Thompson Prospect, Fairbanks Mining District, Fairbanks North Star Borough, Alaska, USAi
| Regional Level Types | |
|---|---|
| Thompson Prospect | Prospect |
| Fairbanks Mining District | Mining District |
| Fairbanks North Star Borough | Borough |
| Alaska | State |
| USA | Country |
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Latitude & Longitude (WGS84):
65° 3' 3'' North , 147° 28' 51'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Fox | 417 (2011) | 12.2km |
| Farmers Loop | 4,853 (2017) | 18.9km |
| Fairbanks | 32,325 (2017) | 26.1km |
| College | 12,964 (2011) | 26.3km |
| Badger | 19,482 (2011) | 28.0km |
Location: Cobb (1972, MF-413), loc. 28; NE1/4 sec. 35, T. 3 N., R. 1 E., of the Fairbanks Meridian. The Thompson prospect is near the head of Last Chance Creek, about 1.2 miles northeast of Pedro Dome, at an elevation of 1,775 feet. Accuracy is within 1,500 feet.
Geology: By 1912, prospect pits revealed gold-bearing quartz rubble (Smith, 1913; B 525). A 15-foot vertical shaft was sunk on a 2-foot-wide shear zone in 1913; about 40 feet below the collar of the shaft, a 100-foot drift was driven parallel to the shear zone. A 20-foot cross-cut from this adit intersected a 5-inch-thick quartz stringer but failed to intersect the 2-foot-wide shear zone found on the surface (Chapin, 1914). Both the quartz stringers and the black carbonaceous schist host rock contained gold.
Workings: By 1912, prospect pits revealed gold bearing quartz rubble (Smith, 1913; B 525). A 15-foot vertical shaft was sunk on a 2-foot-wide shear zone in 1913; about 40 feet below the collar of the shaft, a 100-foot draft was driven parallel to the shear zone. A 20-foot cross-cut from this adit was driven to intersect a 5-inch-thick quartz stringer (Chapin, 1914).
Commodities (Major) - Au
Development Status: None
Deposit Model: Auriferous quartz stringers and auriferous carbonaceous schist.
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:
| ⓘ Native Gold Formula: Au |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 1 - Elements | |||
|---|---|---|---|
| ⓘ | Native Gold | 1.AA.05 | Au |
List of minerals for each chemical element
| Au | Gold | |
|---|---|---|
| Au | ⓘ Native Gold | Au |
Other Databases
| Link to USGS - Alaska: | LG097 |
|---|
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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