Abstract
Research Article| February 01, 1993 Three-dimensional numerical modeling of compressional orogenies: Thrust geometry and oblique convergence Jean Braun Jean Braun 1Research School of Earth Sciences, Australian National University, Canberra, A.C.T. 2601, Australia Search for other works by this author on: GSW Google Scholar Author and Article Information Jean Braun 1Research School of Earth Sciences, Australian National University, Canberra, A.C.T. 2601, Australia Publisher: Geological Society of America First Online: 02 Jun 2017 Online ISSN: 1943-2682 Print ISSN: 0091-7613 Geological Society of America Geology (1993) 21 (2): 153–156. https://doi.org/10.1130/0091-7613(1993)021<0153:TDNMOC>2.3.CO;2 Article history First Online: 02 Jun 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn MailTo Tools Icon Tools Get Permissions Search Site Citation Jean Braun; Three-dimensional numerical modeling of compressional orogenies: Thrust geometry and oblique convergence. Geology 1993;; 21 (2): 153–156. doi: https://doi.org/10.1130/0091-7613(1993)021<0153:TDNMOC>2.3.CO;2 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentBy SocietyGeology Search Advanced Search Abstract Preliminary results from a three-dimensional, finite-element computer model of the dynamics of compressional orogens suggest that the deformation of the brittle crust is the superposition of two modes of deformation: a forced mode dictated by preexisting structures or plate-boundary geometry, and a natural mode resulting from the nonlinear elastoplastic rheology of the crust that may depend on the choice of a particular failure criterion. Natural modes of deformation exist in both the vertical (thrust planes) and horizontal (shear zones) directions, and there is a large degree of coupling between them (thrust planes accommodate vertical and horizontal shear). The obliqueness of convergence affects the geometry of thrusting; therefore, two-dimensional plane-strain models may be inappropriate to model orogens in which the direction of compression is oblique to the strike of the orogenic belt. This content is PDF only. Please click on the PDF icon to access. First Page Preview Close Modal You do not have access to this content, please speak to your institutional administrator if you feel you should have access.
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