|Quadrangle map, 1:250,000-scale||SR|
|Quadrangle map, 1:63,360-scale||B-2|
|Nearby scientific data||Find additional scientific data near this location|
|Location and accuracy||The prospect is located in the SW1/4 section 14, T. 4 N., R. 10 E., of the Seward Meridian. This is about 1.2 miles northwest of Otter Lake. A 5-foot adit was driven into a cliff face at 1,300 feet elevation. This is location 122 of MacKevett and Holloway (1977), location 200 of Cobb and Tysdal (1980), and location S-80 of Jansons and others (1984). This location is accurate to within a quarter of a mile.|
Geologic descriptionThe country rock in the area consists of greenstone and pillow basalt of the Orca Group of early Tertiary age (Cobb and Tysdal, 1980). The greenstone strikes N10-25W and dips nearly vertical. A 5-foot adit cuts an iron-stained zone that contains less than 1 percent pyrite (Kurtak and Jeske, 1986). A single random chip sample of the iron-stained zone contained 145 ppm copper and 65 ppm zinc (Kurtak and Jeske, 1986).
|Geologic map unit||(-147.67909730403, 60.4335958653545)|
|Mineral deposit model||Cyprus massive sulfide (Cox and Singer, 1986; model 24a)|
|Mineral deposit model number||24a|
|Age of mineralization||Tertiary or younger; the mineralization is in rocks of the Orca Group of Tertiary age.|
|Workings or exploration||Workings consist of a single 5-foot adit driven into a cliff to investigate an iron-stained zone (Kurtak and Jeske, 1986). A single random chip sample of the iron-stained zone contained 145 ppm copper and 65 ppm zinc (Kurtak and Jeske, 1986).|
|Indication of production||None|
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.
Condon, W.H., and Cass, J.T., 1958, Map of a part of the Prince William Sound area, Alaska, showing linear geologic features as shown on aerial photographs: U.S. Geological Survey Miscellaneous Investigations Series Map I-273, 1 sheet, scale 1:125,000.
Grant, U.S., and Higgins, D.F., Jr., 1909, Notes on geology and mineral prospects in the vicinity of Seward, Kenai Peninsula: U.S. Geological Survey Bulletin 379-C, p. 98-107.
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.
Kurtak, J.M., and Jeske, R.E., 1986, Mineral investigations in the Chugach National Forest, Alaska (Islands area): U.S. Bureau of Mines Open-File Report 54-86, 302 p., 1 sheet, scale 1:63,360.
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.
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 and Carol S. Huber (Anchorage)|
|Last report date||12/15/2000|