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Refraction studies between Icy Bay and Kayak Island, eastern Gulf of Alaska

October 1, 1978

Results of five seismic refraction lines shot by the U.S. Geological Survey in the Gulf of Alaska between Icy Bay and Kayak Island indicate the following: (1) The Continental Shelf is underlain by as much as 11 km of sedimentary rock of probable Tertiary age where refraction velocities range from 1.2 to 5.5 kilometers per second; (2) a section approximately 5 km thick, which has velocities of 4.1-5.5 km/s and which could represent the Orca Group (lower Tertiary), is present in the western part of the study area but not in the eastern part; and (3) consistent basement velocities of approximately 7.0 km/s could indicate oceanic crust underlying the continental margin.

Citation Information

Publication Year 1978
Title Refraction studies between Icy Bay and Kayak Island, eastern Gulf of Alaska
Authors K.C. Bayer, R. E. Mattick, T. R. Bruns, George Plafker
Publication Type Article
Publication Subtype Journal Article
Series Title Journal of Research of the U.S. Geological Survey
Index ID 70162295
Record Source USGS Publications Warehouse