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Mohorovicic discontinuity |
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Mohoor Mohorovicic discontinuityBoundary between the Earth's crust and its mantle. The Moho lies at a depth of about 22 mi (35 km) below continents and about 4.5 mi (7 km) beneath the oceanic crust. Modern instruments have determined that the velocity of seismic waves increases rapidly at this boundary. The Moho was named for Andrija Mohorovicic. Mohorovičić discontinuity [‚mō·hō′rō·və‚chich dis‚känt·ən′ü·əd·ē] (geophysics) A seismic discontinuity that separates the earth's crust from the subjacent mantle, inferred from travel time curves indicating that seismic waves undergo a sudden increase in velocity. Also known as Moho. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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Inside Earth, critical reflections occur when seismic waves from an earthquake hit a boundary called the Mohorovicic discontinuity, or "Moho," which forms the border between the low-density crust and the higher-density mantle. |
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