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Unnamed Occurrence (ARDF - ID053; west of upper Moose Creek), Iditarod Mining District, Yukon-Koyukuk Census Area, Alaska, USAi
| Regional Level Types | |
|---|---|
| Unnamed Occurrence (ARDF - ID053; west of upper 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° 36' 33'' North , 157° 51' 50'' West
Latitude & Longitude (decimal):
Köppen climate type:
Locality equivalent to #71 of Miller, Bundtzen, and Gray (2005), Table 1.
Location: This occurrence is on a northeast-trending knob overlooking Moose Creek, about 500 feet southwest of hill 1115. It is at an elevation of about 1,000 feet, near the northwest corner of section 14, T. 29 N., R. 46 W., of the Seward Meridian. The location is accurate.
Geology: This occurrence consists of a zone of sericitized, iron-oxide-stained porphyritic dike rock that cuts a sandstone of the Upper Cretaceous, Kuskokwim Group (Miller and Bundtzen, 1994; Miller, Bundtzen, and Gray, 2005). The dike is probably related to the Late Cretaceous or early Tertiary intrusions of the Kuskokwim mineral belt (Bundtzen and Miller, 1997). One sample collected in the altered zone contained 740 parts per million (ppm) antimony, 80 ppm arsenic, 680 parts per billion mercury, and a trace of gold (McGimsey and others, 1988).
Workings: The occurrence was sampled by the U.S. Geological Survey in 1985 (McGimsey and others, 1988).
Age: Undated; the dike is probably part of the Upper Cretaceous or early Tertiary intrusions of the Kuskokwim mineral belt (Bundtzen and Miller, 1997).
Alteration: Sericite alteration in granite-porphyry dike.
Commodities (Major) - Sb; (Minor) - As, Hg
Development Status: None
Deposit Model: Possibly a silica-carbonate mercury deposit or a simple antimony deposit (Cox a
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
2 valid minerals.
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 4 - Oxides and Hydroxides | |||
|---|---|---|---|
| ⓘ | Hematite | 4.CB.05 | Fe2O3 |
| ⓘ | Quartz | 4.DA.05 | SiO2 |
List of minerals for each chemical element
| O | Oxygen | |
|---|---|---|
| O | ⓘ Hematite | Fe2O3 |
| O | ⓘ Quartz | SiO2 |
| Si | Silicon | |
| Si | ⓘ Quartz | SiO2 |
| Fe | Iron | |
| Fe | ⓘ Hematite | Fe2O3 |
Other Databases
| Link to USGS - Alaska: | ID053 |
|---|
Other Regions, Features and Areas containing this locality
North AmericaContinent
North America PlateTectonic Plate
- Angayucham TerraneAccretionary Complex
- Farewell buried DomainDomain
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