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High-precision U-Pb zircon age from the Triassic of Italy: Implications for the Triassic time scale and the Carnian origin of calcareous nannoplankton and dinosaurs

2006; Geological Society of America; Volume: 34; Issue: 12 Linguagem: Inglês

10.1130/g22967a.1

1943-2682

Stefano Furin, Nereo Preto, Manuel Rigo, Guido Roghi, Piero Gianolla, James L. Crowley, Samuel A. Bowring,

Paleontology and Evolutionary Biology

Research Article| December 01, 2006 High-precision U-Pb zircon age from the Triassic of Italy: Implications for the Triassic time scale and the Carnian origin of calcareous nannoplankton and dinosaurs Stefano Furin; Stefano Furin 1Dipartimento di Scienze della Terra, Università degli Studi di Ferrara, Via G. Saragat 1, 44100 Ferrara, Italy Search for other works by this author on: GSW Google Scholar Nereo Preto; Nereo Preto 2Dipartimento di Geologia, Paleontologia e Geofisica, Università degli Studi di Padova, Via Giotto 1, 35137 Padova, Italy Search for other works by this author on: GSW Google Scholar Manuel Rigo; Manuel Rigo 2Dipartimento di Geologia, Paleontologia e Geofisica, Università degli Studi di Padova, Via Giotto 1, 35137 Padova, Italy Search for other works by this author on: GSW Google Scholar Guido Roghi; Guido Roghi 3Institute of Geosciences and Georesources, C.N.R., Corso Garibaldi 37, 35137 Padova, Italy Search for other works by this author on: GSW Google Scholar Piero Gianolla; Piero Gianolla 4Dipartimento di Scienze della Terra, Università degli Studi di Ferrara, Via G. Saragat 1, 44100 Ferrara, Italy Search for other works by this author on: GSW Google Scholar James L. Crowley; James L. Crowley 5Department of Earth, Atmospheric, and Planetary Sciences, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, USA Search for other works by this author on: GSW Google Scholar Samuel A. Bowring Samuel A. Bowring 5Department of Earth, Atmospheric, and Planetary Sciences, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, USA Search for other works by this author on: GSW Google Scholar Author and Article Information Stefano Furin 1Dipartimento di Scienze della Terra, Università degli Studi di Ferrara, Via G. Saragat 1, 44100 Ferrara, Italy Nereo Preto 2Dipartimento di Geologia, Paleontologia e Geofisica, Università degli Studi di Padova, Via Giotto 1, 35137 Padova, Italy Manuel Rigo 2Dipartimento di Geologia, Paleontologia e Geofisica, Università degli Studi di Padova, Via Giotto 1, 35137 Padova, Italy Guido Roghi 3Institute of Geosciences and Georesources, C.N.R., Corso Garibaldi 37, 35137 Padova, Italy Piero Gianolla 4Dipartimento di Scienze della Terra, Università degli Studi di Ferrara, Via G. Saragat 1, 44100 Ferrara, Italy James L. Crowley 5Department of Earth, Atmospheric, and Planetary Sciences, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, USA Samuel A. Bowring 5Department of Earth, Atmospheric, and Planetary Sciences, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, USA Publisher: Geological Society of America Received: 15 May 2006 Revision Received: 20 Jun 2006 Accepted: 22 Jun 2006 First Online: 09 Mar 2017 Online ISSN: 1943-2682 Print ISSN: 0091-7613 The Geological Society of America, Inc. Geology (2006) 34 (12): 1009–1012. https://doi.org/10.1130/G22967A.1 Article history Received: 15 May 2006 Revision Received: 20 Jun 2006 Accepted: 22 Jun 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 Stefano Furin, Nereo Preto, Manuel Rigo, Guido Roghi, Piero Gianolla, James L. Crowley, Samuel A. Bowring; High-precision U-Pb zircon age from the Triassic of Italy: Implications for the Triassic time scale and the Carnian origin of calcareous nannoplankton and dinosaurs. Geology 2006;; 34 (12): 1009–1012. doi: https://doi.org/10.1130/G22967A.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 The Triassic time scale is poorly constrained due to a paucity of high-precision radiometric ages. We present a 206Pb/238U age of 230.91 ± 0.33 Ma (error includes all known sources) for zircon from an ash bed in the upper Carnian (Upper Triassic) of southern Italy that requires a major revision of the Triassic time scale. For example, the Norian stage is lengthened to more than 20 m.y. The section containing the ash bed is correlated with other Tethyan sections and, indirectly, with the Newark astronomical polarity time scale (APTS). The dating provides also a minimum age for some important climatic and biotic events that occurred during the Carnian. We note a coincidence between these events and the eruption of the large igneous province of Wrangellia, but the possible link between volcanism and climatic and biotic events requires further scrutiny. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.