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Oceanic crust

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DEPED TEACHER|WEEK 1(LESSON 1)| OCEANIC CRUST VS CONTINENTAL CRUST| GRADE 10 SCIENCE| iLearned

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Oceanic vs. Continental Crust

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Introduction to oceanic and continental crust

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Oceanic Crust Layers

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Oceanic Crust vs. Continental Crust

Oceanic crust is the uppermost layer of the oceanic portion of a tectonic plate. It is composed of the upper oceanic crust, with pillow lavas and a dike complex, and the lower oceanic crust, composed of troctolite, gabbro and ultramafic cumulates. The crust overlies the solidified and uppermost layer of the mantle. The crust and the solid mantle layer together constitute oceanic lithosphere.
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    • Composition 

    • Magnetic anomalies