Offield Creek Mine, Port Clarence Mining District, Nome Census Area, Alaska, USAi
Regional Level Types | |
---|---|
Offield Creek Mine | Mine |
Port Clarence Mining District | Mining District |
Nome Census Area | Census Area |
Alaska | State |
USA | Country |
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Latitude & Longitude (WGS84):
65° 18' 7'' North , 166° 0' 21'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
Place | Population | Distance |
---|---|---|
Teller | 236 (2017) | 17.1km |
Brevig Mission | 400 (2017) | 22.7km |
Mindat Locality ID:
199225
Long-form identifier:
mindat:1:2:199225:3
GUID (UUID V4):
0db29bdb-ba96-49ae-be65-415e6815ec24
Location: Offield Creek is a south-flowing stream whose mouth is on the northeast shore of Grantley Harbor, 9.25 miles east of Teller. The creek is in the southeast corner of the Teller B-3 quadrangle and adjacent parts of the Teller B-2 quadrangle. Placer operations were apparently on upstream parts of the drainage at surface elevations of about 400 feet (Cobb and Sainsbury, 1972). This is locality 70 of Cobb and Sainsbury (1972). Cobb (1975) summarized relevant references under the name 'Offield Cr.'.
Geology: Bedrock in the Offield Creek drainage is a schistose chlorite and mica schist assemblage that is locally intruded by small greenstone bodies (Sainsbury, 1972); the age of this assemblage is uncertain but it is probably Paleozoic. Although Cobb (1975) states that this creek has been extensively placer mined, primarily in the 1930s, Sainsbury and others (1969) did not show the location of placer workings. The character of the placer deposit has not been described.
Workings: Cobb (1975) states that this creek has been extensively placer mined.
Age: Quaternary
Production: Not known, primarily in the 1930's
Reserves: Not defined
Commodities (Major) - Au
Development Status: Yes
Deposit Model: Alluvial Au placer (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.
Gallery:
Other Databases
Link to USGS - Alaska: | TE082 |
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Other Regions, Features and Areas containing this locality
North America PlateTectonic Plate
- Brooks-Seward DomainDomain
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