Identification of magmatic and meteoric fluid sources and upward- and downward-moving infiltration fronts in a metamorphic core complex

Abstract

Research Article| January 01, 1993 Identification of magmatic and meteoric fluid sources and upward- and downward-moving infiltration fronts in a metamorphic core complex Stephen M. Wickham; Stephen M. Wickham 1Department of the Geophysical Sciences and Enrico Fermi Institute, University of Chicago, 5734 South Ellis Avenue, Chicago, Illinois 60637-1472 Search for other works by this author on: GSW Google Scholar Mark T. Peters; Mark T. Peters 1Department of the Geophysical Sciences and Enrico Fermi Institute, University of Chicago, 5734 South Ellis Avenue, Chicago, Illinois 60637-1472 Search for other works by this author on: GSW Google Scholar Henry C. Fricke; Henry C. Fricke 2Department of Geological Sciences, University of Michigan, 1006 C.C. Little Building, Ann Arbor, Michigan 48109-1063 Search for other works by this author on: GSW Google Scholar James R. O'Neil James R. O'Neil 2Department of Geological Sciences, University of Michigan, 1006 C.C. Little Building, Ann Arbor, Michigan 48109-1063 Search for other works by this author on: GSW Google Scholar Author and Article Information Stephen M. Wickham 1Department of the Geophysical Sciences and Enrico Fermi Institute, University of Chicago, 5734 South Ellis Avenue, Chicago, Illinois 60637-1472 Mark T. Peters 1Department of the Geophysical Sciences and Enrico Fermi Institute, University of Chicago, 5734 South Ellis Avenue, Chicago, Illinois 60637-1472 Henry C. Fricke 2Department of Geological Sciences, University of Michigan, 1006 C.C. Little Building, Ann Arbor, Michigan 48109-1063 James R. O'Neil 2Department of Geological Sciences, University of Michigan, 1006 C.C. Little Building, Ann Arbor, Michigan 48109-1063 Publisher: Geological Society of America First Online: 02 Jun 2017 Online ISSN: 1943-2682 Print ISSN: 0091-7613 Geological Society of America Geology (1993) 21 (1): 81–84. https://doi.org/10.1130/0091-7613(1993)021<0081:IOMAMF>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 Stephen M. Wickham, Mark T. Peters, Henry C. Fricke, James R. O'Neil; Identification of magmatic and meteoric fluid sources and upward- and downward-moving infiltration fronts in a metamorphic core complex. Geology 1993;; 21 (1): 81–84. doi: https://doi.org/10.1130/0091-7613(1993)021<0081:IOMAMF>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 A combined study of O, H, and C isotope variations in the Ruby-East Humboldt Range metamorphic core complex has identified infiltration of aqueous fluids originating from both the surface of the earth, and from deep crustal or mantle levels. At deep structural levels, metamorphic fluids flowed upward and were rich in water, had mantle-like isotopic compositions, and were probably derived from crystallizing magmas. Conversely, at higher structural levels, a major meteoric-hydrothermal system developed in response to rapid uplift, causing meteoric fluids to penetrate downward into plastically deforming metamorphic rocks at depths of 10 to 15 km below the surface. Infiltration fronts associated with both processes have been recognized, allowing us to determine fluid fluxes and flow geometries at mid-crustal levels. 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.