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dc.contributor.advisorFomel, Sergey B.en
dc.creatorAl-Hadab, Salah Ahmaden
dc.date.accessioned2013-04-25T17:46:30Zen
dc.date.issued2012-12en
dc.date.submittedDecember 2012en
dc.identifier.urihttp://hdl.handle.net/2152/20033en
dc.descriptiontexten
dc.description.abstractAnalysis of scattered, or diffraction energy (the seismic response of small-scale objects) in the seismic data from Canterbury Basin, New Zealand reveals additional geological information about depositional patterns in sedimentary deposits. Diffrac- tion images from the seismic response for Canterbury Basin provide complementary interpretation tools to the conventional specular reflection images. To image diffrac- tions for a dataset from Canterbury Basin, I take the following steps: First, I attenuate multiples using a surface multiple prediction algorithm to predict multiples and apply regularized nonstationary regression to adaptively subtract the predicted multiples. Next, I separate diffractions using the plane-wave destruction method. The plane- wave destruction method removes conventional reflected energy in order to enhance the diffracted energy. I then apply a velocity continuation method on diffraction data to estimate migration velocities and then migrate the data using Kirchhoff migration in the dip-angle-gather domain. The resultant conventional and diffraction images are improved images suitable for geological interpretation of prograding sediment drifts.en
dc.format.mimetypeapplication/pdfen
dc.language.isoen_USen
dc.subjectDiffraction imagingen
dc.subjectSediment driftsen
dc.subjectDiffraction energyen
dc.subjectCanterbury Basinen
dc.subjectNew Zealanden
dc.titleDiffraction imaging of sediment drifts in the Canterbury Basin, New Zealanden
dc.date.updated2013-04-25T17:46:31Zen
dc.contributor.committeeMemberStoffa, Paulen
dc.contributor.committeeMemberTatham, Roberten
dc.description.departmentGeological Sciencesen
thesis.degree.departmentGeological Sciencesen
thesis.degree.disciplineGeological Sciencesen
thesis.degree.grantorThe University of Texas at Austinen
thesis.degree.levelMastersen
thesis.degree.nameMaster of Science in Geological Sciencesen


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