|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 in the N1/2 section 11, T. 2 N., R. 9 E., of the Seward Meridian. It is 1.2 miles northeast of Reynolds Peak, Latouche Island. This is location 264 of Tysdal (1978 [MF-880-A]) and location S-9 of Jansons and others (1984). This location is accurate to within a quarter of a mile.|
Geologic descriptionThe prospect consists of a few stringers of chalcopyrite, pyrrhotite, and pyrite (Tysdal, 1978 [MF-880-A]). The host rock is sandstone of the Orca Group of early Tertiary age (Nelson and others, 1985). Workings consist of a single adit of unknown length (Kurtak and Jeske, 1986).
|Geologic map unit||(-147.857797795109, 60.0197492728158)|
|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||Workings consist of a single adit of unknown length. The U.S. Bureau of Mines attempted to locate this prospect in the early 1980s but did not find it (Kurtak and Jeske, 1986).|
|Indication of production||None|
Additional commentsThis prospect has also been called Latouche Island Copper Mining Co. and Alameda. Occurrence SR311 and prospect SR314 have also been called by the same names. Occurrence SR315 has been called Alameda. All three are different sites.
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.
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.
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|