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

K.C. Bayer; R.E. Mattick; T.R. Bruns; George Plafker

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USGS · 70162295

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

K.C. Bayer·R.E. Mattick·T.R. Bruns·George Plafker

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Abstract

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.

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Journal of Research of the U.S. Geological Survey Article

Source-reported bounding extent: 59° to 63° latitude; -145° to -140° longitude. This indicates report coverage, not an exact sampling location. View area on OpenStreetMap.

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K.C. Bayer, R.E. Mattick, T.R. Bruns, George Plafker. 1978. Refraction studies between Icy Bay and Kayak Island, eastern Gulf of Alaska. https://pubs.usgs.gov/publication/70162295

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