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Kansas Geological Survey, Open-file Report 2000-84
Interpretive Aspects of Seismic Coherence and Related Multi-trace Attributes
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Complex Faulting Example--Offshore Trinidad

(after Gersztenkorn et al., 1999)

Offshore Trinidad--1200 ms

on left is seismic slice, on right is coherence slice

Seismic and coherence time slices at 1200 ms through a structurally complex area offshore Trinidad.

on left is coherence slice, on right is dip/azimuth slice

Coherence and dip/azimuth time slices from offshore Trinidad. Note that the major fault on the right side of the coherence slice (yellow arrows) is highlighted in the dip/azimuth slice by an abrupt change in dip direction across the fault.

Offshore Trinidad--Seismic Data

The seismic profiles confirm the presence of faults

Seismic profiles A-A' and B-B' indicated in previous slide. Note that these profiles confirm the presence of the north-south trending faults on the coherence slice and the northward reflector dip on the dip-azimuth slice.

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Kansas Geological Survey, Petroleum Research Section
Updated January 2001
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