Permeability anisotropy of serpentinite and fluid pathways in a subduction zone

Research Article| October 01, 2011 Permeability anisotropy of serpentinite and fluid pathways in a subduction zone Seiya Kawano; Seiya Kawano Department of Earth and Planetary Systems Science, Hiroshima University, Higashi-Hiroshima, Hiroshima 739-8526, Japan Search for other works by this author on: GSW Google Scholar Ikuo Katayama; Ikuo Katayama * Department of Earth and Planetary Systems Science, Hiroshima University, Higashi-Hiroshima, Hiroshima 739-8526, Japan *E-mail: katayama@hiroshima-u.ac.jp. Search for other works by this author on: GSW Google Scholar Keishi Okazaki Keishi Okazaki Department of Earth and Planetary Systems Science, Hiroshima University, Higashi-Hiroshima, Hiroshima 739-8526, Japan Search for other works by this author on: GSW Google Scholar Author and Article Information Seiya Kawano Department of Earth and Planetary Systems Science, Hiroshima University, Higashi-Hiroshima, Hiroshima 739-8526, Japan Ikuo Katayama * Department of Earth and Planetary Systems Science, Hiroshima University, Higashi-Hiroshima, Hiroshima 739-8526, Japan Keishi Okazaki Department of Earth and Planetary Systems Science, Hiroshima University, Higashi-Hiroshima, Hiroshima 739-8526, Japan *E-mail: katayama@hiroshima-u.ac.jp. Publisher: Geological Society of America Received: 14 Feb 2011 Revision Received: 05 May 2011 Accepted: 10 May 2011 First Online: 09 Mar 2017 Online ISSN: 1943-2682 Print ISSN: 0091-7613 © 2011 Geological Society of America Geology (2011) 39 (10): 939–942. https://doi.org/10.1130/G32173.1 Article history Received: 14 Feb 2011 Revision Received: 05 May 2011 Accepted: 10 May 2011 First Online: 09 Mar 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn Email Permissions Search Site Citation Seiya Kawano, Ikuo Katayama, Keishi Okazaki; Permeability anisotropy of serpentinite and fluid pathways in a subduction zone. Geology 2011;; 39 (10): 939–942. doi: https://doi.org/10.1130/G32173.1 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 results of fluid-flow experiments revealed a significant permeability anisotropy in highly sheared serpentinite. Fluid flow parallel to serpentinite foliation is an order of magnitude or more higher than that normal to the foliation at confining pressures as high as ∼50 MPa. Although buoyancy is the driving force of upward fluid flow in the mantle, the strong anisotropy in permeability results in preferential fluid migration along the subducting plate interface, where extensive plastic deformation and a strong crystal-preferred orientation are expected to occur. The development of a relatively thin hydrous layer in the mantle wedge is consistent with the occurrence of highly anisotropic fluid migration rather than vertical flow. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.