
Drewes, Harald, Fraser, G. D., Snyder, G. L., and Barnett, H. F. Jr., 1961, Geology of Unalaska Island and adjacent insular shelf, Aleutian Islands, Alaska: in Investigations of Alaskan volcanoes, U.S. Geological Survey Bulletin 1028-S, p. 583-676, 3 sheets, scale 2 at 1:250,000 and 1 unknown.
full-text PDF : 3.3 MB
plate 75 PDF : 6.7 MB
plate 76 PDF : 113 KB
plate 77 PDF : 250 KB
table 1 PDF : 326 KB
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228: Chemical composition, normative values, CIPW nomenclature, Rittmann classification, and norms used in this report for Unalaska Island rocks
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