The boundary between the crust and the rest of the lithospheric upper mantle is a discontinuity known as the
A) Gutenberg.
B) mantle.
C) Moho.
D) lithospheric layer.

Question

Quizplus · Accepted Answer

The Moho, also known as the Mohorovičić discontinuity, is the boundary between the Earth's crust and the underlying lithospheric mantle. This boundary is marked by a significant increase in seismic wave velocities, indicating a change in composition and density. The Gutenberg and mantle layers are both within the Earth's interior and are not associated with the Moho. The lithospheric layer is not a specific boundary, but rather a region that includes both the crust and uppermost mantle layers.

The Boundary Between the Crust and the Rest of the Lithospheric