The east coast of the United States showing the continental shelf, shelf break, continental slope, and sediment types

The east coast of the United States showing the continental shelf, shelf break, continental slope, and sediment types. This was one of the first published maps of this nature. The Coast Survey had rediscovered the continental shelf break in 1848. Count Luigi Marsili had first noted it in the Gulf of Lyon about 1720 but that information had been forgotten in the mid Nineteenth Century.

Photo Category: Exploration - Maps