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  3. Alaska Resource Data File (ARDF)

Granite Creek

Mine, Probably inactive

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Commodities and mineralogy

Main commodities Au
Other commodities Pt
Ore minerals gold; platinum

Geographic location

Quadrangle map, 1:250,000-scale RB
Quadrangle map, 1:63,360-scale B-5
Latitude 64.34852
Longitude -155.4177
Nearby scientific data Find additional scientific data near this location
Location and accuracy Granite Creek is not labeled on the USGS Ruby B-5 quadrangle map (1952, minor revisions in 1973), but is probably one of the headwater tributaries of Flint Creek. The coordinates listed above correspond to location 19 of Cobb (1972 [MF405]) and mark the approximate center of the more northerly tributary, in section 24, T. 13 S., R. 17 E. of the Kateel River Meridian The location is accurate within 5 miles.

Geologic setting

Geologic description

Granite Creek is underlain by Paleozoic phyllite and quartzite (Puchner and others, 1998). Gold and platinum were mined from the creek during 1924 and possibly other years (Smith, 1926). Platinum is probably a rare constituent of the concentrates (Eberlein and others, 1977).
Geologic map unit (-155.420116050488, 64.3479174393918)
Mineral deposit model Placer Au (Cox and Singer, 1986; model 39a).
Mineral deposit model number 39a
Age of mineralization Quaternary?

Production and reserves

Workings or exploration Gold and platinum were mined from the creek during 1924 and possibly other years (Smith, 1926).
Indication of production Yes; small

References

MRDS Number A015541

References

Cobb, E.H., 1972, Metallic mineral resources map of the Ruby quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-405, 1 sheet, scale 1:250,000.
Cobb, E.H., and Chapman, R.M., 1981, Mineral occurrences (other than mineral fuels and construction materials) in the Kantishna River and Ruby quadrangles, Alaska: U.S. Geological Survey Open-File Report 81-170, 94 p.
Eberlein, G.D., Chapman, R.M., Foster, H.L., and Gassaway, J.S., 1977, Map and table describing known metalliferous and selected nonmetalliferous mineral deposits in central Alaska: U.S. Geological Survey Open-File Report 77-168-D, 132 p., 1 sheet, scale 1:1,000,000.
Puchner, C.C., Smith, G.M., Flanders, R.W., Crowe, D.E., and McIntyre, S.C., 1998, Bedrock geology of the Ruby-Poorman mining district, Alaska: Alaska Division of Geological and Geophysical Surveys Report of Investigations 98-11, 12 p., 3 sheets, scale 1:63,360.
Smith, P.S., 1926, Mineral industry of Alaska in 1924: U.S. Geological Survey Bulletin 783-A, p. 1-30.
Reporters C.E. Cameron (Alaska Division of Geological and Geophysical Surveys)
Last report date 3/22/2000