What is the composition layer of the Mohorovicic discontinuity?

The Mohorovicic discontinuity, commonly referred to as the Moho, is the boundary between the Earth's crust and the underlying mantle. It is characterized by a transition from the less dense, silicate-rich rocks of the crust to the denser, magnesium and iron-rich rocks of the mantle below. This discontinuity signifies a compositional change, where the crust primarily consists of granitic and basaltic materials, while the mantle is composed of peridotite and other ultramafic rocks. The Moho is typically located at depths ranging from about 5 to 70 kilometers beneath the Earth's surface, depending on location.