| Deposit ID | 10027031 |
|---|---|
| MRDS ID | M001755 |
| Record type | Deposit |
| Current site name | Safford Deposit |
| Alternate or previous names | Kennecott Safford, Lone Star Mine |
| Geographic coordinates: | -109.60565, 32.94177 (WGS84) |
|---|---|
| Relative position | 10 MI NE OF SAFFORD. |
Political divisions (FIPS codes)
Graham(county)
Arizona(state)
United States(country)
North America(continent)
Land(continent)
USGS map quadrangles
Lone Star Mountain(quadrangle 1:24,000 scale)
Safford(quadrangle 1:100,000 scale)
Silver City(quadrangle 1:250,000 scale)
Hydrologic units (watersheds)
Upper Gila-San Carlos Reservoir(hydrologic unit)
Upper Gila(hydrologic accounting unit)
Upper Gila(hydrologic subregion)
Lower Colorado(hydrologic region)
| Country | State | County |
|---|---|---|
| United States | Arizona | Graham |
| Meridian | Township | Range | Section | Fraction | State |
|---|---|---|---|---|---|
| Gila and Salt River | 006S | 027E | 05 | Arizona |
| Commodity | Importance |
|---|---|
| Copper | Primary |
| Molybdenum | Primary |
| Gold | Secondary |
| Silver | Secondary |
| Lead | Secondary |
| Zinc Critical | Secondary |
| Materials | Type of material |
|---|---|
| Antlerite | Ore |
| Bornite | Ore |
| Brochantite | Ore |
| Chalcanthite | Ore |
| Chalcocite | Ore |
| Chalcopyrite | Ore |
| Chrysocolla | Ore |
| Covellite | Ore |
| Cuprite | Ore |
| Galena | Ore |
| Gold | Ore |
| Malachite | Ore |
| Molybdenite | Ore |
| Pyrite | Ore |
| Sphalerite | Ore |
| Tenorite | Ore |
| Tetrahedrite | Ore |
| Turquoise | Ore |
| Alunite | Gangue |
| Goethite | Gangue |
| Hematite | Gangue |
| Jarosite | Gangue |
| Limonite | Gangue |
| Magnetite | Gangue |
| Quartz | Gangue |
| Result | CPY:PY=2:1 IN PRIMARY ORE ZONE, PYRITE IS 0.2-1.0% OF ORE BODY BY VOLUME |
|---|
| Model code | 53 |
|---|---|
| USGS model code | 17 |
| Deposit model name | Porphyry Cu |
| Mark3 model number | 4 |
| Host or associated | Associated | ||||
|---|---|---|---|---|---|
| Rock type | Plutonic Rock > Granitoid > Quartz Monzonite | ||||
| Rock unit name | Lone Star Pluton | ||||
| Rock description | Lone Star Pluton | ||||
| |||||
| Host or associated | Associated |
|---|---|
| Rock type | Plutonic Rock > Mafic Intrusive Rock > Diorite |
| Host or associated | Host |
|---|---|
| Rock type | Plutonic Rock > Mafic Intrusive Rock > Diorite |
| Host or associated | Host |
|---|---|
| Rock type | Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Rhyolite |
| Host or associated | Host |
|---|---|
| Rock type | Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Dacite |
| Host or associated | Host |
|---|---|
| Rock type | Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Latite |
| (1) | -109.60565, 32.94177 |
|---|
| Type of structure | Local |
|---|---|
| Structure description | Lone Star Shear Zone 6000 Ft Wide And 16,000 Ft Long, Strikes N50- 65e, Steep To Vertical Dip |
| Thickness | 457.2M |
|---|---|
| Length | 6096M |
| Width | 2743.2M |
| Depth to top | 304.8M |
| Depth to bottom | 762M |
| Operation type | Surface-Underground |
|---|---|
| Development status | Past Producer |
| Commodity type | Metallic |
| Deposit size | Medium |
| Significant | Yes |
| Discovery year | 1899 |
| Production years | 1899-1939 |
| District name | Lone Star District |
|---|
| Ownership category | Private |
|---|
| Type | Owner |
|---|---|
| Owner | Kennecott |
| Type | In-situ | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Estimate year | 1974 | ||||||||||||||
| Total resources | 136054000mt ore | ||||||||||||||
| |||||||||||||||
| Type of workings | Surface/Underground |
|---|---|
| Length | 914.4M |
| Overall depth | 245.06M |
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| USGS | Mineral Resources Data System | MRDS | M001755 | |
| USGS | Mineral Resources Data System | MRDS | US04095 | |
| USGS | Mineral Resources Data System | MRDS | D000319 |
Robinson, R.F. & A. Cook (1966), The Safford copper deposit, Lone Star mining district, Graham County, Arizona, in S.R. Titley and C.L. Hicks (editors), Geology of the porphyry copper deposits, southwestern North America, University of Arizona Press, Tucson: 251-266.
Langton J M, Williams S A 1982 - Structural, petrological and mineralogical controls for the Dos Pobres orebody, Lone Star Mining District, Graham County, Arizona: in Titley S R 1983 Advances in Geology of the Porphyry Copper Deposits, Southwestern North America University of Arizona Press, Tucson pp 335-352
The Porter GeoConsultancy webpage for Dos Pobres, Safford contains a description of the geology as of 8/4/2010.
http://www.portergeo.com.au/
Dunn, P.G. (1978) Geologic structure of the Safford district, Arizona, in Jenney, J.P., and Hauck, H.R., eds., Proceedings of the Porphyry Copper Symposium, Tucson, Arizona, March 18-20, 1976: Arizona Geological Society Digest: 11: 9-15.
Mindat.org contains a description of the Safford deposit as of 8/4/2010.
http://www.mindat.org/loc-53634.html
Cook And Robinson, 1962, N. Mex. Geol. Soc. 13th Field Conf. Guidebook.
USGS Pp 424-C, P. 151-153.
Abm Bull 180, P. 230-238.
Yarter, W.V. (1981) Geology, geochemistry, alteration, and mass transfer in the Sol prospect, a sub-economic porphyry copper-molybdenum deposit, Safford district, Graham County, Arizona: Tucson, University of Arizona, M.S. thesis, 136 p.
Admr Sr No 2, P. 83-87.
Laine, 1974, M.S. Thesis, Univ Of Az.
Bolin, 1976, M.S. Thesi S, Univ Of Az.
Dewhurst, 1976, M.S. Thesis, Univ Of Az.
Valentine, 19??, M.S. Thesis, Univ Of Utah.
World Mining, V. 29, No. 4, P. 139.
Cimri
World Mining, 1974, P. 139.
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 01-FEB-83 | Peterson, Jocelyn A. | U.S. Geological Survey | |
| Updater | 12-SEP-94 | Orris, Greta J. | 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.