Detrital mineral chronology of the Uinta Mountain Group: Implications for the Grenville flood in southwestern Laurentia

Abstract

Research Article| May 01, 2007 Detrital mineral chronology of the Uinta Mountain Group: Implications for the Grenville flood in southwestern Laurentia Paul A. Mueller; Paul A. Mueller 1Department of Geological Sciences, University of Florida, Gainesville, Florida 32611, USA Search for other works by this author on: GSW Google Scholar David A. Foster; David A. Foster 1Department of Geological Sciences, University of Florida, Gainesville, Florida 32611, USA Search for other works by this author on: GSW Google Scholar David W. Mogk; David W. Mogk 2Department of Earth Science, Montana State University, Bozeman, Montana 59717, USA Search for other works by this author on: GSW Google Scholar Joseph L. Wooden; Joseph L. Wooden 3U.S. Geological Survey, Menlo Park, California 94050, USA Search for other works by this author on: GSW Google Scholar George D. Kamenov; George D. Kamenov 4Department of Geological Sciences, University of Florida, Gainesville, Florida 32611, USA Search for other works by this author on: GSW Google Scholar James J. Vogl James J. Vogl 4Department of Geological Sciences, University of Florida, Gainesville, Florida 32611, USA Search for other works by this author on: GSW Google Scholar Author and Article Information Paul A. Mueller 1Department of Geological Sciences, University of Florida, Gainesville, Florida 32611, USA David A. Foster 1Department of Geological Sciences, University of Florida, Gainesville, Florida 32611, USA David W. Mogk 2Department of Earth Science, Montana State University, Bozeman, Montana 59717, USA Joseph L. Wooden 3U.S. Geological Survey, Menlo Park, California 94050, USA George D. Kamenov 4Department of Geological Sciences, University of Florida, Gainesville, Florida 32611, USA James J. Vogl 4Department of Geological Sciences, University of Florida, Gainesville, Florida 32611, USA Publisher: Geological Society of America Received: 29 Jun 2006 Revision Received: 14 Dec 2006 Accepted: 28 Dec 2006 First Online: 09 Mar 2017 Online ISSN: 1943-2682 Print ISSN: 0091-7613 Geological Society of America Geology (2007) 35 (5): 431–434. https://doi.org/10.1130/G23148A.1 Article history Received: 29 Jun 2006 Revision Received: 14 Dec 2006 Accepted: 28 Dec 2006 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 Paul A. Mueller, David A. Foster, David W. Mogk, Joseph L. Wooden, George D. Kamenov, James J. Vogl; Detrital mineral chronology of the Uinta Mountain Group: Implications for the Grenville flood in southwestern Laurentia. Geology 2007;; 35 (5): 431–434. doi: https://doi.org/10.1130/G23148A.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 Numerous studies have shown that large quantities of Grenville-age detritus dominate Neoproterozoic to Cambrian arenites in southwest Laurentia (southwestern United States). U-Pb ages and Hf isotopic compositions of zircons and 40Ar/39Ar ages of white mica from clastic sedimentary rocks of the Neoproterozoic Uinta Mountain Group also indicate significant Mesoproterozoic detritus mixed with a variably abundant Archean component. Zircons with ages representative of the Paleoproterozoic basement in the eastern Uinta Mountains or the younger Paleoproterozoic rocks of the adjacent Yavapai-Mazatzal terranes were not observed. A limited range of initial ϵHf (∼90% between –3 and +3) for Mesoproterozoic zircons suggests derivation from a source region (or regions) characterized by mixing between juvenile and reworked older crust during Grenville orogenesis. The enriched Grenville-age basement proposed to underlie much of southeastern North America may be this source based on similarities of Hf isotopic data from Mesoproterozoic zircons in Mississippi River sand and available paleocurrent data. If so, then disruption of this supply in the Cambrian may be related to Iapetan rifting and, perhaps, the separation of the Precordillera terrane from Laurentia. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.