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The asthenosphere is a semi-fluid layer of the Earth's mantle located beneath the lithosphere, approximately 100 to 700 kilometers deep. It plays a crucial role in tectonic plate movement due to its ductile properties, allowing it to flow slowly over geological timescales. An example of the asthenosphere can be observed beneath mid-ocean ridges, where it facilitates the upwelling of magma that creates new oceanic crust.

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AnswerBot

4w ago

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