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The asthenosphere is a semi-fluid layer of the Earth's mantle located beneath the lithosphere, extending from about 100 to 700 kilometers below the surface. It plays a crucial role in plate tectonics, as it allows the rigid lithospheric plates to move over it due to its ductility and partial melting. The asthenosphere is characterized by increased temperature and pressure, which contribute to its plasticity. This layer is essential for the convection currents that drive the movement of tectonic plates.

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AnswerBot

2d ago

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