Unnamed Occurrence (ARDF - ID061; north of South Fork of Otter Creek), Iditarod Mining District, Yukon-Koyukuk Census Area, Alaska, USAi
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Latitude & Longitude (WGS84):
62° 31' 22'' North , 157° 37' 51'' West
Latitude & Longitude (decimal):
Köppen climate type:
Mindat Locality ID:
200847
Long-form identifier:
mindat:1:2:200847:2
GUID (UUID V4):
e5d98ace-80ac-41b1-9f61-84920a2477ba
Location: This occurrence is at an elevation of about 1,500 feet, north of the center of the South Fork of Otter Creek. The occurrence is about 0.3 mile west of hill 2039 in about the center of the north boundary of section 16, T. 28 N., R. 45 W., of the Seward Meridian. The location is accurate.
Geology: This occurrence is an altered zone in an intermediate to mafic dike that cuts calcareous sandstone of the Upper Cretaceous Kuskokwim Group (Miller and Bundtzen, 1994; Miller, Bundtzen, and Gray, 2005). The dike has been altered to silica-carbonate rock. One grab sample contained 470 parts per million (ppm) arsenic and 820 parts per billion (ppb) mercury (McGimsey and others, 1988).
Workings: Surface samples were collected by the Alaska Division of Geological and Geophysical Surveys and the U.S. Geological Survey in 1986 (McGimsey and others, 1988).
Alteration: Silica-carbonate alteration of mafic dike.
Commodities (Major) - As; (Minor) - 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 4 - Oxides and Hydroxides | |||
|---|---|---|---|
| ⓘ | Quartz | 4.DA.05 | SiO2 |
Other Databases
| Link to USGS - Alaska: | ID061 |
|---|
Other Regions, Features and Areas containing this locality
North America PlateTectonic Plate
- Farewell buried DomainDomain
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References
