Calaveras Occurrence, Kodiak District, Kodiak Island Borough, Alaska, USA
No additional information is available since Becker's 1898 description.
Location: This site is located on the west side of Uyak Bay approximately 2 miles northwest of triangulation station Bush and 2 1/2 miles southeast of Larsen Bay ( Martin 1913, locality 11; Berg and Cobb, 1967, figure 15, locality 10; Cobb, 1972, MF 460, locality 1; McGee, 1972, locality 10; MacKevett and Holloway, 1977, locality 1). Site location is accurate to within 1/2 mile.
Geology: This occurrence consists of a 20-inch-thick quartz vein which strikes northwest and dips southwest, approximately parallel to the Bear (KD003) and Dan (KD004) veins. It crops out northeast of the Dan and cuts Cretaceous metasedimentary rock. The vein carries arsenopyrite, pyrite, galena, and gold. Acidic dikes occur in the vicinity.
Age: Cretaceous or younger
Commodities (Major) - Au?, Pb
Development Status: None
Deposit Model: Chugach-type low-sulfide gold-quartz vein (Bliss, 1992; model 36a.1), turbidite
ReferencesBecker, G.F., 1898, Reconnaissance of some gold fields of southern Alaska, with some notes on general geology: U.S. Geological Survey 18th annual report, Part 3, p. 7-86. Berg, H.C., and Cobb, E.H., 1967, Metalliferous lode deposits of Alaska: U.S. Geological Survey Bulletin 1246, 254 p. Capps, S.R., 1937, Kodiak and adjacent islands, in Smith, P.S. and others, Mineral resources of Alaska, report on progress of investiagtions in 1935: U.S. Geological Survey Bulletin 880-C, p. 111-184, 1 plate, scale 1:250,000. Cobb, E.H., 1972, Metallic mineral resources map of the Kodiak quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-460, 1 map sheet, scale 1:250,000. Cobb, E.H., 1979, Summary of references to mineral occurrences (other than mineral fuels and construction materials) in the Afognak, Karluk, Kodiak, and Trinity Islands quadrangles, Alaska: U.S. Geological Survey Open-File Report 79-860, 49 p. MacKevett, E.M., Jr., and Holloway, C.D., 1977, Map showing metalliferous mineral deposits in the western part of southern Alaska: U.S. Geological Survey Open-File Report 77-169-F, 38 p., 1 sheet, scale 1:1,000,000. McGee, D.L., 1972, Kodiak Island and vicinity, Alaska, geology and mineral resources: Alaska Division of Geological and Geophysical Surveys Open-File Report AOF-31, 7 p., 1 sheet, scale 1:250,000. Martin, G.C., 1913, Mineral deposits of Kodiak and the neighboring islands, in Brooks, A.H., and others, Mineral resources of Alaska, 1912: U.S. Geological Survey Bulletin 542, p. 125-136.
5 entries listed. 5 valid minerals.
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Locality Updated: Longwood Range peridotite outcrops, Southland, South Island, New ZealandFrom Judy Rowe, 5th Dec 2013 00:19:36