seismic discontinuity

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seismic discontinuity [′sīz·mik ‚dis·känt·ən′ü·əd·ē]

(geophysics)

A surface at which velocities of seismic waves change abruptly.

A boundary between seismic layers of the earth. Also known as interface; velocity discontinuity.

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No references found			Since residual peridotites outcrop, the seismic discontinuity must reflect another type of boundary. Oceanic crust and mantle structure by Mevel, Catherine; Cannat, Mathilde / Oceanus As a result of drilling, however, "everyone now agrees that the seismic discontinuity [at Galicia] is not the brittle-ductile boundary," says Winterer, of Scripps Institution of Oceanography in La Jolla, Calif. Ocean drilling: from aging crust to when continents bust by Weisburd, Stefi / Science News			Seim Seima Burial Ground Seimchan Seine seine net Seine River Seine, Bay of the Seine-et-Marne Seine-et-Oise Seine-Maritime Seine-Saint-Denis Seiner Seinfeld, Jerry Seining, Deep-Water Seipel, Ignaz Seir Seishin seismic seismic activity seismic anisotropy seismic area seismic belt seismic bracing seismic constant seismic detector seismic discontinuity seismic efficiency seismic event Seismic Exploration Seismic Exploration Station seismic gradient seismic hazard seismic intensity seismic load seismic map Seismic Microzoning seismic profiler seismic prospecting seismic protection Seismic Ray seismic reflector seismic risk Seismic Scale seismic sea wave Seismic Sensor seismic shooting seismic stratigraphy seismic strengthening seismic survey seismic tomography Seismic Unit			SEISMED seismic seismic Seismic Acoustic Magnetic Seismic Acoustic Sensor Seismic Acoustics seismic activity seismic activity seismic activity seismic activity Seismic Analysis Code Seismic anisotropy seismic area seismic array seismic belt seismic bracing Seismic Cone Penetration Test seismic constant Seismic Data Acquisition System Seismic Data Analysis Center Seismic Data Library System Seismic Data Listing Service Ltd Seismic Data System Library Seismic Design Category Seismic Design Criteria Seismic Design Procedures Group seismic detector Seismic Dilatometer Marchetti Test seismic discontinuity seismic disturbance Seismic Earthquake seismic efficiency seismic event seismic exploration Seismic Exploration of the Deep Altiplano Seismic Exploration Station Seismic Force Resisting System Seismic Force-Resisting System seismic gradient Seismic hazard Seismic Hazard Mapping Program Seismic Hazard Zone Seismic Hazards Investigation in Puget Sound Seismic Hazards Mapping Act Seismic Induced Frame Instability Seismic Information Gathering and Network Alert seismic intensity Seismic Intrusion Detector/Device seismic load seismic map Seismic MicroTechnology Seismic Microzoning Seismic Performance Assessment and Rehabilitation

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