Metal fractionation between magmatic brine and vapor, determined by microanalysis of fluid inclusions

Research Article| August 01, 1999 Metal fractionation between magmatic brine and vapor, determined by microanalysis of fluid inclusions C. A. Heinrich; C. A. Heinrich 1Eidgenössische Technische Hochschule, ETH Zürich, Isotope Geology and Mineral Resources, ETH Zentrum NO, 8092 Zürich, Switzerland Search for other works by this author on: GSW Google Scholar D. Günther; D. Günther 1Eidgenössische Technische Hochschule, ETH Zürich, Isotope Geology and Mineral Resources, ETH Zentrum NO, 8092 Zürich, Switzerland Search for other works by this author on: GSW Google Scholar A. Audétat; A. Audétat 1Eidgenössische Technische Hochschule, ETH Zürich, Isotope Geology and Mineral Resources, ETH Zentrum NO, 8092 Zürich, Switzerland Search for other works by this author on: GSW Google Scholar T. Ulrich; T. Ulrich 1Eidgenössische Technische Hochschule, ETH Zürich, Isotope Geology and Mineral Resources, ETH Zentrum NO, 8092 Zürich, Switzerland Search for other works by this author on: GSW Google Scholar R. Frischknecht R. Frischknecht 1Eidgenössische Technische Hochschule, ETH Zürich, Isotope Geology and Mineral Resources, ETH Zentrum NO, 8092 Zürich, Switzerland Search for other works by this author on: GSW Google Scholar Author and Article Information C. A. Heinrich 1Eidgenössische Technische Hochschule, ETH Zürich, Isotope Geology and Mineral Resources, ETH Zentrum NO, 8092 Zürich, Switzerland D. Günther 1Eidgenössische Technische Hochschule, ETH Zürich, Isotope Geology and Mineral Resources, ETH Zentrum NO, 8092 Zürich, Switzerland A. Audétat 1Eidgenössische Technische Hochschule, ETH Zürich, Isotope Geology and Mineral Resources, ETH Zentrum NO, 8092 Zürich, Switzerland T. Ulrich 1Eidgenössische Technische Hochschule, ETH Zürich, Isotope Geology and Mineral Resources, ETH Zentrum NO, 8092 Zürich, Switzerland R. Frischknecht 1Eidgenössische Technische Hochschule, ETH Zürich, Isotope Geology and Mineral Resources, ETH Zentrum NO, 8092 Zürich, Switzerland Publisher: Geological Society of America First Online: 02 Jun 2017 Online ISSN: 1943-2682 Print ISSN: 0091-7613 Geological Society of America Geology (1999) 27 (8): 755–758. https://doi.org/10.1130/0091-7613(1999)027<0755:MFBMBA>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 Email Permissions Search Site Citation C. A. Heinrich, D. Günther, A. Audétat, T. Ulrich, R. Frischknecht; Metal fractionation between magmatic brine and vapor, determined by microanalysis of fluid inclusions. Geology 1999;; 27 (8): 755–758. doi: https://doi.org/10.1130/0091-7613(1999)027<0755:MFBMBA>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 The major and trace element compositions of individual fluid inclusions from a range of magmatic-hydrothermal ore deposits were analyzed by laser-ablation inductively coupled plasma-mass spectrometry, to explore the behavior of ore-forming components during fluid phase separation (“boiling”) in high-temperature saline fluid systems. Data from 13 samples showing unambiguous evidence for coeval trapping of a liquid brine and a coexisting vapor phase identify two groups of elements with drastically different geochemical behavior. Na, K, Fe, Mn, Zn, Rb, Cs, Ag, Sn, Pb, and Tl preferentially partition into the brine (probably as Cl complexes), whereas Cu, As, Au (probably as HS complexes), and B selectively partition into the vapor. Fluid phase separation is probably a major, previously underestimated process in the chemical differentiation that contributes to the extreme range of selective element enrichments in magmatic-hydrothermal systems, from deep plutons through porphyry-style and greisen deposits to epithermal mineralization and volcanic fumaroles. 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.