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1. n. [Geophysics]

An interface between layers of contrasting acoustic, optical or electromagnetic properties. Waves of electromagnetism, heat, light and sound can be reflected at such an interface. In seismic data, a reflector might represent a change in lithology, a fault or an unconformity. A reflector is expressed as a reflection in seismic data.

See: acoustic basementacoustic impedancecommon depth pointcommon midpointcommon reflection pointFresnel zonemoveoutnormal moveoutreflectiontietwo-way traveltime

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