Changes

==Analyzing seismic sections==

==Analyzing seismic sections==

We identify depositional sequences in seismic sections by finding repetitive patterns of seismic reflections. To test the validity of the sequences identified from seismic reflection profiles, we compare the seismic sequences with sequences identified from biostratigraphic and well log data to see if they make geologic sense. Identifying depositional sequences can be complicated by postdepositional erosion and deformation. It is often helpful to begin a [[seismic sequence analysis]] using a grid of relatively few profiles with an area of relatively undeformed rocks.

We identify depositional sequences in seismic sections by finding repetitive patterns of seismic reflections. To test the validity of the sequences identified from seismic reflection profiles, we compare the seismic sequences with sequences identified from biostratigraphic and well log data to see if they make geologic sense. Identifying depositional sequences can be complicated by postdepositional erosion and [[deformation]]. It is often helpful to begin a [[seismic sequence analysis]] using a grid of relatively few profiles with an area of relatively undeformed rocks.

==GOM basin example==

==GOM basin example==