Unnamed Occurrence (ARDF - ID049; on hill 1012), Iditarod Mining District, Yukon-Koyukuk Census Area, Alaska, USAi
| Regional Level Types | |
|---|---|
| Unnamed Occurrence (ARDF - ID049; on hill 1012) | - 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° 37' 51'' North , 158° 25' 58'' West
Latitude & Longitude (decimal):
Köppen climate type:
Mindat Locality ID:
200835
Long-form identifier:
mindat:1:2:200835:9
GUID (UUID V4):
d4bd7d9a-27da-4751-a621-eb985f24f018
Locality equivalent to #69 of Miller, Bundtzen, and Gray (2005), Table 1.
Location: This occurrence is on hill 1012 at the head of an unnamed tributary of the Yetna River. The occurrence is in the SE1/4, section 3, T. 29 N., R. 49 W., of the Seward Meridian. The location is accurate.
Geology: This occurrence consists of iron-oxide-stained, altered rhyolite tuff in the Upper Cretaceous to early Tertiary, Yetna River volcanic field (Miller and Bundtzen, 1994; Miller, Bundtzen, and Gray, 2005). One grab sample contained 5.0 parts per million (ppm) silver and 200 ppm lead (McGimsey and others, 1988).
Workings: Surface samples were collected by the U.S. Geological Survey in 1985 (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).
Alteration: Chalcedonic alteration.
Commodities (Major) - Ag; (Minor) - Pb
Development Status: None
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.
Detailed Mineral List:
| ⓘ 'Limonite' |
| ⓘ Quartz Formula: SiO2 |
| ⓘ Quartz var. Chalcedony Formula: SiO2 |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 4 - Oxides and Hydroxides | |||
|---|---|---|---|
| ⓘ | Quartz var. Chalcedony | 4.DA.05 | SiO2 |
| ⓘ | 4.DA.05 | SiO2 | |
| Unclassified | |||
| ⓘ | 'Limonite' | - | |
List of minerals for each chemical element
| O | Oxygen | |
|---|---|---|
| O | ⓘ Quartz var. Chalcedony | SiO2 |
| O | ⓘ Quartz | SiO2 |
| Si | Silicon | |
| Si | ⓘ Quartz var. Chalcedony | SiO2 |
| Si | ⓘ Quartz | SiO2 |
Other Databases
| Link to USGS - Alaska: | ID049 |
|---|
Other Regions, Features and Areas containing this locality
North America PlateTectonic Plate
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References
