Alaska Volcano Observatory - Geology of Umnak and Bogoslof Islands, Aleutian Islands, Alaska

GEOLOGY OF UMNAK AND BOGOSLOF ISLANDS, ALEUTIAN ISLANDS, ALASKA

Byers, 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.

full-text PDF : 3.5 MB

plate 39 PDF : 2.2 MB

plate 40 PDF : 3.9 MB

plate 41 PDF : 5.6 MB

plate 48 PDF : 85 KB

table 3 PDF : 149 KB

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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