Placer Creek; Pleasant Creek Mine, Eagle Mining District, Southeast Fairbanks Census Area, Alaska, USAi
| Regional Level Types | |
|---|---|
| Placer Creek; Pleasant Creek Mine | Mine |
| Eagle Mining District | Mining District |
| Southeast Fairbanks Census Area | Census Area |
| Alaska | State |
| USA | Country |
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Latitude & Longitude (WGS84):
64° 58' 41'' North , 142° 0' 39'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Location: Placer Creek is a small tributary on the north side of the Seventymile River; Placer Creek is also known as Pleasant Creek. The location of placer mining on Placer Creek is uncertain; the coordinates are arbitrarily placed near the mouth of the creek, in section 27. T. 2 N., R. 28 E., of the Fairbanks Meridian. The location is accurate within 1.5 miles. Placer Creek is locality 48 of Eberlein and others (1977).
Geology: The rocks along the southwest side of Placer Creek are Paleozoic quartz-mica schist and greenschist; Upper Cretaceous to Pliocene terrigenous sedimentary rocks are exposed on the northeast side of the creek (Foster, 1976). The two units are separated by the Tintina Fault, along which Placer Creek runs. Bench gravels on Placer Creek were reported to carry gold, and there was an unsuccessful attempt at mining a bench gravel deposit in 1912 (Ellsworth and Parker, 1911; Ellsworth and Davenport, 1913). Placer Creek was mined in 1914 (Brooks, 1915). Placer gold has been produced downstream of Placer Creek on the Seventymile River (see EA025).
Workings: Bench gravels on Placer Creek were reported to carry gold, and there was an unsuccessful attempt at mining a bench gravel deposit in 1912 (Ellsworth and Parker, 1911; Ellsworth and Davenport, 1913). Placer Creek was mined in 1914 (Brooks, 1915).
Age: Quaternary.
Commodities (Major) - Au
Development Status: Undetermined.
Deposit Model: Placer Au (Cox and Singer, 1986; model 39a).
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: | EA012 |
|---|
Other Regions, Features and Areas containing this locality
North AmericaContinent
North America PlateTectonic Plate
- North America PlatformPassive Margin
- Yukon-Tanana upper DomainDomain
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