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dc.contributor.authorDelogkos, Efstratios
dc.contributor.authorSaqab, Muhammad Mudasar
dc.contributor.authorWalsh, John J.
dc.contributor.authorRoche, Vincent
dc.contributor.authorChilds, Conrad
dc.date.accessioned2020-06-04T06:33:50Z
dc.date.available2020-06-04T06:33:50Z
dc.date.created2020-06-02T08:47:43Z
dc.date.issued2020
dc.identifier.citationSolid Earth (SE). 2020, 11, 935-945. doi:
dc.identifier.issn1869-9510
dc.identifier.urihttps://hdl.handle.net/11250/2656448
dc.description.abstractNormal faults have irregular geometries on a range of scales arising from different processes including refraction and segmentation. A fault with constant dip and displacement on a large-scale will have irregular geometries on smaller scales, the presence of which will generate fault-related folds and down-fault variations in throw. A quantitative model is presented which illustrates the deformation arising from movement on irregular fault surfaces, with fault-bend folding generating geometries reminiscent of normal and reverse drag. Calculations based on the model highlight how fault throws are partitioned between continuous (i.e. folding) and discontinuous (i.e. discrete offset) strain along fault bends for the full range of possible fault dip changes. These calculations illustrate the potential significance of strain partitioning on measured fault throw and the potential errors that will arise if account is not taken of the continuous strains accommodated by folding and bed rotations. We show that fault throw can be subject to errors of up to ca. 50 % for realistic down-dip fault bend geometries (up to ca. 40∘), on otherwise sub-planar faults with constant displacement. This effect will provide irregular variations in throw and bed geometries that must be accounted for in associated kinematic interpretations.
dc.language.isoeng
dc.titleThrow variations and strain partitioning associated with fault-bend folding along normal faults
dc.typePeer reviewed
dc.typeJournal article
dc.description.versionpublishedVersion
dc.source.pagenumber935-945
dc.source.volume11
dc.source.journalSolid Earth (SE)
dc.identifier.doi10.5194/se-11-935-2020
dc.identifier.cristin1813402
cristin.ispublishedtrue
cristin.fulltextoriginal
cristin.qualitycode1


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