Unnamed Occurrence (ARDF - ID106; near Flat Airstrip), Iditarod Mining District, Yukon-Koyukuk Census Area, Alaska, USAi
| Regional Level Types | |
|---|---|
| Unnamed Occurrence (ARDF - ID106; near Flat Airstrip) | - 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° 27' 12'' North , 157° 59' 20'' West
Latitude & Longitude (decimal):
Köppen climate type:
Location: This occurrence is in the Otter Creek valley under the Flat airstrip which is about 0.7 mile east of the center of Flat. It is in the SE1/4 SE1/4, section 4, T. 27 N., R. 47 W., of the Seward Meridian. The location is accurate.
Geology: This occurrence is a series of cinnabar-quartz veins. According to Ken Dahl (oral communication, 1984), the North American Dredging Company dredged thin but high grade cinnabar-quartz veins during mining here. There was a consistent north-trending orientation to the mineralized zone, but the dip of the veins is unknown (Bundtzen and others, 1992). The site is currently covered by the Flat airstrip. However, clasts of high- grade cinnabar-quartz vein material were noted in dredge tailing piles essentially where Ken Dahl estimated the location of the vein (T.K. Bundtzen, unpublished field data, 1985).
Workings: According to Ken Dahl (oral communication, 1984), the North American Dredging Company dredged thin but high grade cinnabar-quartz veins during mining here. The site is currently covered by the Flat airstrip. However, clasts of high- grade cinnabar-quartz vein material were noted in dredge tailing piles essentially where Ken Dahl estimated the location of the veins (T.K. Bundtzen, unpublished field data, 1985).
Commodities (Major) - Hg
Development Status: None
Deposit Model: Hot springs Hg? (Cox and Singer, 1986; model 27a).
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 2 - Sulphides and Sulfosalts | |||
|---|---|---|---|
| ⓘ | Cinnabar | 2.CD.15a | HgS |
| Group 4 - Oxides and Hydroxides | |||
| ⓘ | Quartz | 4.DA.05 | SiO2 |
List of minerals for each chemical element
| O | Oxygen | |
|---|---|---|
| O | ⓘ Quartz | SiO2 |
| Si | Silicon | |
| Si | ⓘ Quartz | SiO2 |
| S | Sulfur | |
| S | ⓘ Cinnabar | HgS |
| Hg | Mercury | |
| Hg | ⓘ Cinnabar | HgS |
Other Databases
| Link to USGS - Alaska: | ID106 |
|---|
Other Regions, Features and Areas containing this locality
North AmericaContinent
North America PlateTectonic Plate
- Angayucham TerraneAccretionary Complex
- Farewell buried DomainDomain
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