| Deposit ID | 10310449 |
|---|---|
| Record type | Site |
| Current site name | Horseshoe Mine |
| Alternate or previous names | Horseshoe/Galaxy Mine, part of Mooney Basin Mine Area |
| Related records | 10310448, 10310450, 10310451 |
| Geographic coordinates: | -115.5014, 39.9196 (WGS84) |
|---|---|
| Elevation | 2125 |
| Relative position | The mine is located about 110 kilometers (60 miles) northwest of Ely, Nevada and about 110 kilometers (60 miles) south-southeast of Elko, Nevada. Lat/long from Rockwell and Hofstra, 2008, and Nutt and Hofstra, 2007. |
Political divisions (FIPS codes)
White Pine(county)
Nevada(state)
United States(country)
North America(continent)
Land(continent)
USGS map quadrangles
Big Bald Mountain(quadrangle 1:24,000 scale)
Newark Lake(quadrangle 1:100,000 scale)
Ely(quadrangle 1:250,000 scale)
Hydrologic units (watersheds)
Long-Ruby Valleys(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 | White Pine |
| Meridian | Township | Range | Section | Fraction | State |
|---|---|---|---|---|---|
| Mount Diablo | 024N | 057E | 25 | Nevada |
| Commodity | Importance |
|---|---|
| Gold | Primary |
| Materials | Type of material |
|---|---|
| Gold | Ore |
| Model code | 173 |
|---|---|
| USGS model code | 26a.1 |
| Deposit model name | Sediment-hosted Au |
| Mark3 model number | 17 |
| Host or associated | Host | ||||
|---|---|---|---|---|---|
| Rock type | Sedimentary Rock | ||||
| Rock unit name | Pilot Shale | ||||
| |||||
| Host or associated | Associated |
|---|---|
| Rock type | Plutonic Rock > Porphyry |
| Rock type qualifier | Intrusive quartz |
| (1) | Mixed breccias including volcanic, thrust, jasperoid, and landslide megabreccia |
|---|
| Type of structure | Regional |
|---|---|
| Structure description | The Bald Mountain district is located in an area of thinned crust along the eastern side of the Late Proterozoic rift that split the North American craton. It is also in the west-central portion of the Late Devonian-Early Mississippian Antler foreland basin, and near the eastern edge of deformation related to the late Paleozoic Humboldt orogeny To the west of the Bald Mountain district, geologic interpretations are dominated by recognition of Paleozoic deformation, whereas to the east, interpretations emphasize Mesozoic contraction and plutonism and Tertiary extension. |
| Type of structure | Local |
| Structure description | At Galaxy, the dominant structure controls are |
| Operation type | Surface |
|---|---|
| Development status | Producer |
| Commodity type | Metallic |
| Deposit size | Small |
| Significant | Yes |
| Discoverer | Lyle Campbell |
| Year of first production | 1991 |
| Year of last production | 1992 |
| Production years | 1991-1992 |
| District name | Bald Mountain District |
|---|
| Ownership category | BLM Administrative Area |
|---|---|
| Area name | Ely BLM district |
| Type | Owner-Operator |
|---|---|
| Owner | Barrick Gold Corp. |
| Year | 2006 |
Rockwell, Barnaby W. and Hofstra, Albert H., 2008, Identification of quartz and carbonate minerals across northern Nevada using ASTER thermal infrared emissivity data?Implications for geologic mapping and mineral resource investigations in well-studied and frontier areas; Geosphere; February 2008; v. 4; no. 1; p. 218-246, Plate 12. http://geosphere.geoscienceworld.org/cgi/content/full/4/1/218/DC1
USMX, 1990, Annual report for 1989.
Nutt, C. J. and Hofstra, A. H., 2007, Bald Mountain Gold Mining District, Nevada: A Jurassic Reduced Intrusion-Related Gold System; Economic Geology, v. 102, pp. 1129?1155. http://econgeol.geoscienceworld.org/cgi/reprint/102/6/1129.pdf
USMX, 1992, Annual report for 1991
NBMG MI-88 through MI-02
NBMG Map 91, 2nd, 3rd
DEIS, 1995
FEIS, 1995
Amer. Mines (1991-92), 1991 thru Amer. Mines (2000), 2001
Nevada Land Status, 1990
Nutt, C.J., Hofstra, A.H., Hart, K.S., and Mortensen, J.K., 2000, Structural setting and genesis of gold deposits in the Bald Mountain-Alligator Ridge area, east-central Nevada, in Cluer, J.K., Price, J.G., Struhsacker, E.M., Hardyman, R.F., and Morris, C.L., eds., Geology and Ore Deposits 2000: The Great Basin and Beyond: Geological Society of Nevada Symposium Proceedings, May 15-18, 2000, p. 513-537.
Hitchborn and others, 1996, Geology and Gold Deposits of the Bald Mountain Mining District, White Pine County, Nevada, in Geology and Ore Deposits of the American Cordillera Symposium Proceedings, eds. A. Coyner and P. Fahey.
The Geological Society of Nevada 1996 Spring Field trip, Geology and Gold Deposits of Eastern Nevada, GSN Special Publication No. 23.
NBMG MI-91 thru MI-00
DEIS, 1995
FEIS, 1995
Nevada Land Status, 1990;
BLM, 2004, Bald Mountain Mine Exploration Program Programmatic Environmental Assessment NV040-04-023, Case File # N78825.
| Subject category | Comment text |
|---|---|
| Deposit | Horseshoe has dominant trends of N4050W that are about parallel to the Bida trend. |
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 01-NOV-2004 | LaPointe, D.D. | Nevada Bureau of Mines and Geology | |
| Editor | 01-SEP-2007 | Schruben, Paul G. | U.S. Geological Survey | Converted from S&A FileMaker format to Oracle. Edit checks on rocks, units, and ages with Geolex search, and other fields. |
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.