Secrets of the sea floor

July 23, 2015
Alisson Clark

Miles below the ocean’s surface, where the water is just above freezing and the pressure crushes in at two tons per square inch, Mike Perfit feels right at home.

Few people have spent more time on the sea floor than Perfit, a University of Florida geologist who studies volcanoes that result from seafloor spreading. Here, he shares secrets from one of the planet’s last mysterious places, including some from his new book “Discovering the Deep.”

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