Tuesday, March 24, 2015

Velocity Anomalies Associated With Channels

Channels often produces a velocity anomaly. If the channel cuts down into consolidated material, there is a good chance that the channel fill will have lower velocity than the adjacent rock. Such a channel would cause a velocity push-down. Channels or canyons in the sea bed have the same effect.

In some channels, however, the channel fill can have a higher velocity than the surrounding sediments and produce a velocity pull-up.


Reference : Michael E. Badley, Practical Seismic Interpretation

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