| Deposit ID | 10045587 |
|---|---|
| MRDS ID | M233358 |
| Record type | Site |
| Current site name | Delmas Mine |
| Alternate or previous names | Sweepstakes, Como |
| Geographic coordinates: | -116.01869, 40.51463 (WGS84) |
|---|---|
| Relative position | W OF SYLVANIA, AROSS MOUNTAIN CREST |
Political divisions (FIPS codes)
Elko(county)
Nevada(state)
United States(country)
North America(continent)
Land(continent)
USGS map quadrangles
Ravens Nest(quadrangle 1:24,000 scale)
Battle Mountain(quadrangle 1:100,000 scale)
Winnemucca(quadrangle 1:250,000 scale)
Hydrologic units (watersheds)
Pine(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 | Elko |
| Meridian | Township | Range | Section | Fraction | State |
|---|---|---|---|---|---|
| Mount Diablo | 030W | 053E | 04 | Nevada |
| Commodity | Importance |
|---|---|
| Copper | Primary |
| Silver | Primary |
| Lead | Primary |
| Gold | Secondary |
| Zinc Critical | Secondary |
| Materials | Type of material |
|---|---|
| Bornite | Ore |
| Chalcocite | Ore |
| Chalcopyrite | Ore |
| Copper | Ore |
| Galena | Ore |
| Pyrite | Ore |
| Pyrrhotite | Ore |
| Sphalerite | Ore |
| Diopside | Gangue |
| Garnet | Gangue |
| Pyroxene | Gangue |
| Quartz | Gangue |
| Tremolite | Gangue |
| Zoisite | Gangue |
| Model code | 59 |
|---|---|
| USGS model code | 18b |
| Deposit model name | Skarn Cu |
| Mark3 model number | 8 |
| Host or associated | Associated | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Rock type | Plutonic Rock > Mafic Intrusive Rock > Quartz Diorite | ||||||||
| |||||||||
| Host or associated | Host |
|---|---|
| Rock type | Sedimentary Rock > Carbonate > Limestone |
| (1) | -116.01869, 40.51463 |
|---|
| General form | TABULAR TO IRREGULAR |
|---|---|
| Length | 609.6M |
| Width | 121.92M |
| Development status | Past Producer |
|---|---|
| Commodity type | Metallic |
| Deposit size | Small |
| Significant | No |
| Discovery year | 1906 |
| Year of first production | 1906 |
| District name | Railroad |
|---|
| Type | Operator |
|---|---|
| Owner | Delmas Copper Co |
| Type | Owner |
|---|---|
| Owner | Delmas Copper Co. |
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| USGS | Mineral Resources Data System | MRDS | M233358 |
EMMONS, W. H., 1910, A RECONNASSANCE OF SOME MINING CAMPS IN ELKO, LANDER AND EURELSA COUNTIES, NEVADA: USGS BULLETIN 408
SMITH, R. M., MINERAL RESOURCES OF ELKO COUNTY, NEVADA, USGS OPEN FILE REPORT 1976-56
SMITH, R. M., (1976)
| Subject category | Comment text |
|---|---|
| Deposit | TACTITE BODY AT CONTACT OF GRANITE PORPHYRY WITH LIMESTONE ALSO, SOME GOLD-BEARING QUARTZ VEINS. |
| Deposit | THE DELMAS COPPER CO., OWNER OF SEVERAL CLAIMS, DEVELOPED THEIR PROPERTY BY MEANS OF SHALLOW PITS AND ADITS TO EXPLORE THE COPPER ORE DEPOSITS IN THE TACTITE BODY WHICH EXTENDS IN A ZONE OVER 2000' LONG, AND 125'-400' WIDE. MUCH OF THE EARLY DEVELOPMENT WAS COMPLETED FROM 1906-1908. THIS ACTIVITY RESULTED IN THE SHIPPING OF ORE TO THE UTAH SMETTERS. THE SWEEPSTAKES CLAIM IS THE MOST EXTENSIVELY EXPLORED. ORE SHIPPED RAN AS HIGH AS 70 OZ. OF SILVER, 10.4% COPPER, AND 2.8% LEAD. THE HIGHEST GRADE ORE CARRIES CHALCOCITE COATED SULPHIDES ; INFO.SRC : 1 PUB LIT |
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 01-AUG-1979 | 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.