Unnamed Prospect (ARDF - ID006; north of upper Billy Goat Creek), Iditarod Mining District, Yukon-Koyukuk Census Area, Alaska, USAi
Regional Level Types | |
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Unnamed Prospect (ARDF - ID006; north of upper Billy Goat Creek) | - not defined - |
Iditarod Mining District | Mining District |
Yukon-Koyukuk Census Area | Census Area |
Alaska | State |
USA | Country |
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Latitude & Longitude (WGS84):
62° 51' 59'' North , 157° 0' 21'' West
Latitude & Longitude (decimal):
KΓΆppen climate type:
Mindat Locality ID:
202179
Long-form identifier:
mindat:1:2:202179:2
GUID (UUID V4):
3e229d02-7396-4382-a95f-c872ae92ea0a
Location: This prospect is at an elevation of about 3,200 feet near the top of the steep headwall of a cirque that is north of the head one of the upper tributaries of Billy Goat Creek. The prospect is about 0.6 mile east-southeast of the northwest corner of section 17, T. 32 N., R. 41 W., of the Seward Meridian. The location is accurate.
Geology: This prospect consists of disseminated chalcopyrite with minor galena and sphalerite, and their oxidation products. The sulfides are in a N70E, high-angle fracture zone in andesite, which is a roof pendant over the western part of the 70.9 Ma, Beaver Mountain pluton (Bundtzen and Laird, 1982; Miller, and Bundtzen, 1994). No size or orientation of the mineralized zone is available. One grab sample of mineralization collected by the Alaska Division of Geological and Geophysical Surveys contained 55.3 parts per million (ppm) silver, 0.50 percent copper, 0.70 percent lead, 900 ppm zinc, 100 ppm bismuth, 200 ppm antimony, and 60 ppm tin (Bundtzen and Laird, 1982; Miller, Bundtzen, and Gray, 2005). Grab samples collected by Battle Mountain Mining Company contained up to 1,730 parts per billion (ppb) gold, 87.1 ppm silver, 589 ppm copper, 1.61 percent lead, 6,232 ppm zinc, and 319 ppm antimony (Szumigala, 1993).
Workings: Surface sampling was conducted by the Alaska Division of Geological and Geophysical Surveys and U.S. Geological Survey in 1979 and the mid 1980s. The prospect was investigated by Noranda Exploration in 1983 and by Battle Mountain Mining Company in 1990 (John Dunbier, oral communication, 1983; Szumigala, 1993).
Age: Undated; may be related to emplacement of the Beaver Mountains stock which has been dated at 70.3 Ma. (Bundtzen and Laird, 1982).
Commodities (Major) - Ag, Cu; (Minor) - Bi, Pb, Sb, Sn, Zn
Development Status: None
Deposit Model: Sn-polymetallic veins (Cox and Singer, 1986; model 20b).
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsCommodity List
This is a list of exploitable or exploited mineral commodities recorded at this locality.Mineral List
4 valid minerals.
Detailed Mineral List:
β Chalcopyrite Formula: CuFeS2 |
β Galena Formula: PbS |
β Quartz Formula: SiO2 |
β Sphalerite Formula: ZnS |
β 'Tourmaline' Formula: AD3G6 (T6O18)(BO3)3X3Z |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
Group 2 - Sulphides and Sulfosalts | |||
---|---|---|---|
β | Sphalerite | 2.CB.05a | ZnS |
β | Chalcopyrite | 2.CB.10a | CuFeS2 |
β | Galena | 2.CD.10 | PbS |
Group 4 - Oxides and Hydroxides | |||
β | Quartz | 4.DA.05 | SiO2 |
Unclassified | |||
β | 'Tourmaline' | - | AD3G6 (T6O18)(BO3)3X3Z |
List of minerals for each chemical element
B | Boron | |
---|---|---|
B | β Tourmaline | AD3G6 (T6O18)(BO3)3X3Z |
O | Oxygen | |
O | β Quartz | SiO2 |
O | β Tourmaline | AD3G6 (T6O18)(BO3)3X3Z |
Si | Silicon | |
Si | β Quartz | SiO2 |
S | Sulfur | |
S | β Chalcopyrite | CuFeS2 |
S | β Galena | PbS |
S | β Sphalerite | ZnS |
Fe | Iron | |
Fe | β Chalcopyrite | CuFeS2 |
Cu | Copper | |
Cu | β Chalcopyrite | CuFeS2 |
Zn | Zinc | |
Zn | β Sphalerite | ZnS |
Pb | Lead | |
Pb | β Galena | PbS |
Other Databases
Link to USGS - Alaska: | ID006 |
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Other Regions, Features and Areas containing this locality
North America PlateTectonic Plate
- Farewell buried DomainDomain
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