Boundary Creek Mine, Eagle Mining District, Southeast Fairbanks Census Area, Alaska, USAi
| Regional Level Types | |
|---|---|
| Boundary 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° 40' 48'' North , 141° 9' 46'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Location: Boundary Creek is a small east tributary of the Yukon River about 8 miles south of Eagle; the mouth of Boundary Creek is less than one-quarter of a mile west of the Canadian border. The location of placer gold mining on Boundary Creek is not reported; the coordinates are placed at the approximate midpoint of the creek,in section 5, T. 3 S., R. 33 E., of the Fairbanks Meridian. Boundary Creek is locality 6 of Eberlein and others (1977) and locality 17 of Burleigh and Lear (1994).
Geology: The rocks in the vicinity of Boundary Creek are undifferentiated Paleozoic greenschist-facies and lesser amphibolite-facies rocks, including schist, greenstone, and local marble, and minor Paleozoic or Mesozoic serpentinite (Foster, 1976). The pay streak on Boundary Creek is reported to be 10 miles long, but recovery in the early 1900's was hampered by large boulders and gravel that had to be removed to reach bedrock (Powers, 1935). The gold is coarse and sold for $18 per ounce (Powers, 1935). The placer gold contained 850 parts of gold and 145 parts of silver per thousand (Mertie, 1942). Smith (1941 [B 910-C]) reported a gold assay from Boundary Creek of 850 parts of gold per thousand. Placer gold on Boundary Creek was discovered around 1891 (Powers, 1935). Brooks (1903) reports mining on Boundary Creek in 1902.
Workings: Placer gold on Boundary Creek was discovered around 1891 (Powers, 1935). Brooks (1903) reported mining on Boundary Creek in 1902.
Age: Quaternary.
Production: The placer gold had 850 parts of gold per thousand and 145 parts of silver per thousand (Mertie, 1942). Smith (1941 [B 910-C]) reported a gold assay from Boundary Creek of 850 parts of gold per thousand.
Commodities (Major) - Au
Development Status: Yes; small
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: | EA053 |
|---|
Other Regions, Features and Areas containing this locality
North AmericaContinent
North America PlateTectonic Plate
- Yukon-TananaVolcanic Arc
- Yukon-Tanana upper DomainDomain
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