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  • Society of Exploration Geophysicists (SEG)  (2)
  • 1
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    Joint time-variant spectral analysis — Part 2: A case study (2018)
    Society of Exploration Geophysicists (SEG)
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    Publication Date: 2018
    Description: 〈span〉〈div〉Abstract〈/div〉The joint time-frequency and time-phase analysis applied to a field seismic data highlights lateral changes on preferential frequency and phase illumination at the target across secondary faults. Mutual thin-bed interference modeling suited for the case study area was performed using a well-tying well-based extracted wavelet assumed to be representative of the wavelet embedded on the input seismic data. The long coda of this wavelet is also present on the corresponding thin-bed waveform, indicating the possibility of more complex mutual interference patterns between thin beds and mutual interference at farther vertical separations between thin beds compared with what would occur for an embedded wavelet with a shorter coda. The observed lateral changes on preferential frequency and phase illumination on the seismic data are attributable to collocated lateral changes in the stacking patterns and variable occurrence of vertically adjacent thin beds, which are interpreted as lateral sediment deposition changes induced by the syndepositional activity of the secondary faults. This is a geologic scenario that had not been previously considered on the area until the evidence of this case study provide indirect support for it.〈/span〉
    Print ISSN: 2324-8858
    Electronic ISSN: 2324-8866
    Topics: Geosciences
    Published by Society of Exploration Geophysicists (SEG)
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  • 2
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    Sorting and visualization of spectral-decomposition data (2015)
    Society of Exploration Geophysicists (SEG)
    Details
    Publication Date: 2015-01-01
    Description: Spectral-decomposition data are sorted and visualized in a variety of ways. Useful sorting schemes include (1) pseudospectral volumes such as "tuning cubes," (2) time-frequency gathers, (3) space-frequency gathers, and (4) common-frequency volumes. Sorting spectral data into maps and cross sections has useful application in visualizing a combination of time, frequency, and offset dimensions.
    Print ISSN: 1070-485X
    Electronic ISSN: 1938-3789
    Topics: Geosciences
    Published by Society of Exploration Geophysicists (SEG)
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