Unnamed Occurrence (ARDF - SP002; near Kutuk River), Koyukuk Mining District, Yukon-Koyukuk Census Area, Alaska, USAi
| Regional Level Types | |
|---|---|
| Unnamed Occurrence (ARDF - SP002; near Kutuk River) | - not defined - |
| Koyukuk Mining District | Mining District |
| Yukon-Koyukuk Census Area | Census Area |
| Alaska | State |
| USA | Country |
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Latitude & Longitude (WGS84):
67° 45' 28'' North , 153° 48' 39'' West
Latitude & Longitude (decimal):
Köppen climate type:
The area is within the Gates of the Arctic National Park and Wilderness and has been closed to prospecting since 1981.
Location: This site is at an elevation of about 2700 feet on the west side of the Kutuk River near its head. It is in the N1/2 of sec. 12, T. 27 N., R. 22 E., of the Kateel River Meridian. It corresponds to locality 5 of Grybeck and Nelson, 1981. Location accurate to within 600 ft.
Geology: This occurrence consists of a grab sample of copper-stained, orange-weathering dark-gray stretched-pebble conglomerate collected from an otherwise monotonous and regionally extensive sequence of Devonian phyllite (Nelson and Grybeck, 1980; Grybeck and Nelson, 1981). The sample contained 5 ppm Ag and 1500 ppm Cu. No sulfides were noted in the sample, and the occurrence appeared to be only of local extent.
Workings: Grab sample collected during regional geologic mapping by the USGS in the late 1970s.
Age: Devonian or younger based on age of host rock.
Commodities (Major) - Ag, Cu
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 5 - Nitrates and Carbonates | |||
|---|---|---|---|
| ⓘ | Malachite | 5.BA.10 | Cu2(CO3)(OH)2 |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Malachite | Cu2(CO3)(OH)2 |
| C | Carbon | |
| C | ⓘ Malachite | Cu2(CO3)(OH)2 |
| O | Oxygen | |
| O | ⓘ Malachite | Cu2(CO3)(OH)2 |
| Cu | Copper | |
| Cu | ⓘ Malachite | Cu2(CO3)(OH)2 |
Other Databases
| Link to USGS - Alaska: | SP002 |
|---|
Other Regions, Features and Areas containing this locality
North AmericaContinent
- Brooks RangeMountain Range
- Rocky MountainsMountain Range
North America PlateTectonic Plate
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