<P> The Mohorovičić discontinuity ( Croatian pronunciation : ( moxorôʋiːt͡ʃit͡ɕ ) ) , usually referred to as the Moho , is the boundary between the Earth 's crust and the mantle . Named after the pioneering Croatian seismologist Andrija Mohorovičić , the Moho separates both the oceanic crust and continental crust from underlying mantle . The Moho lies almost entirely within the lithosphere ; only beneath mid-ocean ridges does it define the lithosphere -- asthenosphere boundary . The Mohorovičić discontinuity was first identified in 1909 by Mohorovičić , when he observed that seismograms from shallow - focus earthquakes had two sets of P - waves and S - waves , one that followed a direct path near the Earth 's surface and the other refracted by a high - velocity medium . </P>
<P> The Mohorovičić discontinuity ( Croatian pronunciation : ( moxorôʋiːt͡ʃit͡ɕ ) ) , usually referred to as the Moho , is the boundary between the Earth 's crust and the mantle . Named after the pioneering Croatian seismologist Andrija Mohorovičić , the Moho separates both the oceanic crust and continental crust from underlying mantle . The Moho lies almost entirely within the lithosphere ; only beneath mid-ocean ridges does it define the lithosphere -- asthenosphere boundary . The Mohorovičić discontinuity was first identified in 1909 by Mohorovičić , when he observed that seismograms from shallow - focus earthquakes had two sets of P - waves and S - waves , one that followed a direct path near the Earth 's surface and the other refracted by a high - velocity medium . </P>
the boundary that separates the crust from the mantle is the
the boundary that separates the crust from the mantle is the
Mohorovičić discontinuity
Mohorovičić discontinuity