|Quadrangle map, 1:250,000-scale||SR|
|Quadrangle map, 1:63,360-scale||A-3|
|Nearby scientific data||Find additional scientific data near this location|
|Location and accuracy||The prospect is located near tidewater on the southeast shore of Elrington Island. It is in the SE1/4 section 11, T. 2 S., R. 8 E., of the Seward Meridian. This is location 262 of Tysdal (1978 [MF-880-A]) and location S-21 of Jansons and others (1984). This location is accurate to within a quarter of a mile.|
Grant and Higgins (1909) described the prospect as a 370-foot-long adit that followed quart-calcite veins in greenstone and slate. The veins contained pyrite, pyrrhotite, chalcopyrite, quartz, and asbestos (Tysdal, 1978 [MF-880-A]; Grant and Higgins, 1909). Some of the veins were 3 inches thick, and asbestos was perpendicular to the wall of the veins. Bedrock in this area is Orca Group of early Tertiary age (Nelson and others, 1985).In 1980 and 1981, the U.S. Bureau of Mines examined this area but did not find the adit reported by Grant and Higgins (1909) and Tysdal (1978 [MF-880-A]). They sampled barren quartz-calcite veins that contained no asbestos (Kurtak and Jeske, 1986).
|Geologic map unit||(-148.017230282192, 60.0110475156935)|
|Mineral deposit model||Besshi massive sulfide (Cox and Singer, 1986; model 24b)|
|Mineral deposit model number||24b|
|Age of mineralization||Tertiary or younger; the mineralization is in rocks of the Orca Group of Tertiary age.|
|Workings or exploration||The workings on this prospect consist of a 370-foot adit (Grant and Higgins, 1909). In 1980 and 1981, the U.S. Bureau of Mines examined this area but did not find the adit that was reported in the literature. They sampled barren quartz-calcite veins that contained no asbestos (Kurtak and Jeske, 1986).|
|Indication of production||None|
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.
Grant, U.S., and Higgins, D.F., Jr., 1910, Reconnaissance of the geology and mineral resources of Prince William Sound, Alaska: U.S. Geological Survey Bulletin 443, 89 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.
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||10/30/2001|