 % TI, 150 PPM MN, 2 PPM AG, 300 PPM AS, 70 PPM B, 500 PPM BI, 30 PPM CO, 150 PPM CU, 7 PPM MO, 150 PPM NI, 30 PPM PB, 5 PPM SC, 200 PPM V, 15 PPM ZR, AND 9.0 PPM AU (BY AA ANALYSIS). SAMPLE 2929 CONTAINS 7 % FE, 0.05 % MG, 1.5 % CA, 0.015 % TI, 50 PPM MN, 7 PPM AG, 500 PPM AS, 15 PPM AU, 15 PPM B, 700 PPM BI, 70 PPM CO, 700 PPM CU, 150 PPM NI, 50 PPM PB, 150 PPM V, AND 7.0 PPM AU (BY AA ANALYSIS). SAMPLE 2930 CONTAINS 5 % FE, 0.02 % MG, 0.1 % CA, 0.005 % TI, 50 PPM MN, 700 PPM AG, 1000 PPM AS, 30 PPM B, 70 PPM BA, 1000 PPM BI, 50 PPM CD, 7 PPM CO, 20000 PPM CU, 20 PPM LA, 50 PPM NI, 700 PPM PB, +10000 PPM SB, 200 PPM V, 300 PPM ZN, AND 1.5 PPM AU (BY AA ANALYSIS). |
|---|
| 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 > Diorite | ||||
| |||||
| Host or associated | Host |
|---|---|
| Rock type | Metamorphic Rock > Metavolcanic Rock |
| (1) | -119.00378, 40.77849 |
|---|
| Development status | Occurrence |
|---|---|
| Commodity type | Metallic |
| Deposit size | Small |
| Significant | No |
| District name | Trego Mining Area |
|---|
| Ownership category | BLM Administrative Area |
|---|
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| USGS | Mineral Resources Data System | MRDS | M242842 |
QUADE, JACK, 5 JUN 85, NBMG FIELD EXAMINATION REPORT AND SAMPLE ANALYSIS.
NBMG STAFF, 1985, NBMG OFR 85-3.
JOGNSON, M. G., 1977, NBMG BULL 89, PL. I.
| Subject category | Comment text |
|---|---|
| Deposit | METAVOLCANICS ON EAST AND GRANODIORITE ON WEST. EXTENSIVE QUARTZ VEIN SYSTEM WITH MOST WORKINGS IN THE GRANODIORITE, ON N-TRENDING VEINS. SMALL ADIT FOLLOWS A N10W VEIN DIPPING 10 W; THIS VEIN WAS OPEN-STOPED ALONG E SIDE OF HILL FOR 200 FT (SAMPLE 2928). ADIT AND INCLINE NEAR MILLSITE EXPLORED SEVERAL VEINS (N10W) IN GRANODIORITE (SAMPLE 2929). LOCALLY, THERE ARE PODS OF BLACK TOURMALINE ADJACENT TO OR NEAR CONTACT ZONES. VEIN MATERIAL HAS BEEN SORTED AND STACKED IN PILES. ONLY VISIBLE MINERALIZATION IN VEINS IS PYRITE AND FE OXIDES. |
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 01-MAR-1987 | La Pointe, D.D. (Tingley, J.V.) | Nevada Bureau of Mines and Geology | |
| Updater | 01-SEP-1994 | Li, Zhiping (Peters, S.) | U.S. Geological Survey |
Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.
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