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The boundary between the earth's crust and the underlying mantle, averaging 8 kilometers (5 miles) in depth under the oceans and 32 kilometers (20 miles) in depth under the continents.
[After Andrija Mohorovičić (1857-1936), Croatian geophysicist.]
(Geological Science) the boundary between the earth's crust and mantle, across which there is a sudden change in the velocity of seismic waves. Often shortened to: Moho
[C20: named after Andrija Mohorovičić (1857–1936), Croatian geologist]
The boundary between the Earth's crust and mantle. The Mohorovičić discontinuity is located at an average depth of 5 miles (8 kilometers) under the oceans and 20 miles (32 kilometers) under the continents. Scientists discovered this boundary because they noticed that the velocity of seismic waves increases sharply as the waves pass from the Earth's crust into the mantle.
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|Noun||1.||Mohorovicic discontinuity - the boundary between the Earth's crust and the underlying mantle; "the Mohorovicic discontinuity averages 5 miles down under oceans and 20 miles down under continents"|
geology - a science that deals with the history of the earth as recorded in rocks