Title: Tethyan magnetostratigraphy from Pizzo Mondello (Sicily) and correlation to the Late Triassic Newark astrochronological polarity time scale
Abstract: Research Article| September 01, 2004 Tethyan magnetostratigraphy from Pizzo Mondello (Sicily) and correlation to the Late Triassic Newark astrochronological polarity time scale Giovanni Muttoni; Giovanni Muttoni 1Department of Earth Sciences, University of Milan, Via Mangiagalli 34, I-20133 Milan, Italy Search for other works by this author on: GSW Google Scholar Dennis V. Kent; Dennis V. Kent 2Lamont-Doherty Earth Observatory, Palisades, New York 10964, USA and Department of Geological Sciences, Rutgers University, Piscataway, New Jersey 08854, USA Search for other works by this author on: GSW Google Scholar Paul E. Olsen; Paul E. Olsen 3Lamont-Doherty Earth Observatory, Palisades, New York 10964, USA Search for other works by this author on: GSW Google Scholar Piero Di Stefano; Piero Di Stefano 4Department of Geology and Geodesy, University of Palermo, Corso Tukory 131, I-90134 Palermo, Italy Search for other works by this author on: GSW Google Scholar William Lowrie; William Lowrie 5Departement Erdwissenschaften, ETH-Zentrum, CH-8092 Zürich, Switzerland Search for other works by this author on: GSW Google Scholar Stefano M. Bernasconi; Stefano M. Bernasconi 5Departement Erdwissenschaften, ETH-Zentrum, CH-8092 Zürich, Switzerland Search for other works by this author on: GSW Google Scholar Fátima Martín Hernández Fátima Martín Hernández 5Departement Erdwissenschaften, ETH-Zentrum, CH-8092 Zürich, Switzerland Search for other works by this author on: GSW Google Scholar GSA Bulletin (2004) 116 (9-10): 1043–1058. https://doi.org/10.1130/B25326.1 Article history received: 03 Feb 2003 rev-recd: 03 Nov 2003 accepted: 18 Nov 2003 first online: 02 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 Giovanni Muttoni, Dennis V. Kent, Paul E. Olsen, Piero Di Stefano, William Lowrie, Stefano M. Bernasconi, Fátima Martín Hernández; Tethyan magnetostratigraphy from Pizzo Mondello (Sicily) and correlation to the Late Triassic Newark astrochronological polarity time scale. GSA Bulletin 2004;; 116 (9-10): 1043–1058. doi: https://doi.org/10.1130/B25326.1 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 SocietyGSA Bulletin Search Advanced Search Abstract We present the magnetostratigraphy and stable isotope stratigraphy from an expanded (∼430-m-thick) Upper Triassic marine limestone section at Pizzo Mondello, Sicily, and review published biostratigraphic information that can be used to define the location of the conodont Carnian-Norian and Norian-Rhaetian boundaries in this section. Pizzo Mondello offers good potential for magneto-stratigraphic correlation of marine biostratigraphic and chemostratigraphic data with the continental Newark astrochronological polarity time scale (APTS) for development of an integrated Late Triassic time scale. The relatively stable average values of δ18O centered on 0‰ are a strong indication that the Cherty Limestone at Pizzo Mondello suffered very little diagenetic overprinting. The conodont Carnian-Norian boundary is located 12.5 m above a positive shift of δ13C. A statistical approach was applied to evaluate various Pizzo Mondello to Newark magnetostratigraphic correlations. Two correlation options have the highest correlation coefficients. In option #1, the base of Pizzo Mondello correlates with the middle part of the Newark APTS, whereas in option #2, the base of Pizzo Mondello starts toward the early part of the Newark APTS. We prefer option #2 in which the Carnian-Norian boundary based on conodonts, as well as its closely associated positive δ13C shift, correspond to Newark magnetozone E7 at ca. 228–227 Ma (adopting Newark astrochronology), implying a long Norian with a duration of ∼20 m.y., and a Rhaetian of ∼6 m.y. duration. These ages are in fact not inconsistent with the few high-quality radiometric dates that are available for Late Triassic time scale calibration. Based on its good exposure, accessibility, stratigraphic thickness and continuity, and multiple chronostratigraphic correlation possibilities, we propose Pizzo Mondello as global stratigraphic section and point for the base of the Norian. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.