Earth's Tectonic Plates

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From a ship in remote Pacific waters, a team of researchers is plumbing the mysteries of what drives and defines the giant tectonic plates that make up the ocean floors and continents. Join Lamont-Doherty Earth Observatory seismologist James Gaherty aboard the R/V Marcus G. Langseth, as he and colleagues peer up to 400 kilometers beneath one of earth’s oldest, deepest sections of seafloor.
Updated: 3 min 39 sec ago