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mid-ocean ridge
(redirected from Mid-oceanic ridges)

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mid-ocean ridge: see plate tectonics plate tectonics, theory that unifies many of the features and characteristics of continental drift and seafloor spreading into a coherent model and has revolutionized geologists' understanding of continents, ocean basins, mountains, and earth history.
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mid-ocean ridge [′mid¦ō·shən ′rij]
(geology)


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The trough associated with the mid-oceanic ridges is deeply depressed, and on occasion extends into the lower mantle.
Just as the scars and wrinkles on a person's skin can tell the story of a life, the faults and topography of the seafloor may reveal a history of the ocean crust as it is churned out at mid-oceanic ridges.
For researchers who have used multibeam systems in their studies, "the data have been like allowing us to remove several layers of opaque glass and get closer to an accurate definition of the seafloor," says Jeff Fox at the University of Rhode Island at Narragansett, who uses academic Seabeam systems in his research on the magmatic and tectonic processes at mid-oceanic ridges.
 
 
 
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