| Deposit ID | 10103887 |
|---|---|
| MRDS ID | M060396 |
| Record type | Site |
| Current site name | Willard Group North |
| Alternate or previous names | NBMG Sample Site 2577 |
| Related records | 10295918 |
| Geographic coordinates: | -118.33709, 40.24851 (WGS84) |
|---|---|
| Elevation | 1433 |
| Relative position | 8 MI. E OF LOVELOCK |
Political divisions (FIPS codes)
Pershing(county)
Nevada(state)
United States(country)
North America(continent)
Land(continent)
USGS map quadrangles
Coal Canyon(quadrangle 1:24,000 scale)
Lovelock(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 | 028N | 032E | 25,26,35,36 | Nevada |
| Commodity | Importance |
|---|---|
| Gold | Primary |
| Silver | Primary |
| Copper | Secondary |
| Lead | Tertiary |
| Zinc Critical | Tertiary |
| Materials | Type of material |
|---|---|
| Gold | Ore |
| Silver | Ore |
| Galena | Gangue |
| Garnet | Gangue |
| Pyrite | Gangue |
| Quartz | Gangue |
| Sphalerite | Gangue |
| Result | SAMPLE 2577, DUMP GRAB, CONTAINS 0.7 % FE, 0.3 % MG, 2 % CA, 0.1 % TI, 150 PPM MN, 5 PPM AG, 500 PPM AS, 30 PPM B, 1500 PPM BA, 2 PPM BE, 50 PPM CR, 30 PPM CU, 7 PPM NI, 150 PPM PB, 30 PPM V, 15 PPM Y, 700 PPM ZN, 50 PPM ZR, AND 1.4 PPM AU, BY AA ANALYSIS. |
|---|
| Model code | 150 |
|---|---|
| USGS model code | 25c |
| Deposit model name | Epithermal vein, Comstock |
| Mark3 model number | 16 |
| Host or associated | Associated | ||||
|---|---|---|---|---|---|
| Rock type | Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Rhyolite | ||||
| |||||
| Host or associated | Associated |
|---|---|
| Rock type | Volcanic Rock (Aphanitic) > Mafic Volcanic Rock > Basalt |
| Host or associated | Host |
|---|---|
| Rock type | Metamorphic Rock > Metasedimentary Rock > Quartzite |
| Host or associated | Host |
|---|---|
| Rock type | Metamorphic Rock > Phyllite |
| Host or associated | Host |
|---|---|
| Rock type | Sedimentary Rock > Clastic Sedimentary Rock > Shale |
| Host or associated | Host |
|---|---|
| Rock type | Sedimentary Rock > Carbonate > Limestone |
| (1) | -118.33709, 40.24851 |
|---|
| General form | VEIN |
|---|---|
| Strike | N65E |
| Dip | 50-55NW |
| Development status | Past Producer |
|---|---|
| Commodity type | Metallic |
| Deposit size | Small |
| Significant | No |
| Discovery year | 1915 |
| District name | Willard District |
|---|
| Ownership category | Private |
|---|
| Type | Owner |
|---|---|
| Owner | Santa Fe Minerals And Western States Mining |
| First year | 1985 |
| Type of workings | Underground |
|---|---|
| Length | 396.24M |
| Overall depth | 30.48M |
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| USGS | Mineral Resources Data System | MRDS | M060396 |
JOHNSON, M.G., 1977, GEOLOGY AND MINERAL DEPOSITS OF PERSHING COUNTY, NEVADA; NBMG BULLETIN 89.
LINCOLN, 1923, MINING DISTRICTS & MINERAL RESOURCES OF NEVADA; NEVADA NEWSLETTER PUBLISHING COMPANY.
VANDERBURG, 1936, RECONNAISSANCE OF MINING DISTRICTS IN PERSHING COUNTY, NEVADA; USBM IC 6902.
WEED, W.H., 1922, "THE MINES HANDBOOK", VOL. XV, TUCKAHOE, N.Y. #5. BONHAM, H.F., 16 JUL 85, NBMG FIELD EXAMINATION AND SAMPLE ANALYSIS. #6. NBMG STAFF, 1985, NBMG OFR 85-3.
| Subject category | Comment text |
|---|---|
| Deposit | A NETWORK OF QUARTZ VEINLETS CONTAINS ORE CONSISTING OF FREE-MILLING GOLD AND SILVER IN COPPER-STAINED QUARTZ VEINS. ORE OCCURS IN CREVICES IN LIMESTONES AT AND NEAR THE CONTACT WITH THE UNDERLYING RHYOLITE. MINERALIZATION IS ALSO PRESENT IN BRECCIATED RHYOLITE CLOSE TO BASALT DIKES. ZONE UP TO 2 M WIDE OF ANASTOMOSING QUARTZ AND CALCITE VEINLETS AND STRINGERS DIPS 50-55W. SOME HYDROTHERMAL BRECCIA WITH ABUNDANT PYRITE. LATE-STAGE GREEN FLUORITE AND VERY LATE BARITE. PYRITE WAS THE ONLY VISIBLE SULFIDE MINERAL. |
| Deposit | THE WILLARD GROUP INCLUDES THE SHEEPHERDER (LARGEST PRODUCER), TREASURE HILL, AND NEVADA HONEY BEE MINES. GOLD WAS FIRST DISCOVERED AT THE SHEEPHERDER CLAIMS IN 1915, SOME SILVER & COPPER WERE PRODUCED FROM THE SAME AREA BETWEEN 1905 AND 1912. UNTIL 1951, GOLD AND SILVER WERE MINED IN SMALL QUANTITIES FROM CLAIMS IN THE WILLARD GROUP OF MINES. THE NETWORK OF QUARTZ VEINLETS WAS DEVELOPED BY NUMEROUS TUNNELS, SHAFTS, ADITS, AND SCATTERED WORKINGS TOTALING ABOUT 1300 FEET. ; INFO.SRC : 1 PUB LIT; 2 UNPUB REPT; 3 FIELD OBSERV |
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 01-JAN-1980 | Harner, Joy L. (Roberts, Ralph J.) | Nevada Bureau of Mines and Geology | |
| Updater | 01-APR-1987 | La Pointe, D.D. | U.S. Geological Survey |
Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.
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