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| a subdivision of the mantle situated below the lithosphere. |
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| theory that originally proposed that the continents are rafted about. |
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| mountains formed in part by igneous activity associated with the subduction of oceanic lithosphere beneath a continent |
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| a boundary in which two plates move together, causing one of the slabs of lithosphere to be consumed into the mantle as it descends beneath an overriding plate. |
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| the temperature above which a material loses its magnetization |
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| an elongated depression in the sea floor produced by bending of oceanic crust during subduction |
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