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boundary wave

boundary wave A seismic wave which travels along a boundary between two media of contrasting properties, rather than propagating through the bodies of the media (compare BODY WAVE). Where the boundary is a free surface (e.g. ground—air, sea bed—sea water) these waves are called surface waves and give rise to ground roll and mud roll respectively. Boundary waves are of two types: Love waves and Rayleigh waves.

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