Main commodities | Pb; Zn |
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Other commodities | Cu |
Ore minerals | arsenopyrite; chalcopyrite; galena; sphalerite |
Gangue minerals | calcite |
Quadrangle map, 1:250,000-scale | AN |
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Quadrangle map, 1:63,360-scale | B-7 |
Latitude | 61.42 |
Longitude | -149.39 |
Nearby scientific data | Find additional scientific data near this location |
Location and accuracy | Located on northwestern slope (1,500 ft elevation) of Mount Eklutna, 3,500 ft southeast of Mirror Lake. Accurate within 1,000 ft. Labeled as 'Lead-zinc prospect' by Clark and Bartsch (1967), locality 38 of Cobb (1972), and locality 28 of MacKevett and Holloway (1977). |
Geologic descriptionCountry rock is greenstone and silicified rhyolite of Jurassic to Permian age. A vertical zone about 3 ft wide contains disseminations and small masses of arsenopyrite, pyrite, sphalerite and galena. In addition, a 2 inch wide calcite vein found within a zone of rusty gouge contains disseminated sphalerite, galena, and chalcopyrite (Landes, 1927). | |
Geologic map unit | (-149.392216897646, 61.4194609010009) |
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Mineral deposit model | Kuroko massive sulfide? (Cox and Singer, 1986; model 28a?). |
Mineral deposit model number | 28a? |
Age of mineralization | Jurassic or younger. |
Workings or exploration | Surface mapping and sampling. |
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Indication of production | None |
Additional commentsNot enough base metal mineralization exposed to encourage development work (Landes, 1927). |
MRDS Number | A011639 |
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References | |
Reporters | D.P. Bickerstaff (USGS contractor); S.W. Huss (USGS) |
Last report date | 7/30/1998 |