| Deposit ID | 10020035 |
|---|---|
| MRDS ID | DC12214 |
| Record type | Site |
| Current site name | Buffalo Mine |
| Alternate or previous names | Tintic Ophir Mines Co. |
| Related records | 10251736 |
| Geographic coordinates: | -112.2458, 40.35938 (WGS84) |
|---|---|
| Elevation | 2423 |
| Relative position | ABOUT 1000 FT S.63E. 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 | NE OF SW OF NW | Utah |
| Commodity | Importance |
|---|---|
| Lead | Primary |
| Silver | Primary |
| Zinc Critical | Secondary |
| Gold | Secondary |
| Copper | Secondary |
| Iron | Tertiary |
| Materials | Type of material |
|---|---|
| Cerargyrite | Ore |
| Chalcopyrite | Ore |
| Galena | Ore |
| Gold | Ore |
| Limonite | Ore |
| Malachite | Ore |
| Pyrite | Ore |
| Sphalerite | Ore |
| Calcite | Gangue |
| Dolomite | Gangue |
| Fluorite | Gangue |
| Gypsum | Gangue |
| Quartz | Gangue |
| Sericite | Gangue |
| Talc | Gangue |
| Result | 40-50 % PB; ABOUT 1 OZ. OF SILVER TO 1 %, PB. |
|---|
| Host or associated | Associated | ||||||
|---|---|---|---|---|---|---|---|
| Rock type | Plutonic Rock > Mafic Intrusive Rock > Diorite | ||||||
| Rock unit name | Birdseye Monzonite Porphyry | ||||||
| Rock description | Birdseye Monzonite Porphyry | ||||||
| |||||||
| Host or associated | Host |
|---|---|
| Rock type | Sedimentary Rock > Carbonate > Limestone |
| Rock unit name | Great Blue Limestones;Long Trail Shale |
| Rock description | Great Blue Limestones;Long Trail Shale |
| (1) | -112.2458, 40.35938 |
|---|
| Type of structure | Regional |
|---|---|
| Structure description | Basin And Range |
| Type of structure | Local |
| Structure description | Fissures, Fractures And Folds |
| General form | IRREGULAR |
|---|---|
| Strike | N25E |
| Dip | 25SE |
| General form | IRREGULAR |
|---|---|
| Dip | 25SE |
| General form | IRREGULAR |
|---|---|
| Dip | 25SE |
| Development status | Past Producer |
|---|---|
| Commodity type | Metallic |
| Deposit size | Small |
| Significant | No |
| Year of first production | 1916 |
| Year of last production | 1936 |
| District name | Ophir District; Lion Hill Area |
|---|
| Ownership category | Private |
|---|
| Type | Owner |
|---|---|
| Owner | George St. Clair |
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| USGS | Mineral Resources Data System | MRDS | DC12214 |
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. 139-140
| Subject category | Comment text |
|---|---|
| Deposit | THE MINE IS SITUATED IN THE LOWER PART OF THE 'GREAT BLUE' LIMESTONE, BELOW THE LONG TRAIL SHALE MEMBER. TWO SILLS OF 'BIRDSEYE' PORPHYRY ARE CUT BY THE LOWER ADIT, BUT THE ORE SEEMS TO BEAR NO RELATION WITH THEM. THE MINE IS DEVELOPED BY TWO ADITS ABOUT 280 FEET VERTICALLY APART, CONNECTED BY MEANS OF AN INCLINED RAISE AND DRIFTS. IN THE UPPER WORKINGS THE ORE SHOOTS CONNECTED WITH THOSE OF THE CHLORIDE POINT MINE, AND LARGE STOPES ARE DEVELOPED THROUGH JASPEROID WALLROCK. THE PRINCIPAL FISSURES IN THE LOWER WORKINGS OF THE MINE ARE THOSE FOLLOWED BY THE MCCLELLAN AND ST. CLAIR INCLINES. THE MCCLLELLAN INCLINE TRENDS N70E, THE ST. CLAIR S65E. THE CLARK INCLINE, JUST WEST OF THE MCCLELLAN, EXTENDS UP FROM THE LOWER OR BUFFALO TUNNEL LEVEL AS A CONTINUATION OF THE DRIFT FROM THE ST. CLAIR INCLINE AND CONNECTS, ON A LEVEL 200 FT HIGHER, WITH THE EAST SIDE TUNNEL. THE MINERALIZATION IS CONTROLLED BY FISSURES. SHOOT ON THE ST. CLAIR FISSURE WAS 2 FT. WIDE AND 12 FT. HIGH OF SOLID GALENA, |
| Deposit | BUT PINCHED OUT WHEN FOLLOWED. ON THE UPPER LEVELS THE ORE WAS ALL OXIDIZED, BUT IN THE LOWER PART OF THE MINE IT IS CHIEFLY SULFIDE ORE, ALTHOUGH SOME OXIDIZED MATERIAL IS ALSO FOUND EVER ON THE LOWEST LEVEL. ; INFO.SRC : 1 PUB LIT; 3 FIELD OBSERV |
| Deposit | ORE ZONES ARE LOCALIZED ALONG FISSURES AND FRACTURES IN DEFORMED AND ALTERED WALLROCKS; ORE ZONES EXTEND 6 TO 8 FT. INTO THE BEDDING FROM THE FISSURES. |
| 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.