P-waves slow down significantly when entering the liquid outer core from the solid mantle. This sudden velocity drop causes the waves to bend (refract) toward the center of the Earth. This bending creates a “gap” on the surface between 103° ...
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P-waves slow down significantly when entering the liquid outer core from the solid mantle. This sudden velocity drop causes the waves to bend (refract) toward the center of the Earth. This bending creates a “gap” on the surface between 103° ...