1. Tracklines of multichannel seismic-reflection data collected by the U.S. Geological Survey in the Beaufort and Chukchi Seas in 1977 for which profiles and stack tapes are available [cartographic material] Yale Public content 1982. 2002-06-01T04:00:00Z. 2023-05-25T03:01:24Z. Geological Survey (U.S.). The Survey. English. text. Public. Beaufort Sea and Chukchi Sea.