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  3. Alaska Resource Data File (ARDF)

McCally Creek

Prospect, Inactive

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Commodities and mineralogy

Main commodities Hg
Ore minerals cinnabar

Geographic location

Quadrangle map, 1:250,000-scale SM
Quadrangle map, 1:63,360-scale C-4
Latitude 61.74162
Longitude -157.34809
Nearby scientific data Find additional scientific data near this location
Location and accuracy This prospect is on McCally Creek, about 1.6 miles north-northeast of VABM 2484 on Barometer Mountain. The prospect is at an elevation of about 500 feet in the NE1/4 sec. 13, T. 19 N., R. 45 W., of the Seward Meridian. The prospect is locality 23 of Miller and others (1989). The location is approximate.

Geologic setting

Geologic description

The McCally Creek prospect consists of disseminated cinnabar in sandstone and shale of the Upper Cretaceous, Kuskokwim Group, near the contact with the granite porphyry intrusive complex that makes up most of Barometer Mountain (Cady and others, 1955; Miller and others, 1989). No size, orientation, or assay information is available. The mineralization at the McCally Creek prospect is probably similar to mineralization at the Fairview prospect (SM019).
Geologic map unit (-157.350464995914, 61.7409292646159)
Mineral deposit model Silica-carbonate mercury (Cox and Singer, 1986; model 27c).
Mineral deposit model number 27c
Age of mineralization Undated; the nearby Fairview prospect (ARDF SM019) has a 40Ar/39Ar age of 72.6 Ma (Gray, Gent, and others, 1997).

Production and reserves

Workings or exploration Only surface exploration has taken place on the property (Cady and others, 1955).
Indication of production None

References

MRDS Number A013444

References

Cady, W.M., Wallace, R.E., Hoare, J.M., and Webber, E.J., 1955, The central Kuskokwim region, Alaska: U.S. Geological Survey Professional Paper 268, 132 p.
Cobb, E.H., 1972, Metallic mineral resources map of the Sleetmute quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-368, 1 sheet, scale 1:250,000.
Cobb, E.H., 1976, Summary of references to mineral occurrences (other than mineral fuels and construction materials) in the Dillingham, Sleetmute, and Taylor Mountains quadrangles, Alaska: U.S. Geological Survey Open-File Report 76-606, 92 p.
Gray, J.E., Gent, C.A., Snee, L.W., and Wilson, F.H., 1997, Epithermal mercury-antimony and gold-bearing vein lodes of southwest Alaska, in Goldfarb, R.J., and Miller, L.D., eds., Mineral Deposits of Alaska: Economic Geology Monograph 9, p. 287-305.
Miller, M.L., Belkin, H.E., Blodgett, R.B., Bundtzen, T.K., Cady, J.W., Goldfarb, R.J., Gray, J.E., McGimsey, R.G., and Simpson, S.L., 1989, Pre-field study and mineral resource assessment of the Sleetmute quadrangle, southwestern Alaska: U.S. Geological Survey Open-File Report 89-363, 115 p., 3 plates, scale 1:250,000.
Sainsbury, C.L., and MacKevett, E.M., Jr., 1965, Quicksilver deposits of southwestern Alaska a description of the quicksilver mines and prospects, with special emphasis on the structural controls of ore deposition: U.S. Geological Survey Bulletin 1187, 89 p.
Reporters T.K. Bundtzen (Pacific Rim Geological Consulting, Inc.) and M.L. Miller (U.S. Geological Survey)
Last report date 4/30/2003