Unnamed Prospect (ARDF - MM052; between Last Chance and Crevice Creeks), Kantishna Mining District, Denali Borough, Alaska, USAi
| Regional Level Types | |
|---|---|
| Unnamed Prospect (ARDF - MM052; between Last Chance and Crevice Creeks) | - not defined - |
| Kantishna Mining District | Mining District |
| Denali Borough | Borough |
| Alaska | State |
| USA | Country |
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Latitude & Longitude (WGS84):
63° 35' 21'' North , 150° 45' 32'' West
Latitude & Longitude (decimal):
Köppen climate type:
The prospect is in Denali National Park and Preserve. A possible extension of this vein on the west side of Moose Creek was uncovered during ground sluicing, but the cut had sloughed by 1921 (Davis, 1923, p. 123).
Location: This prospect is on the ridge between Last Chance and Crevice Creeks at an elevation of about 3800 feet. It is about 0.25 mile north of the center of section 25, T. 15 S., R. 16 W., Fairbanks Meridian. The location is accurate within 300 feet. The prospect corresponds to number 51 of Bundtzen, Smith, and Tosdal (1976), 228 of Hawley and Associates (1978), 64 of Bundtzen (1981), and 72 of Thornsberry, McKee,and Salisbury (1984, v. 2).
Geology: The country rocks in the area of this prospect are quartz-mica schist and quartzite of the upper Paleozoic Birch Creek Schist (Bundtzen, 1981); float at the prospect site is mainly quartz-feldspar schist. The schist generally strikes NNE and dips moderately to the NW (Thornsberry, McKee, and Salisbury, 1984, fig. K-2). The deposit is a 30-foot-thick, quartz-rich vein that trends about N50E. The quartz contains pyrite and features boxwork limonite, possibly after another sulfide. Samples of the vein assayed up to 400 ppm copper, 0.01 ounce of gold per ton, 30 ppm molybdenum, and 12 ppm uranium (Bundtzen, 1981).
Workings: One shallow pit.
Age: The deposit is assumed to be Eocene (see record MM091).
Commodities (Major) - Au, Cu; (Minor) - Mo, U
Development Status: None
Deposit Model: Low-sulfide gold(?)-quartz vein (Cox and Singer, 1986; model 36a?).
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 | |||
|---|---|---|---|
| ⓘ | Pyrite | 2.EB.05a | FeS2 |
| Group 4 - Oxides and Hydroxides | |||
| ⓘ | Quartz | 4.DA.05 | SiO2 |
| Unclassified | |||
| ⓘ | 'Limonite' | - | |
List of minerals for each chemical element
| O | Oxygen | |
|---|---|---|
| O | ⓘ Quartz | SiO2 |
| Si | Silicon | |
| Si | ⓘ Quartz | SiO2 |
| S | Sulfur | |
| S | ⓘ Pyrite | FeS2 |
| Fe | Iron | |
| Fe | ⓘ Pyrite | FeS2 |
Other Databases
| Link to USGS - Alaska: | MM052 |
|---|
Other Regions, Features and Areas containing this locality
North AmericaContinent
North America PlateTectonic Plate
- North America PlatformPassive Margin
- Yukon-Tanana lower DomainDomain
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