Carlson; Averil Prospects, Kantishna Mining District, Denali Borough, Alaska, USAi
| Regional Level Types | |
|---|---|
| Carlson; Averil Prospects | Group of Prospects |
| Kantishna Mining District | Mining District |
| Denali Borough | Borough |
| Alaska | State |
| USA | Country |
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Latitude & Longitude (WGS84):
63° 18' 32'' North , 150° 32' 2'' West
Latitude & Longitude (decimal):
Type:
Group of Prospects
Köppen climate type:
The area is within Denali National Park and Preserve.
Location: The Carlson and Averil prospects (Cobb, 1980, p. 16 [OFR 80-363]) are in the headwaters of Pirate Creek, about 0.8 mile west of Muldrow Glacier. Their location is uncertain; for this record the site corresponds to the location given by Heiner and Porter (1972, Mt. McKinley quadrangle, serial number 69). It is south of location 36 of Cobb (1972 [MF 366]) and location 45 of MacKevett and Holloway (1977). The location probably is accurate within a mile.
Geology: The Carlson and Averil prospects are in the northern contact zone of the Eocene or Oligocene McGonagall and related granitic plutons (Reed, 1933; Reed, 1961; Reed and Lanphere, 1973,1974). Capps (1927) noted widespread introduction of iron sulfides, presumably pyrite or pyrrhotite, in the contact zone. Based on the distribution of numerous claims, the lodes are probably mainly of disseminated type. Capps did not describe the mineral species present, but both Capps (1927) and Heiner and Porter (1972) report that the claims were valuable mainly for silver, copper, and lead. Such metals commonly occur in chalcopyrite and galena, and their oxidized equivalents. The deposits probably are mid-Tertiary, roughly contemporaneous with the Eocene or Oligocene emplacement age of the McGonagall pluton (Reed and Lanphere, 1973, 1974). The area of these prospects is geologically similar to that at the Mt. Eielson and Slippery Creek deposits.
Workings: The area was prospected subsequent to the discoveries at Mt. Eielson in the early 1920s. H. Carlson reportedly staked numerous claims in the area west of Muldrow Glacier in 1925 (Heiner and Porter, 1972). There has been little, if any, exploration of the deposits described in this record.
Age: The deposits probably are mid-Tertiary, roughly contemporaneous with the Eocene or Oligocene emplacement age of the McGonagall pluton (Reed and Lanphere, 1973, 1974).
Commodities (Major) - Ag, Cu, Pb
Development Status: No
Deposit Model: Disseminated(?) deposit.
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.
Detailed Mineral List:
| ⓘ Chalcopyrite ? Formula: CuFeS2 |
| ⓘ Galena Formula: PbS |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 2 - Sulphides and Sulfosalts | |||
|---|---|---|---|
| ⓘ | Chalcopyrite ? | 2.CB.10a | CuFeS2 |
| ⓘ | Galena | 2.CD.10 | PbS |
List of minerals for each chemical element
| S | Sulfur | |
|---|---|---|
| S | ⓘ Chalcopyrite | CuFeS2 |
| S | ⓘ Galena | PbS |
| Fe | Iron | |
| Fe | ⓘ Chalcopyrite | CuFeS2 |
| Cu | Copper | |
| Cu | ⓘ Chalcopyrite | CuFeS2 |
| Pb | Lead | |
| Pb | ⓘ Galena | PbS |
Other Databases
| Link to USGS - Alaska: | MM167 |
|---|
Other Regions, Features and Areas containing this locality
North AmericaContinent
North America PlateTectonic Plate
- Farewell ForedeepForedeep Basin
- Minchumina BasinBasin
- Windy-McKinley DomainDomain
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