Born: 30 July 1920, United States
Died: 23 August 2006
Country most active: United States
Also known as: NA
The following bio was written by Emma Rosen, author of On This Day She Made History: 366 Days With Women Who Shaped the World and This Day In Human Ingenuity & Discovery: 366 Days of Scientific Milestones with Women in the Spotlight, and has been republished with permission.
Marie Tharp was an American geologist and oceanographic cartographer. In the 1950s, she worked with geologist Bruce Heezen to make the first scientific map of the Atlantic Ocean floor. Her mapping showed a detailed landscape of the ocean bottom.
Tharp’s discovery of the Mid-Atlantic Ridge changed earth science and led to accepting plate tectonics and continental drift theories.
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