Research Article| November 01, 2005 Fingerprinting the water site in mantle olivine Andrew J. Berry; Andrew J. Berry 1Research School of Earth Sciences, Australian National University, Canberra, ACT 0200, Australia Search for other works by this author on: GSW Google Scholar Jörg Hermann; Jörg Hermann 1Research School of Earth Sciences, Australian National University, Canberra, ACT 0200, Australia Search for other works by this author on: GSW Google Scholar Hugh S.C. O'Neill; Hugh S.C. O'Neill 1Research School of Earth Sciences, Australian National University, Canberra, ACT 0200, Australia Search for other works by this author on: GSW Google Scholar Garry J. Foran Garry J. Foran 2Australian Synchrotron Research Program, Australian Nuclear Science and Technology Organisation, PMB 1, Menai, NSW 2234, Australia, and Australian National Beamline Facility, KEK, Photon Factory, Oho 1-1, Tsukuba-shi, Ibaraki-ken 305-0801, Japan Search for other works by this author on: GSW Google Scholar Geology (2005) 33 (11): 869–872. https://doi.org/10.1130/G21759.1 Article history received: 12 Apr 2005 rev-recd: 03 Jun 2005 accepted: 06 Jul 2005 first online: 02 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 Andrew J. Berry, Jörg Hermann, Hugh S.C. O'Neill, Garry J. Foran; Fingerprinting the water site in mantle olivine. Geology 2005;; 33 (11): 869–872. doi: https://doi.org/10.1130/G21759.1 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 Nominally anhydrous minerals such as olivine contain trace amounts of water and may accommodate the entire water budget of the upper mantle. Here we report for the first time synthetic olivines, crystallized experimentally under upper mantle conditions, that reproduce the most common and intense infrared hydroxyl stretching bands (at 3572 and 3525 cm−1) observed in spinel peridotite mantle olivines. These bands arise from water accommodated at point defects associated with the trace element Ti, and we suggest that this is the most important defect site in the shallow upper mantle. Additional hydrated defects may occur at higher pressures. We also identify bands related to water associated with Fe3+; these are unlikely to reflect equilibrium with the mantle, and indicate water incorporation during exhumation or retrogression. Water must be present at the defect site appropriate for the mantle, at the conditions of interest, for partitioning, seismic wave speed, and deformation experiments on hydrous olivine to be relevant. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.