
Jicha, B.R., Coombs, M.L., Calvert, A.T., and Singer, B.S., 2012, Geology and 40Ar/39Ar geochronology of the medium- to high-K Tanaga volcanic cluster, western Aleutians: Geological Society of America Bulletin, v. 124, n. 5/6, p. 842-856, doi:10.1130/B30472.1 .
http://dx.doi.org/10.1130/B30472.1
Fraser, G. D., and Barnett, H. F., 1959, Geology of the Delarof and westernmost Andreanof Islands, Aleutian Islands, Alaska: in Investigations of Alaskan volcanoes, U.S. Geological Survey Bulletin 1028-I, p. 211-248, 4 sheets, scale 3 at 1:25,000, and 1 at 1:250,000.
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plate 27 PDF : 3.6 MB
plate 28 PDF : 1.5 MB
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plate 30 PDF : 1.3 MB