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event

1. n. [Geophysics]

An appearance of seismic data as a diffraction, reflection, refraction or other similar feature produced by an arrival of seismic energy. An event can be a single wiggle within a trace, or a consistent lining up of several wiggles over several traces. An event in a seismic section can represent a geologic interface, such as a fault, unconformity or change in lithology.

See: abnormal eventsattenuatebow tiecharactercoherence filteringdim spotinterval timeisochron maplaglong-path multiplemultiple reflectionpeg-leg multiplephantompickprimary reflectionprocessingseismic sectionshort-path multiplesideswipesignaturesmilespace frequency domaintuning effect

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