Knutson; Knudsen Prospect, Bristol Bay Mining District, Lake and Peninsula Borough, Alaska, USAi
| Regional Level Types | |
|---|---|
| Knutson; Knudsen Prospect | Prospect |
| Bristol Bay Mining District | Mining District |
| Lake and Peninsula Borough | Borough |
| Alaska | State |
| USA | Country |
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Latitude & Longitude (WGS84):
59° 50' 4'' North , 154° 16' 51'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Port Alsworth | 159 (2017) | 40.9km |
| Kokhanok | 170 (2015) | 52.0km |
Location: This prospect is at an elevation of about 1,300 feet on the west flank of Knutson Mountain about two miles north of Knutson Bay (Martin and Katz (1910, 1912). The site is in the NE1/4 sec. 17, T. 4 S., R. 29 W., Seward Meridian, and is probably accurate within 0.5 mile. The site is locality 3 of Detterman and Cobb (1972).
Geology: This prospect consists of two quartz veins that cut quartz monzonite of Cretaceous age (Detterman and Reed, 1980). A 3- to 8-foot-thick quartz vein contains sparse and irregularly distributed gold, along with copper- and probably silver-bearing minerals. A similar but thinner vein was reported within about 0.25 mile, in an unknown direction, from the main vein (Martin and Katz, 1910,1912; Berg and Cobb, 1967). The exact location of this deposit, and its production, grade, and nature of ore are unkown or uncertain. The prospect was sometimes described as a copper deposit (Brooks, 1913).
Workings: A 40-foot tunnel was driven in 1912 (Brooks, 1913, p. 39).
Age: Cretaceous or younger.
Commodities (Major) - Au, Cu; (Minor) - Ag
Development Status: None
Deposit Model: Polymetallic vein? (Cox and Singer, 1986; model 22c).
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 1 - Elements | |||
|---|---|---|---|
| ⓘ | Gold | 1.AA.05 | Au |
| Group 4 - Oxides and Hydroxides | |||
| ⓘ | Quartz | 4.DA.05 | SiO2 |
List of minerals for each chemical element
| O | Oxygen | |
|---|---|---|
| O | ⓘ Quartz | SiO2 |
| Si | Silicon | |
| Si | ⓘ Quartz | SiO2 |
| Au | Gold | |
| Au | ⓘ Gold | Au |
Other Databases
| Link to USGS - Alaska: | IL011 |
|---|
Other Regions, Features and Areas containing this locality
North AmericaContinent
North America PlateTectonic Plate
- Peninsular-Iliamna DomainDomain
- Peninsular TerraneVolcanic Arc
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