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Seafloor profiles from 1957 and 2014

By Coastal and Marine Hazards and Resources Program 2016 (approx.)
A plot shows the seafloor, distance versus water depth, for two different years.
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Detailed Description

Seafloor profiles of Dangerous Passage in Alaska, from 1957 (green) and 2014 (black) show that sediment was lost from the intermediate basin and gained in the distal (lowermost) basin.

Sources/Usage

Public Domain.