Detrital zircon U-Pb ages provide provenance and chronostratigraphic information from Eocene synorogenic deposits in northwestern Argentina

Research Article| April 01, 2007 Detrital zircon U-Pb ages provide provenance and chronostratigraphic information from Eocene synorogenic deposits in northwestern Argentina P.G. DeCelles; P.G. DeCelles 1Department of Geosciences, University of Arizona, Tucson, Arizona 85721, USA Search for other works by this author on: GSW Google Scholar B. Carrapa; B. Carrapa 2Universität Potsdam, Institut für Geowissenschaften, 14476 Golm, Germany Search for other works by this author on: GSW Google Scholar G.E. Gehrels G.E. Gehrels 3Department of Geosciences, University of Arizona, Tucson, Arizona 85721, USA Search for other works by this author on: GSW Google Scholar Author and Article Information P.G. DeCelles 1Department of Geosciences, University of Arizona, Tucson, Arizona 85721, USA B. Carrapa 2Universität Potsdam, Institut für Geowissenschaften, 14476 Golm, Germany G.E. Gehrels 3Department of Geosciences, University of Arizona, Tucson, Arizona 85721, USA Publisher: Geological Society of America Received: 28 Aug 2006 Revision Received: 01 Dec 2006 Accepted: 06 Dec 2006 First Online: 09 Mar 2017 Online ISSN: 1943-2682 Print ISSN: 0091-7613 Geological Society of America Geology (2007) 35 (4): 323–326. https://doi.org/10.1130/G23322A.1 Article history Received: 28 Aug 2006 Revision Received: 01 Dec 2006 Accepted: 06 Dec 2006 First Online: 09 Mar 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn Email Permissions Search Site Citation P.G. DeCelles, B. Carrapa, G.E. Gehrels; Detrital zircon U-Pb ages provide provenance and chronostratigraphic information from Eocene synorogenic deposits in northwestern Argentina. Geology 2007;; 35 (4): 323–326. doi: https://doi.org/10.1130/G23322A.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 Paleogene clastic sedimentary rocks in the Puna plateau of northwestern Argentina contain valuable information about the timing and location of early mountain building in the central Andes. Because these rocks generally lack tuffaceous facies, only paleontological ages have been available. We present U-Pb ages from detrital zircons in the conglomeratic Eocene Geste Formation of the central Puna plateau. The zircon ages indicate that the Geste Formation was derived from nearby high-relief ranges composed of Ordovician metasedimentary rocks. A small population of ca. 37–35 Ma grains also confirms the late Eocene stratigraphic age of the Geste Formation, and suggests that U-Pb detrital zircon ages may provide a new tool for determining depositional ages and provenance of widespread Paleogene deposits in the central Andes. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.