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dc.contributor.authorWrona, Thilo
dc.contributor.authorFossen, Haakon
dc.contributor.authorLecomte, Isabelle
dc.contributor.authorEide, Christian Haug
dc.contributor.authorGawthorpe, Rob
dc.date.accessioned2021-03-18T11:19:12Z
dc.date.available2021-03-18T11:19:12Z
dc.date.created2020-11-28T13:15:47Z
dc.date.issued2020
dc.identifier.issn0191-8141
dc.identifier.urihttps://hdl.handle.net/11250/2734153
dc.description.abstractShear zones are common strain localization structures in the middle and lower crust and play a major role during orogeny, transcurrent movements and rifting alike. Our understanding of crustal deformation depends on our ability to recognize and map shear zones in the subsurface, yet the exact signatures of shear zones in seismic reflection data are not well constrained. To advance our understanding, we simulate how three outcrop examples of shear zones (Holsnøy - Norway, Cap de Creus - Spain, Borborema - Brazil) would look in different types of seismic reflection data using 2-D point-spread-function (PSF)-based convolution modelling, where PSF is the elementary response of diffraction points in seismic imaging. We explore how geological properties (e.g. shear zone size and dip) and imaging effects (e.g. frequency, resolution, illumination) control the seismic signatures of shear zones. Our models show three consistent seismic characteristics of shear zones: (1) multiple, inclined reflections, (2) converging reflections, and (3) cross-cutting reflections that can help interpreters recognize these structures with confidence.en_US
dc.language.isoengen_US
dc.publisherElsevieren_US
dc.rightsNavngivelse 4.0 Internasjonal*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/deed.no*
dc.titleSeismic expression of shear zones: Insights from 2-D point-spread-function based convolution modellingen_US
dc.typeJournal articleen_US
dc.typePeer revieweden_US
dc.description.versionpublishedVersionen_US
dc.rights.holderCopyright 2020 The Authors.en_US
dc.source.articlenumber104121en_US
cristin.ispublishedtrue
cristin.fulltextoriginal
cristin.qualitycode2
dc.identifier.doihttps://doi.org/10.1016/j.jsg.2020.104121
dc.identifier.cristin1853644
dc.source.journalJournal of Structural Geologyen_US
dc.identifier.citationJournal of Structural Geology. 2020, 140, 104121.en_US
dc.source.volume140en_US


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