| Deposit ID | 10109609 |
|---|---|
| MRDS ID | M050374 |
| Record type | Site |
| Current site name | Alpha Mine |
| Alternate or previous names | Pima and Fries Groups |
| Related records | 10258865 |
| Geographic coordinates: | -111.10097, 31.9479 (WGS84) |
|---|---|
| Elevation | 1113 |
| Relative position | 4 MILES NW OF TWIN BUTTES |
Political divisions (FIPS codes)
Pima(county)
Arizona(state)
United States(country)
North America(continent)
Land(continent)
USGS map quadrangles
Twin Buttes(quadrangle 1:24,000 scale)
Sells(quadrangle 1:100,000 scale)
Nogales(quadrangle 1:250,000 scale)
Hydrologic units (watersheds)
Upper Santa Cruz(hydrologic unit)
Santa Cruz(hydrologic accounting unit)
Middle Gila(hydrologic subregion)
Lower Colorado(hydrologic region)
Federal lands
Bureau of Land Management(Bureau of Land Management AZ)
Bureau of Land Management AZ BLM(Type of land area)
BLM(Federal land areas administered by BLM)
| Country | State | County |
|---|---|---|
| United States | Arizona | Pima |
| Meridian | Township | Range | Section | Fraction | State |
|---|---|---|---|---|---|
| Gila and Salt River | 017S | 012E | 15 | Arizona |
| Commodity | Importance |
|---|---|
| Copper | Primary |
| Silver | Primary |
| Lead | Secondary |
| Gold | Secondary |
| Zinc Critical | Secondary |
| Materials | Type of material |
|---|---|
| Gold | Ore |
| Pyrite | Ore |
| Host or associated | Associated | ||||
|---|---|---|---|---|---|
| Rock type | Plutonic Rock > Granitoid > Quartz Monzonite | ||||
| |||||
| Host or associated | Host |
|---|---|
| Rock type | Volcanic Rock (Aphanitic) > Pyroclastic Rock > Volcanic Breccia (Agglomerate) |
| (1) | -111.10097, 31.9479 |
|---|
| Type of structure | Local |
|---|---|
| Structure description | Sedimentary Breccia Is Cut By Ruby Fault On Top Of The San Xavier Thrust. Quartz Monzonite Is Copped By Quartzite And Breccia |
| Width | 27.43M |
|---|
| Development status | Producer |
|---|---|
| Commodity type | Metallic |
| Deposit size | Small |
| Significant | No |
| Discovery year | 1876 |
| Year of first production | 1876 |
| Year of last production | 1954 |
| District name | Pima District |
|---|
| Type | Operator |
|---|---|
| Owner | Pima Mining Co. |
| First year | 1954 |
| Year | 1954 | |||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Period | 1876 - 1954 | |||||||||||||||||||||
| Material | ORE | |||||||||||||||||||||
| Accuracy | Estimate | |||||||||||||||||||||
| Description | Cp_Grade: ^6 % Cu, 1 Oz Ag/Ton, Minor Pb, Au | |||||||||||||||||||||
| ||||||||||||||||||||||
| Type of workings | Underground |
|---|---|
| Length | 2046.73M |
| Overall depth | 190.5M |
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| USGS | Mineral Resources Data System | MRDS | M050374 | |
| U.S. Bureau of Mines | Minerals Availability System | MAS | 0040190096 |
KEITH, S. B., 1974 , INDEX OF MINING PROPERTIES IN PIMA COUNTY, ARIZONA: ARIZONA BUREAU OF MINES BULLETIN 189 , P. 133 .
MAYUGA, M. N., 1942 , THE GEOLOGY AND ORE DEPOSITS OF THE HELMET PEAK AREA, PIMA COUNTY, ARIZONA: UNIV. ARIZ., PHD THESIS, P. 119 .
ABGMT CLIPPINGS FILE
( 8 ) ABM BULLETIN 189 , P. 133 .
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 01-DEC-1972 | Theodore, Ted G. | U.S. Geological Survey | |
| Updater | 01-OCT-1981 | Gest, Don E. | U.S. Geological Survey |
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.