| Deposit ID | 10047470 |
|---|---|
| MRDS ID | M242825 |
| Record type | Site |
| Current site name | NBMG Sample Site 2605 |
| Related records | 10295048 |
| Geographic coordinates: | -117.45903, 41.5935 (WGS84) |
|---|---|
| Elevation | 2060 |
Political divisions (FIPS codes)
Humboldt(county)
Nevada(state)
United States(country)
North America(continent)
Land(continent)
USGS map quadrangles
Spring City(quadrangle 1:24,000 scale)
Quinn River Valley(quadrangle 1:100,000 scale)
McDermitt(quadrangle 1:250,000 scale)
Hydrologic units (watersheds)
Little Humboldt(hydrologic unit)
Humboldt(hydrologic accounting unit)
Black Rock Desert-Humboldt(hydrologic subregion)
Great Basin(hydrologic region)
Federal lands
Humboldt-Toiyabe National Forest(National Forest)
National Forest FS(Type of land area)
FS(Federal land areas administered by FS)
| Country | State | County |
|---|---|---|
| United States | Nevada | Humboldt |
| Meridian | Township | Range | Section | Fraction | State |
|---|---|---|---|---|---|
| Mount Diablo | 043N | 040E | 22 | SW OF NW | Nevada |
| Commodity | Importance |
|---|---|
| Silver | Primary |
| Gold | Secondary |
| Lead | Tertiary |
| Antimony Critical | Tertiary |
| Copper | Tertiary |
| Materials | Type of material |
|---|---|
| Tetrahedrite | Ore |
| Iron | Gangue |
| Quartz | Gangue |
| Result | SAMPLE 2605 OF QUARTZ VEIN MATERIAL WITH OXIDE CU STAIN CONTAINS 0.2 % FE, 0.02 % MG, 0.002 % TI, 150 PPM AG, 15 PPM B, 500 PPM CU, 5 PPM MO, 5 PPM NI, 700 PPM PB, 500 PPM SB, 10 PPM V, AND 0.25 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 |
| Host or associated | Associated |
|---|---|
| Rock type | Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Rhyolite |
| Host or associated | Host |
|---|---|
| Rock type | Metamorphic Rock > Schist |
| (1) | -117.45903, 41.5935 |
|---|
| General form | TABULAR |
|---|---|
| Strike | N80E AND N70-80W |
| Dip | 40-50 NW AND 30-40 NE |
| Development status | Occurrence |
|---|---|
| Commodity type | Metallic |
| Deposit size | Small |
| Significant | No |
| District name | Spring City District; Paradise Valley District; Mount Rose District |
|---|
| Ownership category | National Forest |
|---|
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| USGS | Mineral Resources Data System | MRDS | M242825 |
TINGLEY, J. V., 5 SEP 84, NBMG FIELD EXAMINATION REPORT AND SAMPLE ANALYSIS.
WILLDEN, R., 1964, NBMG BULL 59, PL. I.
LINDGREN, W., 1915, USGS BULL 601, P. 12.
| Subject category | Comment text |
|---|---|
| Deposit | MASSIVE WHITE QUARTZ VEIN ROLLS ALONG STRIKE AND DIP TO CONFORM TO CLEAVAGE PLANES IN KNOTTED SCHIST WALLROCK, WHICH IS CARBONACEOUS. APLITE DIKE IN HANGING WALL OF VEIN AT WESTERN EXPOSURE . VEIN IS 15-20 FT THICK, AND HAS PARALLEL VEINLETS IN BOTH WALLS. OPEN VUGS IN VEIN LINED WITH TERMINATE CLEAR QUARTZ CRYSTALS, STREAKS AND CLOTS OF WALLROCK IN VEIN; IRON-OXIDE STAIN AND SOME GREEN AND BLUE CU STAIN. AT MAIN VEIN EXPOSURES IN INCLINES, VEIN IS N70-80W, 30-40 NE. PARTS OF THE VEIN ON FOOTWALL ARE BRECCIATED AND RECEMENTED WITH DARK, CLEAR QUARTZ. DOWN THE NOSE OF THE RIDGE, SSW OF SITE 2605, OTHER PARALLEL QUARTZ LENSES CROP OUT, A N20E, 50 SE PLUG FOLLOWS VEIN ON WEST, AND OTHER MASSES OF THE RHYOLITE CROP OUT ON THE SLOPE TO THE WEST. A THIN SECTION OF THE DIKE ROCK SHOWED IT TO BE KAOLINIZED AND VEINED WITH SILICA. |
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 01-JAN-1987 | 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.
These are landing pages for further research — the state agencies don't currently expose per-mine deep links.