Deposit ID | 10310304 |
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MRDS ID | M231296 |
Record type | Site |
Current site name | Surprise, Labrador, Bailey Day Mine Area |
Alternate or previous names | Bailey Day Claim Group, Angela claim group |
Related records | 10043983 |
Geographic coordinates: | -117.02872, 40.63129 (WGS84) |
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Elevation | 1570 |
Relative position | The Surprise, Labrador, Bailey Day Mine area is located about 5 miles west of the town of Battle Mountain, Nevada. |
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Country | State | County |
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United States | Nevada | Lander |
Meridian | Township | Range | Section | Fraction | State |
---|---|---|---|---|---|
Mount Diablo | 032N | 044E | 21 28 | Nevada |
Commodity | Importance |
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Gold | Primary |
Copper | Secondary |
Lead | Secondary |
Silver | Secondary |
Iron | Tertiary |
Materials | Type of material |
---|---|
Gold | Ore |
Pyrite | Ore |
Chalcopyrite | Ore |
Chrysocolla | Ore |
Malachite | Ore |
Azurite | Ore |
Tenorite | Ore |
Limonite | Ore |
Hematite | Ore |
Chlorite | Gangue |
Quartz | Gangue |
Calcite | Gangue |
Epidote | Gangue |
Garnet | Gangue |
Diopside | Gangue |
Clay | Gangue |
Goethite | Gangue |
Model code | 85 |
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USGS model code | 22c |
Deposit model name | Polymetallic veins |
Mark3 model number | 46 |
Model code | 64 |
USGS model code | 18f |
Deposit model name | Skarn Au |
Mark3 model number | 82 |
Host or associated | Host | ||
---|---|---|---|
Rock type | Sedimentary Rock > Clastic Sedimentary Rock > Sandstone | ||
Rock unit name | Harmony Formation | ||
|
Host or associated | Host | ||
---|---|---|---|
Rock type | Sedimentary Rock > Clastic Sedimentary Rock > Shale | ||
Rock unit name | Harmony Formation | ||
|
Host or associated | Host | ||
---|---|---|---|
Rock type | Metamorphic Rock > Skarn (Tactite) | ||
Rock type qualifier | garnet | ||
Rock unit name | Harmony Formation | ||
|
Host or associated | Host | ||
---|---|---|---|
Rock type | Sedimentary Rock > Clastic Sedimentary Rock > Conglomerate | ||
Rock unit name | Battle Formation | ||
|
Host or associated | Host | ||
---|---|---|---|
Rock type | Sedimentary Rock > Clastic Sedimentary Rock > Shale | ||
Rock type qualifier | calcareous | ||
Rock unit name | Harmony Formation | ||
|
Host or associated | Host | ||
---|---|---|---|
Rock type | Sedimentary Rock > Clastic Sedimentary Rock > Sandstone | ||
Rock type qualifier | calcareous | ||
Rock unit name | Harmony Formation | ||
|
Host or associated | Host | ||
---|---|---|---|
Rock type | Metamorphic Rock > Hornfels | ||
Rock type qualifier | calc-silicate and siliceous | ||
Rock unit name | Battle Formation | ||
|
Host or associated | Host | ||||
---|---|---|---|---|---|
Rock unit name | Antler Peak Limestone | ||||
|
Host or associated | Associated | ||
---|---|---|---|
Rock type | Sedimentary Rock > Clastic Sedimentary Rock > Conglomerate | ||
Rock type qualifier | conglomerate | ||
Rock unit name | Battle Formation | ||
|
Host or associated | Associated | ||||
---|---|---|---|---|---|
Rock type | Sedimentary Rock > Carbonate > Limestone | ||||
Rock type qualifier | limestone | ||||
Rock unit name | Antler Peak Limestone | ||||
|
Host or associated | Associated | ||
---|---|---|---|
Rock type | Plutonic Rock > Porphyry | ||
Rock type qualifier | quartz-feldspar dikes | ||
|
Host or associated | Associated | ||
---|---|---|---|
Rock type | Plutonic Rock > Granitoid > Granodiorite | ||
Rock type qualifier | granodiorite | ||
|
(1) | -117.02872, 40.63129 |
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Type | Description | Terms |
---|---|---|
Regional | Numerous regional scale thrust faults are present in the mine area, in particular along the contact between the Harmony and Battle Formations | |
Local | The NNE-striking Copper King fault zone and the WNW-striking Surprise fault. |
General form | tabular |
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Operation type | Surface-Underground |
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Development status | Past Producer |
Commodity type | Metallic |
Deposit size | Large |
Significant | Yes |
Discovery year | <1934 |
Year of first production | 1934 |
Year of last production | 2004 |
Production years | 1937, 1938, 1941, 1945, 1947, 1954, 1987-1993 |
District name | Battle Mountain District |
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Ownership category | Private |
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Area name | Battle Mountain BLM Administrative District |
Ownership category | BLM Administrative Area |
Type | Owner-Operator |
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Owner | Newmont Mining Corp. |
Year | 2004 |
Stewart, J. H., Mc Kee, E. H., and Stager, H. K., 1977, Geology and Mineral Deposits of Lander County, Nevada; NBMG Bull. 88
Roberts, R. J. and Arnold, D. C., 1965, Ore Deposits of the Antler Peak Quadrangle, Humboldt and Lander Counties, Nevada: U.S.G.S. Prof. Paper 459-B.
Schmidt, K. W., Wotruba, P. R., and Johnson, S. D., 1988, Gold-Copper Skarn and Related Mineralization at Copper Basin, Nevada, in Gold Deposits of North Central Nevada, Special Publication #8, the Geological Society of Nevada, Reno.
Battle Mountain Gold Company, 1988, Annual Report for 1987.
NBMG Mining District File 147, numerous press clippings.
Bulk-Mineable Precious Metal Deposits and Prospects in Nevada, NBMG Map 91.
NBMG, 1988, The Nevada Mineral Industry - 1987, NBMG Special Publication MI-1986-MI-1993.
Buffa, R. and Schafer, R., eds., 1988, Fall Field Trip Guidebook, the Geological Society of Nevada, Reno, p. 271-276.
USGS PP 459B
Doebrich and Theodore, 1996
Long, K.R., DeYoung, J.H., Jr., and Ludington, S.D., 1998, Database of significant deposits of gold, silver, copper, lead, and zinc in the United States; Part A, Database description and analysis; part B, Digital database: U.S. Geological Survey Open-File Report 98-206, 33 p., one 3.5 inch diskette.
Geological Society of Nevada, 1999, Geology and Gold Mineralization of the Buffalo Valley Area, Northwestern Battle Mountain Trend; GSN Special Publication No. 31, 1999 Fall field trip Guidebook.
Wendt, Clancy, 2004, Technical Report on the? ICBM/COPPER BASIN Property, Lander and Humboldt Counties, Nevada, Staccato Gold website, : http://www.staccatogold.com/i/pdf/icbm-43-101.pdf
Subject category | Comment text |
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Deposit | The Bailey Day deposit formed as a vein associated with a fault zone in a sandstone bed bounded by bedding-plane fault. Ore is associated with disseminated and fracture controlled oxidized pyrite in garnet skarn of the Harmony Formation and in lens-shaped calc-silicate horizons of the Battle Formation adjacent to mineralized structures. Ore at the Labrador and Surprise orebodies is principally localized along 2 faults: the NNE-striking Copper King fault zone and the WNW-striking Surprise fault. Most of the Bailey Day ore came from a sandstone bed bounded by bedding-plane faults and impregnated with secondary copper minerals. Model name could also be gold-or copper-bearing skarn. There are two other types of gold deposits. The gold-bearing skarns which may be related to mid-Oligocene intrusive activity and an example of this type is the Labrador deposit, which occurs in the northeast portion of Copper Basin. The other type is a silica-pyrite body with a lack of skarn and calc-silicate assemblage minerals. This deposit type develops in calcareous siltstones and sandstones of the Harmony Formation (Schmidt et al., 1988). The Surprise deposit ore primarily occurs within the Harmony Formation. It consists of strongly oxidized and retrograde altered garnet skarn developed within interbedded limestone, calcareous siltstone and sandstone. Two main faults have acted as conduits: the Copper King fault zone strikes northeast and dips 70-80? east; the Surprise fault strikes west-northwest and dips 85? north. Both faults show post-mineral offset (Schmidt et al., 1988). The Labrador deposit ore occurs in the garnet skarn of the Harmony Formation and also in the calc-silicate and siliceous hornfels of the lower Battle Formation. North-northeast and west-northwest high-angle normal faults localize mineralization (Schmidt et al., 1988) |
Type | Date | Name | Affiliation | Comment |
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Reporter | 01-FEB-2005 | 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. |