Unnamed Occurrence (ARDF - SM030; near VABM Kolmakof), Aniak Mining District, Bethel Census Area, Alaska, USAi
| Regional Level Types | |
|---|---|
| Unnamed Occurrence (ARDF - SM030; near VABM Kolmakof) | - not defined - |
| Aniak Mining District | Mining District |
| Bethel Census Area | Census Area |
| Alaska | State |
| USA | Country |
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Latitude & Longitude (WGS84):
61° 38' 50'' North , 158° 45' 46'' West
Latitude & Longitude (decimal):
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Chuathbaluk | 125 (2017) | 26.8km |
Location: This occurrence covers about 12 square miles; it is centered near VABM Kolmakof, east of the Kolmakof River. The center is at an elevation of about 800 feet in the SE1/4 sec. 18, T. 18 N., R. 52 W., of the Seward Meridian.
Geology: This occurrence covers about 12 square miles and is defined by strong anomalies in stream sediment and panned concentrate samples (Gray and others, 1994; Theodorakos and others, 1992). The rocks in the area consists of shale and sandstone of the Upper Cretaceous, Kuskokwim Group; a roof pendant of altered mafic volcanic rocks that crops out high on a ridge near VABM Kolmakof; and several circular areas of hornfels, each about 0.4 square miles in size. The hornfels probably overlies a pluton (Bundtzen and others, 1998). Stream sediments samples collected in the area contain 5.6 and 0.75 ppm mercury; the panned concentrates from the same sites contain as much as 50.0 percent cinnabar (Gray and others, 1994).
Workings: Stream sediment and panned concentrates were sampled by government geochemists.
Commodities (Major) - Hg
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.
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 2 - Sulphides and Sulfosalts | |||
|---|---|---|---|
| ⓘ | Cinnabar | 2.CD.15a | HgS |
Other Databases
| Link to USGS - Alaska: | SM030 |
|---|
Other Regions, Features and Areas containing this locality
North AmericaContinent
North America PlateTectonic Plate
- Angayucham TerraneAccretionary Complex
- Farewell buried DomainDomain
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