| Deposit ID | 10037387 |
|---|---|
| MRDS ID | M032088 |
| Record type | Site |
| Current site name | Culverwell Mine |
| Alternate or previous names | History Repeats Claims, Del Claims, NBMG Sample Locations 1756, 1757. |
| Related records | 10173648 |
| Geographic coordinates: | -114.74584, 37.47719 (WGS84) |
|---|---|
| Relative position | 1.7 MILES E OF MAGNOLIA MINE |
Political divisions (FIPS codes)
Lincoln(county)
Nevada(state)
United States(country)
North America(continent)
Land(continent)
USGS map quadrangles
Slidy Mountain(quadrangle 1:24,000 scale)
Clover Mountains(quadrangle 1:100,000 scale)
Caliente(quadrangle 1:250,000 scale)
Hydrologic units (watersheds)
Dry Lake Valley(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 | Lincoln |
| Meridian | Township | Range | Section | Fraction | State |
|---|---|---|---|---|---|
| 05S | 65E | 31 | Nevada |
| Commodity | Importance |
|---|---|
| Gold | Primary |
| Silver | Primary |
| Materials | Type of material |
|---|---|
| Gold | Ore |
| Chlorite | Gangue |
| Pyrite | Gangue |
| Sericite | Gangue |
| Result | 5 TONS ORE CONTAINED 1.44 OZ/T AU AND 2.31 OZ/T AG. SAMPLES 1756 AND 1757 CONTAIN, RESPECTIVELY, 200 AND 300 PPM MN, 7 AND 5 PPM AG, 150 AND 100 PPM AS, 20 PPM PB, 30 AND 10 PPM Y, 200 AND 0 PPM ZN, 100 AND 200 PPM ZR. |
|---|
| Model code | 150 |
|---|---|
| USGS model code | 25c |
| Deposit model name | Epithermal vein, Comstock |
| Mark3 model number | 16 |
| Host or associated | Associated | ||
|---|---|---|---|
| Rock type | Plutonic Rock | ||
| |||
| Host or associated | Host |
|---|---|
| Rock type | Metamorphic Rock > Metasedimentary Rock > Quartzite |
| (1) | -114.74584, 37.47719 |
|---|
| Type of structure | Regional |
|---|---|
| Structure description | Abundant Normal Faults |
| General form | TABULAR |
|---|---|
| Strike | 1 VEIN, S40E; 2ND VEIN, S50E |
| Dip | 74-88 SW (2ND VEIN) |
| General form | TABULAR |
|---|---|
| Dip | 74-88 SW (2ND VEIN) |
| Development status | Producer |
|---|---|
| Commodity type | Metallic |
| Deposit size | Small |
| Significant | No |
| Discovery year | 1932 |
| Discoverer | John E. And Alvin Ferguson, Farmers From Pahranagat Valley. |
| Year of first production | 1933 |
| District name | Delamar (Ferguson) District District |
|---|
| Ownership category | Private |
|---|
| Type | Owner |
|---|---|
| Owner | Willard Pete, Et Al., Box 483, Caliente, Nv. ; And Tim Watt, 1906 Wilt Road, Fallbr |
| First year | 1974 |
| Year | 1932 | |||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Material | ORE | |||||||||||||||||||||
| Accuracy | Accurate | |||||||||||||||||||||
| Description | Ap_Grade: ^1.44 Oz Au, 2.31 Oz Ag/Ton | |||||||||||||||||||||
| ||||||||||||||||||||||
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| USGS | Mineral Resources Data System | MRDS | M032088 |
CALLAGHAN, E., 1937, GEOLOGY OF THE DELAMAR DISTRICT, LINCOLN CO, NEV. NEV BUR MINES V 31 NO. 5 P. 68-69
TSCHANZ, C.M., AND PAMPEYAN, E.H., 1970, GEOLOGY AND MINERAL DEPOSITS OF LINCOLN CO, NEV., NEV. BUR MINES BULL 73, P. 171.
BENTZ, J. AND SMITH, P., 1983, FIELD EXAMINATION REPORT, OCT 2, 1983.
CALLAGHAN, 1937
| Subject category | Comment text |
|---|---|
| Deposit | DUMP IS COMPOSED OF SILICIFIED QUARTZITE CUT BY A RANDOM NETWORK OF WHITE TO VITREOUS GREY QUARTZ VEINS. SOME VEINS ARE BANDED, OPEN-CENTERED AND ENCLOSE BRECCIA FRAGMENTS OF QUARTZITE AND MONZONITE PORPHYRY INTRUSIVE (?) ROCK. THE FRAGMENTS OF QUARTZITE AND INTRUSIVE ARE ALTERED AND IRON STAINED.PYRITE AND CLOTS OF MN OXIDES ARE CONTAINED IN THE VEIN MATERIAL. QUARTZITE FRAGMENTS IN THE BRECCIA HAVE DEVELOPED SERICITE AND CHLORITE IN RESPONSE TO METAMORPHISM AND COMMONLY CONTAIN FINELY DISSEMINATED PYRITE. UPPER ADIT BEGINS IN AN OUTCROP OF QUARTZITE AND DIRTY QUARTZITE BEDS 1-3 FT WIDE, STRIKING N40W, DIP 55SW. IN GENERAL THE ROCKS ARE MORE POORLY SORTED WITH A HIGHER MATRIX CONTENT THAN USUAL IN THE PROSPECT MTN QUARTZITE. MOST OF THE DUMP CONSISTS OF QUARTZ-CEMENTED QUARTZITE, RED AND BROWN SANDSTONE AND SILTSTONE BRECCIA. THE BRECCIA FRAGMENTS ARE TYPICALLY CEMENTED BY VUGGY BANDED QUARTZ WITH PRISMATIC TERMINATED QUARTZ CRYSTALS FILLING CENTRAL CAVITIES BETWEEN FRAGMENTS. ALSO |
| Deposit | COARSE WHITE AND GREY CALCITE, QUARTZ AFTER CALCITE, BANDED CHALCEDONIC QUARTZ AND MANGANOSIDERITE ARE COMMONLY FOUND AS GANGUE VEIN MINERALS ON THE DUMP. CROSSCUTTING BRECCIA VEINS AND SPLAYED BANDED VEINS INDICATE SPLITTING OF LAMINATED HOST DURING VEIN EMPLACEMENT AND SUCCESSIVE VEINING AND BRECCIATION OF THE HOST ROCK. MN OXIDES COAT QUARTZ MATERIAL AND PYRITE AND BARITE WERE OBSERVED AS MINOR CONSTITUENTS OF THE QUARTZ AND CALCITE VEIN. THE UPPER CAVED SHAFT (NOT SHOWN ON TOPO MAP) EXPOSED A N45W VERTICAL OR STEEPLY SW-DIPPING BANDED QUARTZ/CALCITE VEIN ABOUT 3-4 FT WIDE. THE VEIN IS BRECCIATED AND FRACTURED AND INTRUDES RED-BROWN DIRTY QUARTZITES AND SANDSTONES. |
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 01-NOV-1979 | Harner, Joy L. (Roberts, Ralph J.) | U.S. Geological Survey | |
| Updater | 01-AUG-1984 | La Pointe, D.D. (Tingley, J.V.) | U.S. Geological Survey |
Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.
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