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Marie Tharp pioneered mapping the bottom of the ocean 6 decades ago – scientists are still learning about Earth’s last frontierBeginning in 1957, Tharp and her research partner, Bruce Heezen, began publishing the first comprehensive maps that showed the main features of the ocean bottom ... and a rift valley in ...
Tharp identified mountains and a rift valley in the center of the Atlantic Ocean where the two continents could have been ripped apart. Thanks to Tharp’s hand-drawn renditions of the ocean floor, I ...
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