| Deposit ID | 10020034 |
|---|---|
| MRDS ID | DC12213 |
| Record type | Site |
| Current site name | Woodruff Mine |
| Alternate or previous names | Trace Group |
| Geographic coordinates: | -112.24802, 40.36244 (WGS84) |
|---|---|
| Elevation | 2499 |
| Relative position | ABOUT 800 FEET N.25E. FROM LION HILL |
Political divisions (FIPS codes)
Tooele(county)
Utah(state)
United States(country)
North America(continent)
Land(continent)
USGS map quadrangles
Mercur(quadrangle 1:24,000 scale)
Rush Valley(quadrangle 1:100,000 scale)
Tooele(quadrangle 1:250,000 scale)
Hydrologic units (watersheds)
Rush-Tooele Valleys(hydrologic unit)
Great Salt Lake(hydrologic accounting unit)
Great Salt Lake(hydrologic subregion)
Great Basin(hydrologic region)
| Country | State | County |
|---|---|---|
| United States | Utah | Tooele |
| Meridian | Township | Range | Section | Fraction | State |
|---|---|---|---|---|---|
| Salt Lake | 005S | 004W | 25 | NW OF NW OF NW | Utah |
| Commodity | Importance |
|---|---|
| Silver | Primary |
| Lead | Primary |
| Gold | Secondary |
| Materials | Type of material |
|---|---|
| Cerargyrite | Ore |
| Gold | Ore |
| Plumbojarosite | Ore |
| Calcite | Gangue |
| Chlorite | Gangue |
| Dolomite | Gangue |
| Quartz | Gangue |
| Sericite | Gangue |
| Result | AG 130 OZ/TON (HIGH GRADE) |
|---|---|
| Result | AG 70 OZ/TON (LOW GRADE) |
| Host or associated | Host | ||
|---|---|---|---|
| Rock type | Sedimentary Rock > Carbonate > Limestone | ||
| Rock unit name | Great Blue Limestone;Long Trail Shale Member Of The Great Blue Limestone | ||
| Rock description | Great Blue Limestone;Long Trail Shale Mbr. Of The Great Blue Limestone | ||
| |||
| (1) | -112.24802, 40.36244 |
|---|
| Type of structure | Regional |
|---|---|
| Structure description | Basin And Range |
| Type of structure | Local |
| Structure description | Fissures And Fractures |
| General form | IRREGULAR |
|---|---|
| Dip | 75W |
| Length | 274.32M |
| Width | 1.83M |
| Development status | Past Producer |
|---|---|
| Commodity type | Metallic |
| Deposit size | Small |
| Significant | No |
| Year of last production | 1880 |
| District name | Ophir District; Lion Hill Area |
|---|
| Ownership category | Private |
|---|
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| USGS | Mineral Resources Data System | MRDS | DC12213 |
BISSELL, H.J., ET. AL., 1959, GUIDEBOOK TO THE GEOLOGY OF UTAH, NO. 14, UT. GEOL. SOC.: U.G.M.S. BULL. 14, 262P.
GILLULY, J., 1932, GEOLOGY AND ORE DEPOSITS OF THE STOCKTON AND FAIRFIELD QUADRANGLES: U.S.G.S. PROF. PA. 173, 167P.
BUTLER, B.S., ET. AL., 1920, THE ORE DEPOSITS OF UTAH: U.S.G.S. PROF. PA. 111, 672P.
SPURR, J.E., 1895, ECONOMIC GEOLOGY OF THE MERCUR MINING DISTRICT, UTAH: U.S.G.S. 16TH. ANN. REPT., PT. 2, 454P.
GILLULY, J., 1932, P. 140-141
| Subject category | Comment text |
|---|---|
| Deposit | MINERALIZED ZONE LIES JUST BELOW THE LONG TRAIL SHALE MEMBER, IN THE LOWER PART OF THE 'GREAT BLUE' LIMESTONE, ON THE EASTERN FLANK OF THE OPHIR ANTICLINE. THE ORE DEPOSIT OCCURS IN OR CLOSELY ASSOCIATED WITH THE JASPEROID. THE JASPEROID LIES IMMEDIATELY BENEATH A SILL OF 'BIRD'S EYE' PORPHYRY. THE ORE FOLLOWS THE NORTH-EASTERLY FISSURES IN THE JASPEROID. THE ORE IS PRACTICALLY ALL OXIDIZED. ; INFO.SRC : 1 PUB LIT; 3 FIELD OBSERV |
| Deposit | MINERALIZED ZONES ARE LOCATED IN FISSURES, IN ALTERED AND SHEARED WALLROCKS; ORE IS COMPLETLY OXIDIZED |
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 01-JUN-1981 | Mohammad, Hasan | Utah Geological and Mineral Survey |
Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.