The oceanic crust is a combination of
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➡️chemical compound (SiO2) that makes up most of the Earth's rocks. most common group of minerals, all of which include the elements silicon (Si) and oxygen (O). rocks, mostly silicates and magnesium, making up most of Earth's oceanic crust. process of one tectonic plate melting, sliding, or falling beneath another...
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it the combination of mafic rocks and sima and minerals like magnesium and zinc.
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