| Deposit ID | 10038079 |
|---|---|
| MRDS ID | M045355 |
| Record type | Site |
| Current site name | Key West |
| Alternate or previous names | Copper King District |
| Related records | 10124825 |
| Geographic coordinates: | -114.16692, 36.61805 (WGS84) |
|---|---|
| Elevation | 1160 |
| Relative position | 10 MI SSOUTHEAST OF RIVERSIDE IN THE SE CORNER OF NEVADA; 8 MI WEST OF THE ARIZONA BOUNDARY; 16 MI SOUTH OF BUNKERVILLE, 70 MI NORTHEAST OF LAS VEGAS |
Political divisions (FIPS codes)
Clark(county)
Nevada(state)
United States(country)
North America(continent)
Land(continent)
USGS map quadrangles
Whitney Pocket(quadrangle 1:24,000 scale)
Overton(quadrangle 1:100,000 scale)
Las Vegas(quadrangle 1:250,000 scale)
Hydrologic units (watersheds)
Lower Virgin(hydrologic unit)
Lower Colorado-Lake Mead(hydrologic accounting unit)
Lower Colorado-Lake Mead(hydrologic subregion)
Lower Colorado(hydrologic region)
| Country | State | County |
|---|---|---|
| United States | Nevada | Clark |
| Meridian | Township | Range | Section | Fraction | State |
|---|---|---|---|---|---|
| Mount Diablo | 015S | 070E | 21,22 | SE4 OF NE4 (21) OF SW4 OF NW4 (22) | Nevada |
| Commodity | Importance |
|---|---|
| Copper | Primary |
| Nickel Critical | Primary |
| Silver | Primary |
| Platinum Critical | Secondary |
| Cobalt Critical | Secondary |
| Palladium Critical | Secondary |
| Zinc Critical | Tertiary |
| Lead | Tertiary |
| Gold | Tertiary |
| Ruthenium Critical | Tertiary |
| Osmium | Tertiary |
| Materials | Type of material |
|---|---|
| Brochantite | Ore |
| Chalcanthite | Ore |
| Chalcopyrite | Ore |
| Chrysocolla | Ore |
| Cuprite | Ore |
| Erythrite | Ore |
| Garnierite | Ore |
| Magnetite | Ore |
| Malachite | Ore |
| Millerite | Ore |
| Pentlandite | Ore |
| Polydymite | Ore |
| Pyrite | Ore |
| Pyrrhotite | Ore |
| Limonite | Gangue |
| Microcline | Gangue |
| Quartz | Gangue |
| Result | CU=2.3%, NI=1.79%, CO=0.08%, PT=.13 OZ/TON (4.5 PPM), TR AU, AG FROM ONE CARLOAD OF ORE (91,600 LB). ONE SPECIMEN OF ORE NEAR SURFACE: PT=0.12 OZ/TON (4.1 PPM), NI=5.6% WITH NO AU, AG, OR CU. THE ORE CONTAINED 6% CU, 0.02 OZ AU (690 PPB), 2.0 OZ AG (69 PPM), 17 OZ PT (580 PPM), 0.22 OZ PD (7.5 PPM), 2.5 OZ NI, 1.5-4.0% CO/TON, WITH NO AS OR SB. (NBMG OPEN FILE DATA, 1932). SAMPLE WITH HIGHEST PT HAD 0.55 OZ/TON (19 PPM). AVERAGE 0.3% NI. 22-55 PPM PGE IN 100% SULFIDE (BOW AND LOUCKS) |
|---|
| Host or associated | Associated | ||||
|---|---|---|---|---|---|
| Rock type | Metamorphic Rock > Gneiss | ||||
| |||||
| Host or associated | Host |
|---|---|
| Rock type | Plutonic Rock > Pegmatite |
| (1) | -114.16692, 36.61805 |
|---|
| Type of structure | Regional |
|---|---|
| Structure description | Key West Thrust |
| Type of structure | Local |
| Structure description | A Fault Lies At A Depth Of 450 Ft At Key West, Numerous Small Faults |
| General form | DISSEMINATED, PODS AND LENTICULAR MASES IN AMPHIBOLITE DIKE |
|---|---|
| Strike | N70E |
| Dip | VERTICAL |
| Length | 60.96M |
| Width | 45.72M |
| Development status | Past Producer |
|---|---|
| Commodity type | Metallic |
| Deposit size | Small |
| Significant | No |
| Discovery year | 1897 |
| Production years | 1908-1935 |
| District name | Bunkerville District |
|---|
| Type | Owner |
|---|---|
| Owner | Key West Mining Co. |
| Type | In-situ | |||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Estimate year | 1989 | |||||||||||||||||||||||||||||||||||
| Total resources | 108000mt ore | |||||||||||||||||||||||||||||||||||
| ||||||||||||||||||||||||||||||||||||
| Type of workings | Surface/Underground |
|---|---|
| Length | 914.4M |
| Overall depth | 95.1M |
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| USGS | Mineral Resources Data System | MRDS | M045355 |
BANCROFT, HOWLAND, 1910, PLATINUM IN SOUTHEASTERN NEVADA, IN CONTRIBUTIONS TO ECONOMIC GEOLOGY 1909: U.S. GEOLOGICAL SURVEY BULLETIN 430, P. 192-199.
BEAL, L.H., 1965, GEOLOGY AND MINERAL DEPOSITS OF THE BUNKERVILLE MINING DISTRICT, CLARK COUNTY, NEVADA: NEVADA BUREAU OF MINES BULLETIN 63, P. 63-74.
NEVADA BUREAU OF MINES AND GEOLOGY, OPEN FILE DATA, FILE NO. 23, ITEM NOS. 2 AND 3.
NEEDHAM, A.B., SOULE, J.H., AND TRENGOVE, R.R., 1950, INVESTIGATION OF THE GREAT EASTERN NICKEL DEPOSIT, CLARK COUNTY, NEV.: U.S. BUREAU OF MINES REPORT OF INVESTIGATIONS 4679, 5 P.
CORNWALL, H.R., 1966, NICKEL DEPOSITS OF NORTH AMERICA: U.S. GEOLOGICAL SURVEY BULLETIN 1223, P. 46-47.
LONGWELL, C.R., PAMPEYAN, E.H., BOWYER, BEN, AND ROBERTS, R.J., 1965, GEOLOGY AND MINERAL DEPOSITS OF CLARK COUNTY, NEVADA: NEVADA BUREAU OF MINES BULLETIN 62, P. 179.
BOW, C.S., AND LOUCKS, R.R., 1991, THE KEY WEST MINE: A PROTEROZOIC MAGMATIC/HYDROTHERMAL NI-CU-PGE DEPOSIT IN NEVADA [ABS.]: PACIFIC NORTHWEST METALS & MINERALS CONFERENCE ABSTRACTS
LONGWELL AND OTHERS, 1965,
C. BOW, WRITTEN COMMUN. TO M.L. ZIENTEK, 1991
| Subject category | Comment text |
|---|---|
| Deposit | Discovery Year: LATE 1890'S |
| Deposit | THE DEPOSITS PROBABLY ARE LATE MAGMATIC DIFFERENTIATES REMOBILIZED BY HYDROTHERMAL PROCESSES. ATTITUDE IS OF HOST DIKE; UNPUBLISHED MODEL NAME: MAGMATIC SEGREGATION. |
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 01-FEB-1975 | Blair, Will N. | U.S. Geological Survey | |
| Updater | 01-FEB-1983 | Lyles, B.F. (Tingley, J.V.) | U.S. Geological Survey | |
| Updater | 01-OCT-1991 | Peterson, Jocelyn A. | U.S. Geological Survey |
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.