|Quadrangle map, 1:250,000-scale||SR|
|Quadrangle map, 1:63,360-scale||D-4|
|Nearby scientific data||Find additional scientific data near this location|
|Location and accuracy||The prospect is located on the north side of the Pigot Glacier valley at an elevation of 700 feet elevation. It is in the NW1/4 section 16, T. 9 N., R. 6 E., of the Seward Meridian. This is location 129 of Condon and Cass (1958), location 60 of Cobb and Richter (1972), location 86 of MacKevett and Holloway (1977), location 136 of Cobb and Tysdal (1980), and location S-164 of Jansons and others (1984). This location is accurate to within a quarter of a mile.|
Geologic descriptionThe country rock at this prospect is an argillite of the Valdez Group of Late Cretaceous age that is cut by felsic dikes of probable Eocene age (Nelson and others, 1985). The prospect consists of a 5-foot adit along a single quartz vein in a small well-defined fault that strikes S63W dip 60N. The vein is traceable for about 250 feet along strike and is from 1 to 24 inches wide with an average width of 6 inches (Johnson, 1914 [B 592-G, p. 233]). The vein consists of quartz and calcite, along with chalcopyrite, arsenopyrite, galena, sphalerite, and gold. The vein is banded parallel to its walls, and some gouge is present.
|Geologic map unit||(-148.407294809072, 60.8738118060142)|
|Mineral deposit model||Low-sulfide Au-quartz vein (Cox and Singer, 1986; model 36a)|
|Mineral deposit model number||36a|
|Age of mineralization||Eocene or younger; the fault and the vein cut Eocene dikes.|
|Workings or exploration||
The prospect was discovered in 1913. Development that summer included surface stripping and a 5-foot adit (Johnson, 1914 [B 592-g, p. 233]). No assay results are reported.The U.S. Bureau of Mines searched for the prospect in 1981 but did not locate it (Hoekzema and Sherman, 1983).
|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.
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., 1914, The Port Wells gold-lode district, Alaska: U.S. Geological Survey Bulletin 592-G, p. 195-236.
Johnson, B.L., 1918, Mining on Prince William Sound: U.S. Geological Survey Bulletin 662-C, p. 183-192.
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 (Anchorage)|
|Last report date||8/20/2000|