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1. n. [Geophysics]

The maximum positive or upward deflection, also known as the crest, of the seismic wavelet. The trough is the maximum negative amplitude or downward deflection of the wave. Seismic interpreters commonly pick or interpret seismic data on paper sections along the trough of a wavelet rather than the normally solid-filled peak for ease of viewing.

Synonyms: crest

Antonyms: trough

See: amplitudepolaritypolarity standardwavewavelet

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