Unnamed Occurrence (ARDF - ID150; southerly tributary of upper Black Creek), Iditarod Mining District, Yukon-Koyukuk Census Area, Alaska, USAi
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Latitude & Longitude (WGS84):
62° 29' 22'' North , 156° 14' 13'' West
Latitude & Longitude (decimal):
Köppen climate type:
Location: This occurrence is along a tributary of the Black River at an elevation of about 650 feet. It is about 3.2 miles north of VABM 2073/Hiblac and about 0.1 mile northeast of the center of section 25, T. 28 N., R. 38 W., of the Seward Meridian. The location is accurate.
Geology: This occurrence is of an apparently barren sandstone of the Upper Cretaceous, Kuskokwim Group (Miller and Bundtzen, 1994; Miller, Bundtzen, and Gray, 2005). A grab sample was taken for background metal values; it contained 460 parts per billion (ppb) mercury, 30 parts per million (ppm) arsenic, 20 ppm antimony, and 100 ppb silver (McGimsey and others, 1988).
Workings: Samples were collected by the U.S. Geological Survey in 1986 (McGimsey and others, 1988).
Commodities (Major) - Ag, Hg; (Minor) - As, Sb
Development Status: None
Commodity List
This is a list of exploitable or exploited mineral commodities recorded at this locality.List of minerals for each chemical element
Other Databases
| Link to USGS - Alaska: | ID150 |
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Other Regions, Features and Areas containing this locality
North AmericaContinent
North America PlateTectonic Plate
- Farewell buried DomainDomain
- Farewell TerranePassive Margin
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