What is the Moho?
The Moho is the Mohorovicic Discontinuity. A seismic discontinuity is a boundary between 2 layers with different properties. The Mohorovicic discontinuity (Moho) is the crust - mantle boundary (within the lithosphere) representing a sudden compositional change (e.g. gabbro changes to peridotite at the oceanic Moho).
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