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Marie Tharp (July 30, 1920 – August 23, 2006) was an American geologist and oceanographic cartographer. In the 1950s, she collaborated with geologist Bruce Heezen to produce the first scientific map of the Atlantic Ocean floor. [ 1 ] Her cartography revealed a more detailed topography and multi-dimensional geographical landscape of the ocean ...
USNS Marie Tharp (T-AGS-66)[2] is a Pathfinder -class oceanographic survey ship operated by the Military Sealift Command of the United States Navy. The seventh ship in her class, Marie Tharp is named for oceanographer Marie Tharp; the ship was renamed in 2023 from Maury. The-then Maury ' s keel was laid on 1 February 2011 in a ceremony at the ...
Heezen was born in Vinton, Iowa. An only child, he moved at age six with his parents to Muscatine, Iowa, where he graduated from high school in 1942. He received his B.A. from the University of Iowa in 1947. He received his M.A. in 1952 and a Ph.D in 1957 from Columbia University. Heezen collaborated extensively with cartographer Marie Tharp.
Continental drift is the theory, originating in the early 20th century, that Earth's continents move or drift relative to each other over geologic time. [1] The theory of continental drift has since been validated and incorporated into the science of plate tectonics, which studies the movement of the continents as they ride on plates of the Earth's lithosphere.
The episode was directed by Brannon Braga, written by Ann Druyan and Steven Soter, and featured the voice of Amanda Seyfried as geologist Marie Tharp. The episode explores the history of the Earth starting with the period of the Late Heavy Bombardment , approximately "3.8 to 4.1 billion years ago during which the Moon, Mercury, Venus, and the ...
Mid-ocean ridge cross-section (cut-away view) A mid-ocean ridge (MOR) is a seafloor mountain system formed by plate tectonics. It typically has a depth of about 2,600 meters (8,500 ft) and rises about 2,000 meters (6,600 ft) above the deepest portion of an ocean basin. This feature is where seafloor spreading takes place along a divergent plate ...
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Marie Tharp (1920–2006), oceanographic cartographer, co-created the first scientific map of the ocean floor with Bruce Heezen; Norman J. W. Thrower (1919–2002), professor at UCLA and author who was known for work in geography, surveying practices, and history; Waldo R. Tobler (1930–2018), developed the first law of geography