Last Chance Creek Prospect, Goodnews Bay, Bethel Census Area, Alaska, USAi
Regional Level Types | |
---|---|
Last Chance Creek Prospect | Prospect |
Goodnews Bay | Bay |
Bethel Census Area | Census Area |
Alaska | State |
USA | Country |
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Latitude & Longitude (WGS84):
58° 56' 23'' North , 161° 42' 36'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
Place | Population | Distance |
---|---|---|
Goodnews Bay | 256 (2017) | 21.1km |
Mindat Locality ID:
198461
Long-form identifier:
mindat:1:2:198461:6
GUID (UUID V4):
4a9fabb9-7c64-4bdb-b325-44eae2b64af0
Location: Last Chance Creek is a 0.6-mile-long west tributary to Salmon River. It is between Boulder (HG026) and Squirrel Creek (HG013). It is included in locality 8 of Cobb (1972 [MF 362]; 1980 [OF 80-909]).
Geology: Platinum-bearing alluvium is reported to be present in this creek, but apparently not in mineable grades or volumes (Mertie, 1976). A Defense Minerals Exploration Administration contract funded drilling of 50 exploration holes in alluvium along the east side of Red Mountain between Last Chance and Dowry Creeks in 1953. The depths of these drill holes ranged from 5 to 51 feet and the PGM content ranged from 0 to 0.0085 ounce of PGM per cubic yard (Fechner, 1988). Last Chance Creek flows across Paleozoic or Mesozoic sedimentary and igneous rocks that are intruded by the Jurassic Red Mountain ultramafic pluton (Hoare and Coonrad, 1978). The border zone of this pluton is within a few hundred feet of the upstream limit of the creek.
Workings: A Defense Minerals Exploration Administration contract funded drilling of 50 exploration holes in alluvium along the east side of Red Mountain between Last Chance and Dowry Creeks in 1953. The depths of these drill holes ranged from 5 to 51 feet and the PGM content ranged from 0 to 0.0085 ounce of PGM per cubic yard (Fechner, 1988, p. 80).
Age: Quaternary.
Commodities (Major) - PGM
Development Status: None
Deposit Model: Placer PGE-Au (Cox and Singer, 1986; model 39b)
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: | HG029 |
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Other Regions, Features and Areas containing this locality
North America PlateTectonic Plate
- Walrus-Goodnews DomainDomain
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