Sensitivity of the lateral correlation function in deep seismic reflection data

Details Sensitivity of the lateral correlation function in deep seismic reflection data Sensitivity of the lateral correlation function in deep seismic reflection data

Nov 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992georl..19.2263h&link_type=abstract

Geophysical Research Letters (ISSN 0094-8276), vol. 19, no. 22, p. 2263-2266.

Computer Science

Performance

12

Data Correlation, Earth Crust, Seismic Waves, Structural Properties (Geology), Wave Reflection, Propagation Velocity, Seismology, Wave Scattering

Scientific paper

In the absence of multiple scattering the lateral correlation function of the reflected wavefield can be related to the lateral correlation function of the medium. We have analyzed the lateral correlation function of a series of synthetic seismograms from stochastic models of reflective lower crust with the structural and petrophysical statistics of the Ivrea Zone. Our results show that in the presence of Ivrea-type lower crustal heterogeneity the lateral correlation function of the backscattered wavefield is insensitive to the lateral correlation function of the scattering medium, which suggests that multiple scattering is important in the reflective lower crust. This interpretation is consistent with lower crustal reflections commonly being shorter than a Fresnel zone, the absence of clear diffractions and the poor performance of standard migration algorithms on deep seismic reflection data.

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