St. Croix’s Wonder Wall
Video courtesy of NOAA Ocean Exploration, Exploring Deep-sea Habitats off Puerto Rico and the U.S. Virgin Islands. Download larger version (mp4, 80.4 MB).

This video illustrates how erosion acting on layers of different strength has created a pronounced stepped texture in this beautiful canyon. Here, harder material is resistant to erosion and forms thin benches and overhangs, providing substrate for a number of different organisms.

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