Unnamed Occurrence (ARDF - ID088; head of Moose Creek), Iditarod Mining District, Yukon-Koyukuk Census Area, Alaska, USAi
| Regional Level Types | |
|---|---|
| Unnamed Occurrence (ARDF - ID088; head of Moose 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° 42' 57'' North , 157° 5' 9'' West
Latitude & Longitude (decimal):
Köppen climate type:
Location: This occurrence is at an elevation of about 1,550 feet on a spur overlooking the head of Moose Creek . It is about 0.7 mile southeast of hill 2110 and about 0.5 mile east-southeast of the center of section 2, T. 30 N., R. 42 W., of the Seward Meridian. The location is accurate.
Geology: This occurrence is in an extensive zone of strong silicification and red, iron-oxide gossan in altered tuff near the base of the Beaver Mountains volcanic field which is part of the the Iditarod Volcanics (Bundtzen, Laird, and Lockwood, 1988; Miller and Bundtzen, 1988). The silica alteration is notable for its light blue chalcedony. The strong red gossan probably developed by oxidation of unknown sulfide minerals. Samples from the altered tuff contained up to 5.1 parts per million (ppm) silver, 76 ppm lead, and 5,000 parts per billion (ppb) mercury (Bundtzen, Laird, and Lockwood, 1988). Similar mineralization can be found over an area about 2 miles by 2 miles in size at the head of Moose Creek.
Workings: The area was sampled by the Alaska Division of Geological and Geophysical Surveys in 1982. (Bundtzen, Laird, and Lockwood, 1988).
Alteration: Silicification with development of much chalcedony.
Commodities (Major) - Ag; (Minor) - Hg, Pb
Development Status: None
Deposit Model: Polymetallic vein? (Cox and Singer, 1986; model 22c).
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: | ID088 |
|---|
Other Regions, Features and Areas containing this locality
North AmericaContinent
North America PlateTectonic Plate
- Angayucham TerraneAccretionary Complex
- Farewell buried DomainDomain
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