Mohorovicic discontinuity


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Related to Mohorovicic discontinuity: crust, Gutenberg Discontinuity, Convection current

Mo·ho·ro·vi·čić discontinuity

 (mō′hə-rō′və-chĭch)
n.
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.]

Mohorovičić discontinuity

(ˌməʊhəˈrəʊvɪtʃɪtʃ)
n
(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]

Mo·ho·ro·vi·čić discontinuity

(mō′hə-rō′və-chĭch)
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.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.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
References in periodicals archive ?
It was a discontinuity and came to be known as the Mohorovicic discontinuity.
These include a deepening of the deep crustal marker, the Mohorovicic Discontinuity, a strong, deep-seated magnetic structure and major fault systems striking northeast-southwest roughly parallel to the Peace River Arch structure.
Named for the Mohorovicic discontinuity, the boundary between the crust and mantle, the ambitious attempt to penetrate 6 kilometers of crustal rock was sunk by cost overruns and management problems and scrapped after a few test holes.