Highway Prospect, Kantishna Mining District, Denali Borough, Alaska, USAi
| Regional Level Types | |
|---|---|
| Highway Prospect | Prospect |
| Kantishna Mining District | Mining District |
| Denali Borough | Borough |
| Alaska | State |
| USA | Country |
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Latitude & Longitude (WGS84):
63° 23' 52'' North , 150° 19' 55'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
The site is in Denali National Park and Preserve.
Location: The location corner of the Highway claim (Cobb, 1980 [OFR 80-363]) was reported by Reed (1933, p. 284) to be on the northwest ridge of Bald Mountain at an elevation of 4600 feet. He also reported other mineralization in the same area 'near the northwest base of Bald Mountain and above the east side of the Thorofare River.' For this record, the approximately located site represents mineral deposits on the northwest side of Bald Mountain. The Highway claim is number 41 of Cobb (1972 [MF 366]).
Geology: The northwest flank of Bald Mountain is underlain by Paleozoic, calcareous sedimentary rocks cut by numerous sills of mid-Tertiary porphyritic granodiorite. The mountain is about 1/2 mile north of the main east-west Contact fault of the Mt. Eielson district. The main granodiorite intrusion forms a small, wedge-shaped mass north of the fault (Reed, 1933, plate 22). The Highway claim was prospected by two small pits that exposed a sphalerite-bearing deposit. Reed (1933, p. 284) stated that the northwest base of Bald Mountain, including the area of the Highway claim, is appreciably mineralized. The mineralization is Oligocene, roughly contemporaneous with the Eocene or Oligocene emplacement age of the granodiorite (Reed and Lanphere, 1974; Decker and Gilbert, 1978; Cole, 1998).
Workings: The area was prospected by Ben Cleary around 1931. Cleary excavated small pits that disclosed sphalerite. There apparently has been no further exploration of the deposit.
Age: The mineralization is Oligocene, roughly contemporaneous with the Eocene or Oligocene emplacement age of the granodiorite (Reed and Lanphere, 1974; Decker and Gilbert, 1978; Cole, 1998).
Commodities (Major) - Zn
Development Status: None
Deposit Model: Replacement deposit or zinc-bearing skarn (Cox and Singer, 1986; models 19a, 18
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.
Detailed Mineral List:
| ⓘ Sphalerite Formula: ZnS |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 2 - Sulphides and Sulfosalts | |||
|---|---|---|---|
| ⓘ | Sphalerite | 2.CB.05a | ZnS |
List of minerals for each chemical element
| S | Sulfur | |
|---|---|---|
| S | ⓘ Sphalerite | ZnS |
| Zn | Zinc | |
| Zn | ⓘ Sphalerite | ZnS |
Other Databases
| Link to USGS - Alaska: | MM161 |
|---|
Other Regions, Features and Areas containing this locality
North AmericaContinent
North America PlateTectonic Plate
- Farewell ForedeepForedeep Basin
- Windy-McKinley DomainDomain
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