| Deposit ID | 10047523 |
|---|---|
| MRDS ID | M242884 |
| Record type | Site |
| Current site name | NBMG Sample Site 1481 |
| Alternate or previous names | Also Nbmg Sample Site 2595 |
| Geographic coordinates: | -118.76766, 40.23656 (WGS84) |
|---|---|
| Elevation | 1660 |
Political divisions (FIPS codes)
Pershing(county)
Nevada(state)
United States(country)
North America(continent)
Land(continent)
USGS map quadrangles
Lowry Well(quadrangle 1:24,000 scale)
Lovelock(quadrangle 1:100,000 scale)
Lovelock(quadrangle 1:250,000 scale)
Hydrologic units (watersheds)
Granite Springs Valley(hydrologic unit)
Truckee(hydrologic accounting unit)
Central Lahontan(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 | 027N | 029E | 06 | SE | Nevada |
| Commodity | Importance |
|---|---|
| Gold | Primary |
| Silver | Primary |
| Materials | Type of material |
|---|---|
| Illite | Gangue |
| Quartz | Gangue |
| Result | SAMPLE 1481 OF SILICIFIED TUFF BRECCIA CONTAINS 5 % FE, 0.3 % MG, 0.5 % TI, 200 PPM MN, 5 PPM AG, 200 PPM AS, 50 PPM B, 1500 PPM BA, 1.5 PPM BE, 10 PPM CR, 20 PPM CR, 20 PPM CU, 30 PPM MO, 5 PPM NI, 70 PPM PB, 15 PPM SC, 100 PPM V, 50 PPM W, 30 PPM Y, 300 PPM ZR, AND 0.05 PPM AU, BY AA ANALYSIS. SAMPLE 2595, DUMP GRAB OF SILICIFIED RHYOLITE WITH ILLITE, QUARTZ, AND OXIDIZED SULFIDES CONTAINS 1.9 PPM AU, BY AA ANALYSIS, 2 % FE, 0.07 % MG, 0.15 % TI, 150 PPM MN, 7 PPM AG, 700 PPM AS, 10 PPM B, 500 PPM BA, 2 PPM BE, 7 PPM CU, 20 PPM MO, 50 PPM PB, 150 PPM SB, 7 PPM SC, 30 PPM V, 20 PPM Y, 150 PPM ZR. |
|---|
| Model code | 150 |
|---|---|
| USGS model code | 25c |
| Deposit model name | Epithermal vein, Comstock |
| Mark3 model number | 16 |
| Host or associated | Associated | ||||
|---|---|---|---|---|---|
| Rock type | Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Rhyolite | ||||
| |||||
| Host or associated | Host |
|---|---|
| Rock type | Volcanic Rock (Aphanitic) > Pyroclastic Rock > Tuff > Ash-Flow Tuff |
| (1) | -118.76766, 40.23656 |
|---|
| Strike | N70E |
|---|---|
| Dip | 75NW |
| Development status | Occurrence |
|---|---|
| Commodity type | Metallic |
| Deposit size | Small |
| Significant | No |
| District name | Velvet District |
|---|
| Ownership category | BLM Administrative Area |
|---|
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| USGS | Mineral Resources Data System | MRDS | M242884 |
TINGLEY, J.V., 5 JUN 84, NBMG FIELD EXAMINATION AND SAMPLE ANLYSIS.
BONHAM, H.F., JR., MAY 1985, NBMG FIELD EXAMINATION AND SAMPLE ANLYSIS.
NBMG STAFF, 1985, NBMG OFR 85-3.
JOHNSON, M.G.M 1977, NBMG BULLETIN 89, PL. 1.
| Subject category | Comment text |
|---|---|
| Deposit | SHAFT EXPOSES N70E, 75 NW-TRENDING BRECCIA ZONE IN ARGILLIZED ASH-FLOW TUFF, ROCK IN WALLS OF STRUCTURE IS BRECCIATED, CEMENTED WITH SILICA; VUGS IN BRECCIA COATED WITH MICRO-CRYSTALLINE QUARTZ, CLOTS AND MASSES OF AMBER/JAROSITE. ZONE AS EXPOSED AT PORTAL OF ADIT HAS A 2-FT WIDE FRACTURE ZONE WITH ABOUT 6 INCHES OF COCKSCOMB QUARTZ ALONG IT. SAMPLE 1481 IS OF THE SILICIFIED TUFF BRECCIA WITH ANGULAR FRAGMENTS OF ARGILLICALLY ALTERED TUFF CEMENTED BY CHALCEDONIC SILICA. |
| 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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