Modeling of mineral δ18O values in an igneous aureole: Closed-system model predicts apparent open-system δ18O values

Abstract

Research Article| December 01, 1991 Modeling of mineral δ18O values in an igneous aureole: Closed-system model predicts apparent open-system δ18O values Gawen R.T. Jenkin; Gawen R.T. Jenkin 1Scottish Universities Research and Reactor Centre, East Kilbride, Glasgow G75 OQU, Scotland Search for other works by this author on: GSW Google Scholar Claire Linklater; Claire Linklater 2Department of Geology and Geophysics, University of Edinburgh, Edinburgh EH9 3JW, Scotland Search for other works by this author on: GSW Google Scholar Anthony E. Fallick Anthony E. Fallick 1Scottish Universities Research and Reactor Centre, East Kilbride, Glasgow G75 OQU, Scotland Search for other works by this author on: GSW Google Scholar Geology (1991) 19 (12): 1185–1188. https://doi.org/10.1130/0091-7613(1991)019<1185:MOMOVI>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 Gawen R.T. Jenkin, Claire Linklater, Anthony E. Fallick; Modeling of mineral δ18O values in an igneous aureole: Closed-system model predicts apparent open-system δ18O values. Geology 1991;; 19 (12): 1185–1188. doi: https://doi.org/10.1130/0091-7613(1991)019<1185:MOMOVI>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 Differences in oxygen isotope compositions between quartz and alkali feldspar in partially melted pelitic and semipelitic rocks from the aureole of the Ballachulish igneous complex (Scotland) range from relatively normal values of 1‰ down to nonequilibrium reversed values of -0.7‰. Normally, an open- system process (i.e., fluid infiltration after crystallization) would be invoked to explain such reversed values. However, application of a closed-system model to these rocks shows that the observed isotopic differences are actually consistent with such behavior. In this case, no fluid infiltration is required to explain the observed oxygen isotope compositions. 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.