From longitudinal slab curvature to slab rheology

Abstract

Research Article| August 01, 2009 From longitudinal slab curvature to slab rheology Christelle Loiselet; Christelle Loiselet * 1Geosciences Rennes, UMR 6118 CNRS, Université de Rennes 1, Rennes Cedex CS 35042, France *E-mail: christelle.loiselet@univ-rennes1.fr. Search for other works by this author on: GSW Google Scholar Laurent Husson; Laurent Husson 1Geosciences Rennes, UMR 6118 CNRS, Université de Rennes 1, Rennes Cedex CS 35042, France Search for other works by this author on: GSW Google Scholar Jean Braun Jean Braun 1Geosciences Rennes, UMR 6118 CNRS, Université de Rennes 1, Rennes Cedex CS 35042, France Search for other works by this author on: GSW Google Scholar Geology (2009) 37 (8): 747–750. https://doi.org/10.1130/G30052A.1 Article history received: 21 Jan 2009 rev-recd: 24 Mar 2009 accepted: 01 Apr 2009 first online: 03 Mar 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn MailTo Tools Icon Tools Get Permissions Search Site Citation Christelle Loiselet, Laurent Husson, Jean Braun; From longitudinal slab curvature to slab rheology. Geology 2009;; 37 (8): 747–750. doi: https://doi.org/10.1130/G30052A.1 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 The curvature of a subducting lithosphere is chiefly controlled by the viscosity ratio between the slab and the surrounding mantle. On the basis of a semi-analytical flow model, we explore the rheological dependence of the geometrical response of a viscous slab subjected to toroidal mantle flow. Mantle flow is excited by slab retreat at a prescribed mean velocity and is iteratively solved for by using a stream function approach, in turn providing the stresses that bend the slab. Comparison between model predictions and geophysical observations of slab curvature gives an average slab-to-mantle viscosity ratio of 45. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.