Unnamed Occurrence (ARDF - ID057; southwest of VABM Caribou), Iditarod Mining District, Yukon-Koyukuk Census Area, Alaska, USAi
| Regional Level Types | |
|---|---|
| Unnamed Occurrence (ARDF - ID057; southwest of VABM Caribou) | - 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° 30' 57'' North , 157° 49' 26'' West
Latitude & Longitude (decimal):
Köppen climate type:
Mindat Locality ID:
200843
Long-form identifier:
mindat:1:2:200843:4
GUID (UUID V4):
ea2cdf0f-e24e-4a44-9bb6-88d054e2ee5c
Location: This occurrence is near the crest of an east-west trending ridge between the Otter and Caribou Creeks. It is about 1.5 mile southwest of triangulation station Caribou at an elevation of about 1,950 feet, and about 0.3 mile west of the center of section 16, T. 28 N., R. 46 W., of the Seward Meridian. The location is accurate.
Geology: This occurrence consists of iron-oxide-stained quartz veinlets in sandstone and in quartz-healed sandstone breccia of the Upper Cretaceous, Kuskokwim Group, that is cut by a granite-porphyry dike (Miller and Bundtzen, 1994; Miller, Bundtzen, and Gray, 2005). Sulfides are present but were not identified. The size and orientation of the mineralized zone is uncertain. Grab samples contained up to 1,200 parts per billion (ppb) silver, 200 ppb gold, 290 parts per million (ppm) antimony, 130 ppm arsenic, and 50 ppm niobium (McGimsey and others, 1988).
Workings: Surface samples were collected by the U.S. Geological Survey in 1986 (McGimsey and others, 1988).
Age: Unknown; the granite-porphyry dike at the occurrence has been dated at 52.8 Ma (Miller and Bundtzen, 1994).
Commodities (Major) - Ag, Au, Sb; (Minor) - As, Nb
Development Status: None
Deposit Model: Sn-polymetallic deposit or Polymetallic vein (Cox and Singer, 1986; model 20b o
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
1 valid mineral.
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 4 - Oxides and Hydroxides | |||
|---|---|---|---|
| ⓘ | Quartz | 4.DA.05 | SiO2 |
Other Databases
| Link to USGS - Alaska: | ID057 |
|---|
Other Regions, Features and Areas containing this locality
North America PlateTectonic Plate
- Farewell buried DomainDomain
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References
