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You are here: Home > Library > Geology of Umnak and Bogoslof Islands, Aleutian Islands, Alaska

citation imageByers, F. M. Jr., 1959, Geology of Umnak and Bogoslof Islands, Aleutian Islands, Alaska: in Investigations of Alaskan volcanoes, U.S. Geological Survey Bulletin 1028-L, p. 267-369, 5 sheets, scale 1 at 1:63,360, 1 at 1:96,000, and 1 at 1:300,000.
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DATA TABLES *Not all tables in a publication may be listed. Not all tables from a publication have data entered in the database.
194: Climatological data for two stations on Umnak Island, June 1942 to December 1948

195: Analyses of rocks from Umnak and Bogoslof Islands
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196: Petrographic summary of chemically analyzed rocks from Umnak and Bogoslof Islands

197: Petrographic analyses of plutonic rocks (modal analyses in volume percent)

198: Partial analyses of hydrothermally altered (potassium feldspathized) volcanic rocks near Bottleneck Pass

199: Petrographic analyses of specimens of hypersthene andesite of Mount Recheshnoi

200: Petrographic analyses of specimens of hypersthene andesite of Mount Recheshnoi

201: Comparative petrographic data: rhyodacite pumice of Mount Vsevidof and pumice fragments in ash beds of archeological profile, Nikolski

202: Petrographic analyses of basaltic andesite, andesite, and latite flows of Mount Vsevidof

203: Petrographic analyses of rocks in dark andesitic scoria bed of Mount Vsevidof cone

204: Petrographic analyses of agglomerate and ash marker beds of the Okmok volcanics

205: Petrographic analyses of mafic phenocryst basalt, Okmok Volcano

206: Optical data on anorthite phenocrysts in anorthite basalt near Inanudak Bay

207: Petrographic analyses of vitreous andesites and latite of Okmok Volcano

208: Petrographic analyses of rhyolite specimens and xenolithic inclusion, Okmok Volcano

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