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Taking the Floor

Taking the Floor

On April 11, 1924, oceanographer and marine geologist, Bruce Charles Heezen was born. He became an expert on continental drift and the undersea landslides that reshape ocean floors. A pioneer in plate tectonics, he was leader of the team from Columbia University that discovered…

Graphic Plots

Graphic Plots

On July 30, 1920, Marie Tharp was born in Ypsilanti, Michigan. A pioneering oceanographic cartographer, she mapped the ocean floor and co-discovered the Mid-Oceanic Ridges, along with her colleague Bruce Heezen, Columbia University’s team leader of ocean ridge mapping. As they worked down the…