Changes

==Reflection strength==

==Reflection strength==

Reflection strength is a measure of the total energy of a reflection, manifested in reflection amplitude. It is independent of phase. Reflection strength is also referred to as the instantaneous amplitude, or envelope amplitude. Analysis within specific reflectors can give us clues to changes in lithology or [[porosity]].

Reflection strength is a measure of the total energy of a reflection, manifested in reflection amplitude. It is independent of phase. Reflection strength is also referred to as the instantaneous amplitude, or envelope amplitude. Analysis within specific reflectors can give us clues to changes in lithology or [[porosity]].

==Instantaneous phase==

==Instantaneous phase==

Three-dimensional coherence is a measure of the similarity of neighboring seismic traces in 3-D data. It is useful for mapping paleogeomorphology and faults.<ref name=ch21r4>Bahorich, M., S., Farmer, S., L., 1995, 3-D seismic discontinuity for faults and stratigraphic features: the coherence cube: The Leading Edge, vol. 14, no. 10, p. 1053–58., 10., 1190/1., 1437077</ref>

Three-dimensional coherence is a measure of the similarity of neighboring seismic traces in 3-D data. It is useful for mapping paleogeomorphology and faults.<ref name=ch21r4>Bahorich, M., S., Farmer, S., L., 1995, 3-D seismic discontinuity for faults and stratigraphic features: the coherence cube: The Leading Edge, vol. 14, no. 10, p. 1053–58., 10., 1190/1., 1437077</ref>

The map below is a 3-D coherency slice of a Miocene channel complex in the Nile Delta, Egypt.

[[:file:exploring-for-stratigraphic-traps_fig21-29.png|Figure 1]]is a 3-D coherency slice of a Miocene channel complex in the Nile Delta, Egypt.

 

==See also==

==See also==