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Mainly:

Continental Plates-Granite

Oceanic Plates-Basalt

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14y ago
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14y ago

Continental crust is composed of all three rock types, but the vast majority of the continental crust is granitic in nature.

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14y ago

Continental plates are composed of igneous, sedimentary, and metamorphic rock, but the main composition of continental plates are granitic in nature.

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Q: What kind of rock are the tectonic plates composed of?
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