Unnamed Occurrence (ARDF - ID051; northeast of hill 1095), Iditarod Mining District, Yukon-Koyukuk Census Area, Alaska, USAi
Regional Level Types | |
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Unnamed Occurrence (ARDF - ID051; northeast of hill 1095) | - 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° 44' 37'' North , 158° 15' 57'' West
Latitude & Longitude (decimal):
Köppen climate type:
Mindat Locality ID:
200837
Long-form identifier:
mindat:1:2:200837:3
GUID (UUID V4):
a48d2625-1386-4e72-ae73-533f38612eab
This occurrence is in the Innoko Wilderness of the Innoko Wildlife Refuge.
Location: This occurrence is at an elevation of 600 feet, about 1.4 mile northwest of hill 930 and 1.3 mile northeast of hill 725, about 0.2 mile northeast of the southwest corner of section 27, T. 31 N., R. 48 W., of the Seward Meridian. The location is accurate.
Geology: Upper Cretaceous or Tertiary rhyolitic tuff of the Yetna River volcanic field contains anomalous concentrations of several metals (Miller and Bundtzen, 1994; Miller, Bundtzen, and Gray, 2005). Grab samples of rhyolitic tuff contain up to 100 parts per million (ppm) niobium, 50 ppm tin, 15 ppm beryllium, and 150 ppm lead (McGimsey and others, 1988). No ore minerals were recognized.
Workings: Samples were collected by the U.S. Geological Survey in 1984 (McGimsey and others, 1988).
Age: Unknown; the Yetna River volcanic field is Late Cretaceous to Tertiary (58-68 Ma) in age (Miller and Bundtzen, 1994).
Commodities (Major) - Nb, Sn; (Minor) - Be, Pb
Development Status: None
Deposit Model: May be a tin-granite-type deposit (Miller and Bundtzen, 1994; Bundtzen and Mill
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: | ID051 |
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Other Regions, Features and Areas containing this locality
North America PlateTectonic Plate
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