| Deposit ID | 10046851 |
|---|---|
| MRDS ID | M242068 |
| Record type | Site |
| Current site name | Four Aces Mine |
| Alternate or previous names | Nw End of Sylvania Group: Four Aces Nos. 1-3 Claims |
| Geographic coordinates: | -117.73759, 37.40634 (WGS84) |
|---|---|
| Elevation | 2164 |
Political divisions (FIPS codes)
Esmeralda(county)
Nevada(state)
United States(country)
North America(continent)
Land(continent)
USGS map quadrangles
Sylvania Mountains(quadrangle 1:24,000 scale)
Last Chance Range(quadrangle 1:100,000 scale)
Goldfield(quadrangle 1:250,000 scale)
Hydrologic units (watersheds)
Fish Lake-Soda Spring Valleys(hydrologic unit)
Central Nevada Desert Basins(hydrologic accounting unit)
Central Nevada Desert Basins(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 | Esmeralda |
| Meridian | Township | Range | Section | Fraction | State |
|---|---|---|---|---|---|
| Mount Diablo | 006S | 038E | 22,23 | NE (22); NW (23) | Nevada |
| Commodity | Importance |
|---|---|
| Tungsten Critical | Primary |
| Talc-Soapstone | Tertiary |
| Lead | Tertiary |
| Zinc Critical | Tertiary |
| Molybdenum | Tertiary |
| Iron | Tertiary |
| Materials | Type of material |
|---|---|
| Galena | Ore |
| Molybdenite | Ore |
| Powellite | Ore |
| Pyrite | Ore |
| Scheelite | Ore |
| Sphalerite | Ore |
| Talc | Ore |
| Chlorite | Gangue |
| Epidote | Gangue |
| Garnet | Gangue |
| Result | GRADE OF PODS VARIES FROM A TRACE TO 0.52% WO3 |
|---|
| Host or associated | Associated | ||||
|---|---|---|---|---|---|
| Rock type | Plutonic Rock > Granitoid > Quartz Monzonite | ||||
| Rock unit name | Sylvania Pluton | ||||
| Rock description | Sylvania Pluton | ||||
| |||||
| Host or associated | Host |
|---|---|
| Rock type | Sedimentary Rock > Carbonate > Limestone |
| Host or associated | Host |
|---|---|
| Rock type | Sedimentary Rock > Carbonate > Dolomite |
| Rock unit name | Wyman Formation |
| Rock description | Wyman |
| (1) | -117.73759, 37.40634 |
|---|
| Type of structure | Local |
|---|---|
| Structure description | Faults |
| General form | PODS |
|---|---|
| Strike | E-W |
| Dip | 80N |
| Length | 1.83M |
| Width | 1.83M |
| Development status | Past Producer |
|---|---|
| Commodity type | Both |
| Deposit size | Small |
| Significant | No |
| District name | Sylvania (Green Mountain) District |
|---|
| Ownership category | BLM Administrative Area |
|---|
| Year | 1963 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Period | 1963 | ||||||||||||||
| Material | ORE W | ||||||||||||||
| Accuracy | Estimate | ||||||||||||||
| Description | Cp_Grade: ^Average, 0.2% Wo3 | ||||||||||||||
| |||||||||||||||
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| USGS | Mineral Resources Data System | MRDS | M242068 |
NBMG BULL 78, P. 63-64, 71.
USBM, 1963, UNPUBLISHED DATA ON THE FOUR ACES CLAIMS: NBMG FILE 102, ITEM 13.
TINGLEY, J.V., 1982, FIELD EXAMINATION, 17 AUGUST 1982
USBM, 1963.
| Subject category | Comment text |
|---|---|
| Deposit | PODS OF TACTITE CONTAINING SPARSE CRYSTALS OF SCHEELITE. PODS VARY FROM A FOOT TO 6 FT IN DIAMETER. LENSES OF GARNET-EPIDOTE SKARN, WITH GOSSAN. E-W SHEAR ZONE CUTS SKARN. MINE WORKINGS APPEAR TO BE ALIGNED ALONG THE E-W STRUCTURE. AT HEADFRAME ON N SIDE OF CANYON, MARBLE-SKARN BAND STRIKES N 50-60 W IS NEAR VERTICAL. ZONE IS ABOUT 100 FT WIDE AND HAS IRON OXIDE-STAINED GOUGE ZONES ALONG IT. |
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 01-SEP-1982 | 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.
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