The Relationship between Fluids in Some Fresh Alpine-Type Ultramafics and Possible Modern Serpentinization, Western United States

Research Article| October 01, 1969 The Relationship between Fluids in Some Fresh Alpine-Type Ultramafics and Possible Modern Serpentinization, Western United States IVAN BARNES; IVAN BARNES U.S. Geological Survey, Menlo Park, California Search for other works by this author on: GSW Google Scholar JAMES R O'NEIL JAMES R O'NEIL U.S. Geological Survey, Menlo Park, California Search for other works by this author on: GSW Google Scholar Author and Article Information IVAN BARNES U.S. Geological Survey, Menlo Park, California JAMES R O'NEIL U.S. Geological Survey, Menlo Park, California Publisher: Geological Society of America Received: 11 Nov 1968 Revision Received: 17 Mar 1969 First Online: 02 Mar 2017 Online ISSN: 1943-2674 Print ISSN: 0016-7606 Copyright © 1969, The Geological Society of America, Inc. Copyright is not claimed on any material prepared by U.S. government employees within the scope of their employment. GSA Bulletin (1969) 80 (10): 1947–1960. https://doi.org/10.1130/0016-7606(1969)80[1947:TRBFIS]2.0.CO;2 Article history Received: 11 Nov 1968 Revision Received: 17 Mar 1969 First Online: 02 Mar 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn Email Tools Icon Tools Get Permissions Search Site Citation IVAN BARNES, JAMES R O'NEIL; The Relationship between Fluids in Some Fresh Alpine-Type Ultramafics and Possible Modern Serpentinization, Western United States. GSA Bulletin 1969;; 80 (10): 1947–1960. doi: https://doi.org/10.1130/0016-7606(1969)80[1947:TRBFIS]2.0.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 SocietyGSA Bulletin Search Advanced Search Abstract Calcium hydroxide waters issue from four partly serpentinized Alpine-type ultramafic bodies in the western United States. The occurrence of calcium-hydroxide-type water is restricted to fresh Alpine-type ultramafic rocks. The calcium hydroxide waters are unsaturated with Mg end-member olivine and pyroxene but supersaturated with Mg end-member brucite and serpentine and thus have chemical potentials to cause Serpentinization. The calcium hydroxide waters are isotopically similar to the common magnesium bicarbonate meteoric waters peculiar to ultramafic rocks and serpentinites. Some Serpentinization is apparently a near-surface phenomenon occurring at present. The Serpentinization takes place at nearly constant composition, except for loss of CaO. 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.