| Deposit ID | 10047265 |
|---|---|
| MRDS ID | M242540 |
| Record type | Site |
| Current site name | Iron Point Claims |
| Alternate or previous names | NBMG Sample Site 2903 |
| Geographic coordinates: | -117.31845, 40.75768 (WGS84) |
|---|---|
| Elevation | 1814 |
Political divisions (FIPS codes)
Humboldt(county)
Nevada(state)
United States(country)
North America(continent)
Land(continent)
USGS map quadrangles
Brooks Spring(quadrangle 1:24,000 scale)
Winnemucca(quadrangle 1:100,000 scale)
Winnemucca(quadrangle 1:250,000 scale)
Hydrologic units (watersheds)
Middle Humboldt(hydrologic unit)
Humboldt(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 | Humboldt |
| Meridian | Township | Range | Section | Fraction | State |
|---|---|---|---|---|---|
| Mount Diablo | 033N | 041E | 01 | SW OF SW | Nevada |
| Commodity | Importance |
|---|---|
| Gold | Primary |
| Materials | Type of material |
|---|---|
| Gold | Ore |
| Result | SAMPLE 2903, A GRAB SAMPLE ACROSS THE IRON-STAINED PART OF THE LOWERMOST TRENCH, CONTAINS 10% FE, 1% MG, 20% CA, 1% TI, 5000 PPM MN, 200 PPM AS, 500 PPM B, 1500 PPM BA, 2 PPM BE, 50 PPM CO, 70 PPM CR, 100 PPM CU, 50 PPM LA, 10 PPM MO, 30 PPM NI, 50 PPM PB, 15 PPM SC, 200 PPM SR, 300 PPM V, 30 PPM Y, 100 PPM ZR. AA ANALYSIS OF SAMPLE 2903 SHOWS .10 PPM AU. |
|---|
| Model code | 85 |
|---|---|
| USGS model code | 22c |
| Deposit model name | Polymetallic veins |
| Mark3 model number | 46 |
| Host or associated | Associated | ||
|---|---|---|---|
| Rock type | Plutonic Rock > Mafic Intrusive Rock > Diorite | ||
| |||
| Host or associated | Host |
|---|---|
| Rock type | Metamorphic Rock > Metasedimentary Rock > Quartzite |
| Rock unit name | Havallah |
| Rock description | Havallah |
| (1) | -117.31845, 40.75768 |
|---|
| Type of structure | Local |
|---|---|
| Structure description | Shear Zones |
| Strike | N-S |
|---|---|
| Dip | STEEP |
| Development status | Occurrence |
|---|---|
| Commodity type | Metallic |
| Deposit size | Small |
| Significant | No |
| District name | Buffalo Mountain Area |
|---|
| Ownership category | BLM Administrative Area |
|---|
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| USGS | Mineral Resources Data System | MRDS | M242540 |
GARSIDE, L.J., 1984, NBMG FIELD EXAMINATION, 30 SEP 84.
MARSH, S.P. AND ERICKSON, R.L., 1974, USGS MF 567.
MARSH, S.P. AND ERICKSON, R.L., 1977, USGS GQ 1366.
WILLDEN, R., 1964, NBMG BULL 59.
| Subject category | Comment text |
|---|---|
| Deposit | MINERAL EXPLORATION ACTIVITY HERE APPEARS TO BE CENTERED ON NORTH-TRENDING SHEAR ZONES WHICH CUT GRANODIORITE AND INTRUDE QUARTZITE. THE SHEAR ZONES ARE HEAVILY STAINED AND COATED WITH IRON OXIDE MINERALS, AND ARE LOCALLY SILICIFIED. THE GRANODIORITE IN THE SHEAR ZONES IS COMMONLY ARGILLIZED. THE SHEAR ZONES ARE GENERALLY HIGH ANGLE. THIS AREA IS IN THE CONTACT ZONE BETWEEN METASEDIMENTARY ROCKS AND GRANODIORITE. MOST OF THE ROCK EXPOSED IN TRENCHES NEAR THE SAMPLE POINT IS GRANODIORITE. |
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 01-JUL-1985 | 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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