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Unnamed (in south tributary to upper Iron Creek)

Prospect, Inactive

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Commodities and mineralogy

Main commodities Cu
Ore minerals malachite

Geographic location

Quadrangle map, 1:250,000-scale TK
Quadrangle map, 1:63,360-scale B-4
Latitude 62.2845
Longitude -148.9806
Nearby scientific data Find additional scientific data near this location
Location and accuracy This prospect is at an elevation of about 3,200 feet on the east side of a tributary to upper Iron Creek. It is in the NW1/4SW1/4 sec. 6, T. 25 N., R. 3 E., Seward Meridian. The location is accurate to within a 1/4 mile. This is locality 68 of Csejtey and Miller (1978).

Geologic setting

Geologic description

Copper minerals, mainly malachite, occur in iron-stained brecciated granitic rocks of Jurassic age. Claim staking and diamond drilling in the 1970s (MacKevett and Holloway, 1977).
Geologic map unit (-148.982814305053, 62.2840040154447)
Mineral deposit model Porphyry copper? (Cox and Singer, 1986; model 17?)
Mineral deposit model number 17?
Age of mineralization Occurs in Jurassic granitic rocks.
Alteration of deposit Minor iron- and copper-stained gossan.

Production and reserves

Workings or exploration Claim staking and diamond drilling in the 1970s (MacKevett and Holloway, 1977).
Indication of production None

References

MRDS Number A012183

References

Cobb, E.H., and Csejtey, Bela, Jr., 1980, Summaries of data on and lists of references to metallic and selected nonmetallic mineral deposits in the Talkeetna Mountains quadrangle, Alaska: U.S. Geological Survey Open-File Report 80-716, 63 p.
Csejtey, Bela, Jr., and Miller, R.J., 1978, Map and table describing metalliferous and selected nonmetalliferous mineral deposits in the Talkeetna Mountains quadrangle, Alaska: U.S. Geological Survey Open-File Report 78-558-B, 22 p., 1 sheet, scale 1:250,000.
Csejtey, Bela, Jr., Nelson, W.H., Jones, D.L., Silberling, N.J., Dean, R.M., Morris, M.S., Lanphere, M.A., Smith, J.G., and Silberman, M.L, 1978, Reconnaissance geologic map and geochronology, Talkeetna Mountains quadrangle, northern part of Anchorage quadrangle, and southwest part of Healy quadrangle, Alaska: U.S. Geological Survey Open-File Report 78-558-A, 60 p., 1 sheet, scale 1:250,000.
MacKevett, E.M., Jr., and Holloway, C.D., 1977, Map showing metalliferous and selected non-metalliferous mineral deposits in the eastern part of southern Alaska: U.S. Geological Survey Open-File Report 77-169-A, 99 p., 1 sheet, scale 1:1,000,000.
Singer, D.A., Csejtey, Bela, Jr., and Miller, R.J., 1978, Map and discussion of the metalliferous and selected non-metalliferous mineral resources of the Talkeetna Mountains quadrangle, Alaska: U.S. Geological Survey Open-file Report 78-558-Q, 33 p., 1 sheet, scale 1:250,000.
Reporters J. Riehle (U.S. Geological Survey)
Last report date 10/1/2002