|Quadrangle map, 1:250,000-scale||SR|
|Quadrangle map, 1:63,360-scale||B-3|
|Nearby scientific data||Find additional scientific data near this location|
|Location and accuracy||The prospect is located on the southeast side of hill 1456 at an elevation of about 680 feet. It is about 0.1 mile southeast of SR238. It is in the NE1/4 section 18, T. 3 N., R. 10 E., of the Seward Meridian. This is location 16 of Condon and Cass (1958), location 95 of Cobb and Richter (1972), location 132 of MacKevett and Holloway (1977), location 217 of Cobb and Tysdal (1980), and location S-62 of Jansons and others (1984). This location is accurate to within a quarter of a mile.|
Geologic descriptionThe prospect consists of a shear zone that trends N 10 to 15 E. The zone contains epidote stringers and as much as 5 percent disseminated pyrite with minor amounts of covellite and chalcopyrite (Kurtak and Jeske, 1986). The host rock is greenstone of the Orca Group of early Tertiary age (Nelson and others, 1985). Grant and Higgins (1909) reported an adit (now caved) with 350 feet of workings; it appeared to follow the shear zone. Samples collected from the shear zone exposed above the caved adit contained 360 ppm copper and 195 ppm zinc (Kurtak and Jeske, 1986).
|Geologic map unit||(-147.769851389755, 60.3558372818764)|
|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||Grant and Higgins (1909) reported one adit with 350 feet of workings; it appeared to follow the shear zone. Samples collected from the shear zone exposed above the caved adit contained 360 ppm copper and 195 ppm zinc (Kurtak and Jeske, 1986).|
|Indication of production||None|
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.
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.
Johnson, B.L., 1918, Copper deposits of the Latouche and Knight Island districts, Prince William Sound: U.S. Geological Survey BuIletin 662-C, p. 193-220.
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.
Moffit, F.H., 1908, Notes on copper prospects of Prince William Sound: U.S. Geological Survey Bulletin 345-C, p. 176-178.
Moffit, F.H., and Fellows, R.E., 1950, Coper deposits of the Prince William Sound district, Alaska: U.S. Geological Survey Bulletin 963-B, p. 47-80.
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.
Richter, D.H., 1965, Geology and mineral deposits of central Knight Island, Prince William Sound, Alaska: Alaska Division of Mines and Minerals Geologic Report 16, 40 p., 1 sheet, scale 1:40,000.
|Reporters||Jeff A. Huber and Carol S. Huber (Anchorage)|
|Last report date||1/2/2002|