The floor of heavier rock under the oceans is composed of

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asked Aug 8, 2018 226k views

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Jscott · Answer 1 · 2018-08-14T22:18:23+0000

The continental crust is composed mostly of granite. The oceanic crust consists of a volcanic lava rock called basalt. Basaltic rocks of the ocean plates are much denser and heavier than the granitic rock of the continental plates.

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The floor of heavier rock under the oceans is composed of

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