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  3. Alaska Resource Data File (ARDF)

Unnamed (south of Godwin Glacier)

Occurrence, Inactive

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Commodities and mineralogy

Main commodities Cu; V
Ore minerals chalcopyrite; pyrite; pyrrhotite
Gangue minerals augite; feldspar

Geographic location

Quadrangle map, 1:250,000-scale SR
Quadrangle map, 1:63,360-scale A-6
Latitude 60.0642
Longitude -149.1664
Nearby scientific data Find additional scientific data near this location
Location and accuracy The occurrence is located in the NE1/4 section 30, T. 1 S., R. 2 E., of the Seward Meridian. It is situated on the east side of an unnamed stream that flows south from an outlier of Godwin Glacier and is at an elevation of about 1,400 feet. This is location 95 of Tysdal (1978 [MF-880-A]) and location S-192 of Jansons and others (1984). This location is accurate to within a quarter of a mile.

Geologic setting

Geologic description

The occurrence is a thin iron-stained zone containing disseminated sulfide minerals in a medium-grained gabbro. The zone contained 100 ppm copper, and 2,000 ppm vanadium (Tysdal, 1978 [MF-880-A]). Bedrock in this area belongs to the Resurrection Bay Ophiolite complex, which is included in the Valdez Group of Late Cretaceous age (Nelson and others, 1985). No other information is reported in the literature.
Geologic map unit (-149.168535293176, 60.0636417574677)
Mineral deposit model Cyprus massive sulfide (Cox and Singer, 1986; model 24a)
Mineral deposit model number 24a
Age of mineralization Cretaceous or younger; the mineralization is in rocks of the Valdez Group of Late Cretaceous age.

Production and reserves

Workings or exploration A single sample contained 100 ppm copper and 2,000 ppm vanadium (Tysdal, 1978 [MF880-A]). No workings or improvements are reported in the literature.
Indication of production None

References

References

Hoekzema, R.P., and Sherman, G.E., 1983, Mineral investigations in the Chugach National Forest, Alaska (Peninsula study area): U.S. Bureau of Mines in-house report; held at U.S. Bureau of Land Management Alaska State Office, Anchorage, 524 p.
Jansons, Uldis, Hoekzema, R.B., Kurtak, J.M., and Fechner, S.A., 1984, Mineral occurrences in the Chugach National Forest, southcentral Alaska: U.S. Bureau of Mines Mineral Land Assessment 5-84, 218 p., 2 sheets, scale 1:250,000.
Nelson, S.W., Dumoulin, J. A., and Miller, M.L., 1985, Geologic map of the Chugach National Forest, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-1645-B, 16 p., 1 sheet, scale 1:250,000.
Tysdal, R.G., 1978, Mines, prospects, and occurrences map of the Seward and Blying Sound quadrangles, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-880-A, 2 sheets, scale 1:250,000.
Reporters Jeff A. Huber and Carol S. Huber (Anchorage)
Last report date 1/2/2001