Abstract
Abstract Marine seismic reflection profiles across McMurdo Sound have been interpreted using the results of the MSSTS-1 drillhole. The data show that the sedimentary sequence under McMurdo Sound is mainly early Tertiary or older in age, with the post-Eocene section less than 800 m thick. The seismic records show major erosion of the younger sediments, possibly by slumping, from the western slope into the deeper water of McMurdo Sound.
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