Extremely high solubility of rutile in chloride and fluoride-bearing metamorphic fluids: An experimental investigation

Abstract

Research Article| April 01, 2010 Extremely high solubility of rutile in chloride and fluoride-bearing metamorphic fluids: An experimental investigation J.F. Rapp; J.F. Rapp 1School of GeoSciences, King's Buildings, West Mains Road, University of Edinburgh, Edinburgh EH9 3JW, UK Search for other works by this author on: GSW Google Scholar S. Klemme; S. Klemme 1School of GeoSciences, King's Buildings, West Mains Road, University of Edinburgh, Edinburgh EH9 3JW, UK2Institut für Mineralogie, Corrensstrasse 24, Universität Münster, 48149 Münster, Germany Search for other works by this author on: GSW Google Scholar I.B. Butler; I.B. Butler 1School of GeoSciences, King's Buildings, West Mains Road, University of Edinburgh, Edinburgh EH9 3JW, UK3ECOSSE (Edinburgh Collaborative of Subsurface Science and Engineering), A Joint Research Institute of the Edinburgh Research Partnership in Engineering and Mathematics, University of Edinburgh, Edinburgh EH8 9YL, UK Search for other works by this author on: GSW Google Scholar S.L. Harley S.L. Harley 1School of GeoSciences, King's Buildings, West Mains Road, University of Edinburgh, Edinburgh EH9 3JW, UK Search for other works by this author on: GSW Google Scholar Author and Article Information J.F. Rapp 1School of GeoSciences, King's Buildings, West Mains Road, University of Edinburgh, Edinburgh EH9 3JW, UK S. Klemme 1School of GeoSciences, King's Buildings, West Mains Road, University of Edinburgh, Edinburgh EH9 3JW, UK2Institut für Mineralogie, Corrensstrasse 24, Universität Münster, 48149 Münster, Germany I.B. Butler 1School of GeoSciences, King's Buildings, West Mains Road, University of Edinburgh, Edinburgh EH9 3JW, UK3ECOSSE (Edinburgh Collaborative of Subsurface Science and Engineering), A Joint Research Institute of the Edinburgh Research Partnership in Engineering and Mathematics, University of Edinburgh, Edinburgh EH8 9YL, UK S.L. Harley 1School of GeoSciences, King's Buildings, West Mains Road, University of Edinburgh, Edinburgh EH9 3JW, UK Publisher: Geological Society of America Received: 06 Oct 2009 Revision Received: 22 Oct 2009 Accepted: 29 Oct 2009 First Online: 09 Mar 2017 Online ISSN: 1943-2682 Print ISSN: 0091-7613 © 2010 Geological Society of America Geology (2010) 38 (4): 323–326. https://doi.org/10.1130/G30753.1 Article history Received: 06 Oct 2009 Revision Received: 22 Oct 2009 Accepted: 29 Oct 2009 First Online: 09 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 J.F. Rapp, S. Klemme, I.B. Butler, S.L. Harley; Extremely high solubility of rutile in chloride and fluoride-bearing metamorphic fluids: An experimental investigation. Geology 2010;; 38 (4): 323–326. doi: https://doi.org/10.1130/G30753.1 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 Rutile (TiO2) is an important high field strength element sequestering phase, and thus understanding its solubility in metamorphic fluids is important if we are to understand terrestrial trace element cycling. Titanium is often assumed to be fluid immobile, and previous experimental data suggest that rutile has very low solubility in H2O. However, fluids in high-temperature metamorphic rocks are known to be more complex in composition. The solubility of rutile in chloride and fluoride-rich hydrous fluids was determined experimentally at 0.5 GPa and high temperatures. The experimental results indicate much higher rutile solubility in brines compared to pure H2O. In chloride brines solubility was 2–4 times higher than in H2O, and in fluoride brines solubility was elevated 20–100 times. The results imply that titanium may be much more mobile in metamorphic fluids than previously anticipated, as solubility is critically dependent on fluid chemistry. We also present a possible mechanism for rutile precipitation in metamorphic veins due to a change in fluid chemistry, following the precipitation of halogen-rich minerals such as apatite. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.