The Robert Creek is a gold 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
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Robert Creek MRDS details
Site Name
Primary: Robert Creek
Secondary: Sheep Creek
Commodity
Primary: Gold
Location
State: Alaska
District: Koyukuk
Land Status
Not available
Holdings
Not available
Workings
Not available
Ownership
Not available
Production
Not available
Deposit
Record Type: Site
Operation Category: Occurrence
Operation Type: Unknown
Years of Production:
Organization:
Significant:
Physiography
Not available
Mineral Deposit Model
Model Name: Placer Au-PGE
Orebody
Not available
Structure
Not available
Alterations
Not available
Rocks
Not available
Analytical Data
Not available
Materials
Ore: Gold
Comments
Comment (Reference): Primary Reference = Maddren, 1913
Comment (Deposit): Other Comments = Maddren (1913) did not actually visit this area, and his reports are based on Schrader (1900) and information from local prospectors. The published descriptions of the Robert Creek and Sheep Creek placer deposits are combined in this record. The only other gold occurrence known in tributaries to Robert Creek is Willow Creek (CH109). Reed (1938) points out that Maddren (1913) incorrectly identified Sheep Creek as Spruce Creek and Willow Creek as Sheep Creek.
Comment (Geology): Geologic Description = Maddren (1913) reported that gold prospects had been found on Sheep Creek and 'especially those tributary to Robert Creek', along with a number of other creeks around the headwaters of the Bettles River. Maddren also noted that the gold was found on the lower parts of the tributaries to Roberts Creek, where miners had cut down to the schist underlying the limestones and that only prospect work had been done. No other descriptive information as to any further work, if any, is available. Recent mapping shows that lower Roberts Creek occupies a valley between significant granitic bodies that make up the Devonian Horace Mountain plutons to the north and the Baby Creek batholith to the south (Dillon and others, 1996). These plutons intrude Ordovician to Cambrian(?) schists and marbles.
Comment (Deposit): Model Name = Placer Au (Cox and Singer, 1986; model 39a)
Comment (Exploration): Status = Inactive
Comment (Geology): Age = Quaternary.
References
Reference (Deposit): Maddren, A.G., 1910, The Koyukuk-Chandalar gold region: U.S. Geological Survey Bulletin 442-G, p. 284-315.
Reference (Deposit): Maddren, A.G., 1913, The Koyukuk-Chandalar region, Alaska: U.S. Geological Survey Bulletin 532, 119 p.
Reference (Deposit): Dillon, J.T., Reifenstuhl, R.R., and, Harris, G.W., 1996, Geologic map of the Chandalar C-5 quadrangle, southeastern Brooks Range, Alaska: Alaska Division of Geological and Geophysical Surveys Professional Report 104, 1 sheet, scale 1:63,360.
Reference (Deposit): Cobb, E.H., and Cruz, E.L., 1983, Summaries of data and lists of references to metallic and selected nonmetallic mineral deposits in the Chandalar quadrangle, Alaska: U.S. Geological Survey Open-File Report 83-278, 91 p.
Reference (Deposit): Cobb, E.H., 1976, Summary of references to mineral occurrences (other than mineral fuels and construction materials) in the Chandalar and Wiseman quadrangles, Alaska: U.S. Geological Survey Open-File Report 76-340, 205 p.
Reference (Deposit): DeYoung, J.H., Jr., 1978, Mineral resources map of the Chandalar quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-878-B, 2 sheets, scale 1:250,000.
Reference (Deposit): Heiner, L.E., and Wolff, E.N., eds., 1968, Mineral resources of northern Alaska, Final report, submitted to the NORTH Commission: Mineral Industry Research Laboratory, University of Alaska, Report 16, 306 p.
Reference (Deposit): Mulligan, J.J., 1974, Mineral resources of the Trans-Alaska Pipeline corridor: U.S. Bureau of Mines Information Circular 8626, 24 p.
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