| Deposit ID | 10042469 |
|---|---|
| MRDS ID | M060273 |
| Record type | Site |
| Current site name | Last Chance Mine |
| Alternate or previous names | Strode Mine, NBMG Sample Site 2843, 2845 |
| Related records | 10222707 |
| Geographic coordinates: | -118.44792, 40.66406 (WGS84) |
|---|---|
| Relative position | 7000 FT S 62 DEGREES E OF CREST OF MAJUBA HILL |
Political divisions (FIPS codes)
Pershing(county)
Nevada(state)
United States(country)
North America(continent)
Land(continent)
USGS map quadrangles
Majuba Mountain(quadrangle 1:24,000 scale)
Eugene Mountains(quadrangle 1:100,000 scale)
Lovelock(quadrangle 1:250,000 scale)
Hydrologic units (watersheds)
Lower 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 | Pershing |
| Meridian | Township | Range | Section | Fraction | State |
|---|---|---|---|---|---|
| Mount Diablo | 032N | 031E | 01 | Nevada |
| Commodity | Importance |
|---|---|
| Silver | Primary |
| Lead | Primary |
| Zinc Critical | Secondary |
| Gold | Secondary |
| Copper | Secondary |
| Materials | Type of material |
|---|---|
| Galena | Ore |
| Pyrite | Ore |
| Smithsonite | Ore |
| Sphalerite | Ore |
| Tetrahedrite | Ore |
| Hornblende | Gangue |
| Result | OXIDIZED ORE: 17 OZ AG, $1.50 OZ AU, 5% PB PER TON UNOXIDIZED: 30 OZ. AG, $2 AU, 15% PB PER TON |
|---|
| Model code | 273 |
|---|---|
| USGS model code | 36a |
| Deposit model name | Low-sulfide Au-quartz vein |
| Mark3 model number | 27 |
| Host or associated | Associated | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Rock type | Volcanic Rock (Aphanitic) > Intermediate Volcanic Rock > Andesite | ||||||||
| |||||||||
| Host or associated | Host |
|---|---|
| Rock type | Sedimentary Rock > Carbonate > Limestone |
| (1) | -118.44792, 40.66406 |
|---|
| Type of structure | Regional |
|---|---|
| Structure description | Last Chance Fault |
| Type of structure | Local |
| Structure description | Nw Trending Shear Zone |
| General form | TABULAR |
|---|---|
| Strike | N45W |
| Dip | 45-72 SW |
| Thickness | 1.22M |
| Development status | Past Producer |
|---|---|
| Commodity type | Metallic |
| Deposit size | Small |
| Significant | No |
| Discovery year | 1906 |
| Year of first production | 1906 |
| District name | Antelope District |
|---|
| Ownership category | Private |
|---|
| Type | Owner |
|---|---|
| Owner | Strode, Frank |
| Home office | Grass Valley, Nv |
| First year | 1984 |
| Year | 1928 | |||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Period | 1906-1928 | |||||||||||||||||||||
| Material | ORE AG PB | |||||||||||||||||||||
| Accuracy | Estimate | |||||||||||||||||||||
| Description | Cp_Grade: ^40 Oz/Ton Ag, 8% Pb | |||||||||||||||||||||
| ||||||||||||||||||||||
| Type of workings | Underground |
|---|---|
| Length | 252.98M |
| Overall depth | 35.66M |
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| USGS | Mineral Resources Data System | MRDS | M060273 |
JOHNSON, M.G., 1977, GEOLOGY AND MINERAL DEPOSITS OF PERSHING COUNTY, NEVADA; NBMG BULL. 89
STEVENS, D.L., 1971, THE GEOLOGY AND ORE DEPOSITS OF THE ANTELOPE (MAJUBA HILL) MINING DISTRICT, PERSHING COUNTY, NEVADA; UNR M.S. THESIS
MACKENZIE & BOOKSTROM, 1976, GEOLOGY OF THE MAJUBA HILL AREA, PERSHING COUNTY, NEVADA; NBMG BULL. 86
VANDERBURG, W.O., 1936, RECONNAISSANCE OF MINING DISTRICTS IN PERSHING COUNTY, NEVADA; US BUREAU OF MINES INF. CIRC. 6902
QUADE, JACK, 1984, FIELD EXAMINATION, 9/14/84
JOHNSON, M.G., 1977
| Subject category | Comment text |
|---|---|
| Deposit | THE MINE IS DEVELOPED ALONG QUARTZ VEINS AND REPLACEMENTS ALONG A SHEAR ZONE IN CLOSE PROXIMITY TO AN ANDESITE DIK-E. SULFIDE OCCUR IN THE QUARTZ AND IN BRECCIA. |
| Deposit | IN 1920 THE LAST CHANCE PROPERTY WAS ACQUIRED BY A GROUP FROM FRESNO, CALIF. IN 1935 THE PROPERTY WAS TAKEN OVER BY DETROIT INTERESTS. FROM 1906 TO 1928 IT WAS REPORTED TO HAVE HAD 1000 TONS OF ORE SHIPPED FROM THE PROPERTY AVERAGING 40 OZ/TON AG AND 8% PB. THE LAST CHANCE MINE IS DEVELOPED BY AN 830 FT. DEEP. THREE MINERALIZED VEINS AVERAGING 4 FEET IN WIDTH ARE EXPOSED IN THE TUNNEL. ; INFO.SRC : 1 PUB LIT; 2 UNPUB REPT; 3 FIELD OBSERV |
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 01-NOV-1979 | Harner, Joy L. (Roberts, Ralph J.) | Nevada Bureau of Mines and Geology | |
| Updater | 01-JUL-1985 | La Pointe, D.D. (Tingley, J.V.) | Nevada Bureau of Mines and Geology | |
| Updater | 01-OCT-1980 | Royse, Sue E. | 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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