|Quadrangle map, 1:250,000-scale||SR|
|Quadrangle map, 1:63,360-scale||D-7|
|Nearby scientific data||Find additional scientific data near this location|
|Location and accuracy||This prospect is located in the NW1/4 section 5, T. 10 N., R. 1 W., of the Seward Meridian. It is at an elevation of 150 feet on the east side of Indian Creek. This is location 1 of Cobb and Richter (1972), location 1 of MacKevett and Holloway (1977), location 1 of Cobb and Tysdal (1980), and location S-315 of Jansons and others (1984). Cobb and Tysdal (1980) summarized the relevent references under the name Strong. The location is accurate to within a quarter of a mile.|
Geologic descriptionThe deposit at this prospect consists of quartz-calcite stringers and lenses in a shattered felsic dike (Capps, 1916). The dike intrudes slate and sandstone of the Valdez Group of Late Cretaceous age (Cobb and Tysdal, 1980). The dike is undated, but similar dikes in the district are Eocene in age (Mitchell, 1979). The veins contain pyrite and gold, and the dike, adjacent to the veins, contains disseminated pyrite, iron oxide, and a little gold. A few thin, quartz-calcite veins also occur in the surrounding slate and sandstone (Jansons and others, 1984). No assay results are reported. A little gold ore was shipped about 1920 (Berg and Cobb, 1967).
|Geologic map unit||(-149.502985431154, 60.991147255501)|
|Mineral deposit model||Low-sulfide Au-quartz veins (Cox and Singer, 1986; model 36a)|
|Mineral deposit model number||36a|
|Age of mineralization||Eocene(?) or younger; the veins cut an Eocene(?) felsic dike.|
|Alteration of deposit||Iron oxide is reported.|
|Workings or exploration||The U.S. Bureau of Mines did not visit this prospect (Jansons and others, 1984). There is no sampling data and no information describing the workings available in the literature.|
|Indication of production||Yes|
|Production notes||Berg and Cobb (1967) report some minor gold production about 1920.|
Berg, H.C., and Cobb, E.H., 1967, Metalliferous lode deposits of Alaska: U.S. Geological Survey Bulletin 1246, 254 p.
Brooks, A.H., 1922, The Alaska mining industry in 1920: U.S. Geological Survey Bulletin 722-A, p. 1-74.
Brooks, A.H., 1923, The Alaska mining industry in 1921: U.S. Geological Survey Bulletin 739-A, p. 1-50.
Cobb, E.H., and Richter, D.H., 1972, Metallic mineral resources map of the Seward quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-466, 2 sheets, scale 1:250,000.
Cobb, E.H., and Tysdal, R.G., 1980, Summaries of data on and list of references to metallic and selected nonmetallic mineral deposits in the Blying Sound and Seward quadrangle, Alaska: U.S. Geological Survey Open-File Report 80-621, 276 p.
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.
Johnson, B.L., 1916, Mining on Prince William Sound: U.S. Geological Survey Bulletin 642-D, p. 137-145.
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.
Mitchell, P.A., 1979, Geology of the Hope-Sunrise (gold) mining district, north-central Kenai Peninsula, Alaska: Stanford University Master of Science thesis, 123 p.
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.
|Reporters||Jeff A. Huber (Anchorage)|
|Last report date||4/8/2000|