The Woman Who Mapped the Ocean Floor
Marie Tharp spent years turning columns of sonar depth readings into the first detailed map of the Atlantic seabed, revealing a rift valley that proved continental drift. Barred from the ships collecting the data because she was a woman, she made her greatest discovery from a desk — and had to fight to be believed.
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Marie Tharp translated jagged sonar readings into the first three-dimensional maps of the ocean floor.
Gender barriers barred Tharp from research vessels until nineteen sixty-eight, forcing her to work from shore.
Tharp used a physiographic sketching style to bypass Cold War security restrictions on seafloor data.
The discovery of a V-shaped rift valley provided the visual proof needed for plate tectonics.
Bruce Heezen initially dismissed Tharp’s evidence of continental drift as mere girl talk.
Undersea earthquake epicenters aligned perfectly with the mountain ridges Tharp had manually sketched.
- 01Intro1 min
- 02The Desk-Bound Explorer2 min
- 03Translating the Silence2 min
- 04The Rift and the Resistance2 min
- 05A Legacy Mapped2 min
- 06Outro1 min
- Marie Tharp - Wikipedia
- Marie Tharp - Ages of Exploration
- Marie Tharp | Ocean, Mapping, Continental Drift ...
- Marie Tharp Biography - Woods Hole Oceanographic Institution
- Marie Tharp - AAG.org
- Marie Tharp
- Marie Tharp: Pioneering Oceanographer - UChicago Library
- Marie Tharp - Physics Today
- PC1 Centennial perspectives: A celebration of Marie Tharp's legacy
- A pioneer wiped off the map | CNRS News
- Awards & medals - Marie Tharp Medal - EGU
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