zero phase

Pertaining to seismic data whose wavelet is symmetrical about zero time. Deconvolution during seismic processing can convert data of mixed phase to zero-phase data, but is not always successful. Zero-phase data tend to provide sharper definition and less distortion between stratigraphic features in the subsurface, such as sand and shale layers.

Related terms:

• foehn phase
• volume phase
• phase age
• phase inequality
• Deister phase
• surface phase
• age of phase inequality