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Object: Globe Plate Tectonics
The way the world works
Marie Tharp and Bruce Heezen were oceanographers, cartographers and geologists at the Lamont-Doherty Earth Science Observatory of Columbia University from the late 1940s to 1977. Marie Tharp's papers in the Geography and Map Division contain more than 32,000 pieces including a handmade globe of the earth showing the ocean floor and the location of the mid-Atlantic Ocean ridge. This globe served to reveal positive data regarding the concept of continental drift and plate tectonics.
Marie Tharp Collection, Geography and Map division
More from the Library of Congress:
http://www.loc.gov/exhibits/treasures/trr078.html
http://memory.loc.gov/ammem/awhhtml/awgmd7/women_geog.html
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