The Boulder Creek is a pge mine located in Alaska.
About the MRDS Data:
All mine locations were obtained from the USGS Mineral Resources Data System. The locations and other information in this database have not been verified for accuracy. It should be assumed that all mines are on private property.
Mine Info
Boulder Creek MRDS details
Site Name
Primary: Boulder Creek
Commodity
Primary: PGE
Secondary: Gold
Secondary: Gold
Tertiary: Chromium
Location
State: Alaska
District: Goodnews Bay
Land Status
Not available
Holdings
Not available
Workings
Not available
Ownership
Not available
Production
Not available
Deposit
Record Type: Site
Operation Category: Producer
Operation Type: Unknown
Years of Production:
Organization:
Significant:
Physiography
Not available
Mineral Deposit Model
Model Name: Placer PGE-Au
Orebody
Not available
Structure
Not available
Alterations
Not available
Rocks
Name: Alluvium
Role: Host
Age Type: Host Rock
Age Young: Holocene
Analytical Data
Not available
Materials
Ore: Gold
Comments
Comment (Reference): Primary Reference = Mertie, 1976
Comment (Commodity): Ore Material = platinum-group metal (PGM) alloys
Comment (Geology): Age = Quaternary.
Comment (Exploration): Status = Active?
Comment (Deposit): Model Name = Placer PGE-Au (Cox and Singer, 1986; model 39b)
Comment (Geology): Geologic Description = Boulder Creek is one of several creeks that have headwaters on the east side of the Red Mountain ultramafic pluton. It is about 1 mile long and heads against the summit of Red Mountain. Some placer mining of PGMs has taken place on Boulder Creek, probably along its lower part near Salmon River, but little information about this placer has been made public (Mertie, 1976; Cobb, 1980 [OF 80-909]). 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. The highest values in these holes were on Boulder Creek, where the average PGM content of 8 drill holes was 0.0024 ounce per cubic yard (Fechner, 1988, p. 80). Mertie (1976) reports that PGM recovered from Boulder Creek contained (recomputed free of impurities): 77.99 percent Pt, 16.28 percent Ir, 3.41 percent Os, 0.25 percent Ru, 1.31 percent Rh, 0.21 percent Pd, and 0.55 percent Au.
Comment (Workings): Workings / Exploration = Some small-scale placer workings are inferred to be present on Boulder Creek, probably along its lower part near Salmon River. 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. The highest values in these holes were on Boulder Creek, where the average PGM content of 8 drill holes was 0.0024 ounce per cubic yard (Fechner, 1988, p. 80).
References
Reference (Deposit): Mertie, J.B., Jr., 1976, Platinum deposits in the Goodnews Bay district, Alaska: U.S. Geological Survey Professional Paper 938, 42 p.
Reference (Deposit): Cobb, E.H., 1977, Placer deposit map of central Alaska: U.S. Geological Survey Open-File Report 77-168B, 64 p., 1 map, scale 1:1,000,000.
Reference (Deposit): Cobb, E.H., 1980, Summaries of data and lists of references to metallic and selected nonmetallic mineral deposits in fifteen quadrangles in southwestern and west-central Alaska: U.S. Geological Survey Open-File Report 80-909, 103 p.
Reference (Deposit): Fechner, S.A., 1988, Bureau of Mines mineral investigation of the Goodnews Bay mining district, Alaska: U.S. Bureau of Mines Open-File Report 1-88, 230 p.
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