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| fountain of asthenospheric rock below a got spot |
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| source of heat for the interior of earth |
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| fine grain, deep-sea, organic deposit on the ocean floor |
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| preserved magnetic polarity in a rock |
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| name for an atom that is electrically charge because of an excess or deficit of electrons |
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| submerged, large, deeply eroded valley that extends across the shelf and slope |
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| gnereal term for sediment eroded from content or volcanic island |
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| rock type that copses the continent |
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| flat and featureless part of the sea floor |
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| transportation by bouncing |
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