Geologic structure produces a seismic response in certain spectral bands, which is often buried within the broadband data. For the purpose of identifying the geologic discontinuities in different scale of the same seismic data, the method named spectral coherence was put proposed. Using spectral decomposition techniques, the spectral amplitudes corresponding to the given geologic structure can be extracted, which also demonstrate higher resolution than seismic amplitudes. In order to obtain the quantitative measure of structural and stratigraphic discontinuities, eigenstructure-based coherence was employed in our work. Then, to void the phase rotation from the complex spectrum, a covariance matrix from both real and imagery components is computed, rather than just spectrum amplitude. The application of spectral coherence shows that it is valuable for identifying and quantifying different scale geologic discontinuity features, ranging from big scale faults to small scale fractures.


Article metrics loading...

Loading full text...

Full text loading...

This is a required field
Please enter a valid email address
Approval was a Success
Invalid data
An Error Occurred
Approval was partially successful, following selected items could not be processed due to error