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A high-resolution nonmarine record of an early Danian hyperthermal event, Boltysh crater, Ukraine

2013; Geological Society of America; Volume: 41; Issue: 7 Linguagem: Inglês

10.1130/g34292.1

1943-2682

I. Gilmour, Mabs Gilmour, David W. Jolley, S. P. Kelley, David B. Kemp, Robert J. Daly, Jonathan S. Watson,

Methane Hydrates and Related Phenomena

Research Article| July 01, 2013 A high-resolution nonmarine record of an early Danian hyperthermal event, Boltysh crater, Ukraine Iain Gilmour; Iain Gilmour * 1Planetary and Space Sciences, Department of Physical Sciences, The Open University, Milton Keynes MK7 6AA, UK *E-mail: iain.gilmour@open.ac.uk. Search for other works by this author on: GSW Google Scholar Mabs Gilmour; Mabs Gilmour 1Planetary and Space Sciences, Department of Physical Sciences, The Open University, Milton Keynes MK7 6AA, UK Search for other works by this author on: GSW Google Scholar David Jolley; David Jolley 2Department of Geology and Petroleum Geology, University of Aberdeen, Meston Building, Aberdeen AB2 3UE, UK Search for other works by this author on: GSW Google Scholar Simon Kelley; Simon Kelley 1Planetary and Space Sciences, Department of Physical Sciences, The Open University, Milton Keynes MK7 6AA, UK Search for other works by this author on: GSW Google Scholar David Kemp; David Kemp 3Department of Environment, Earth and Ecosystems, The Open University, Milton Keynes MK7 6AA, UK Search for other works by this author on: GSW Google Scholar Robert Daly; Robert Daly 2Department of Geology and Petroleum Geology, University of Aberdeen, Meston Building, Aberdeen AB2 3UE, UK Search for other works by this author on: GSW Google Scholar Jonathan Watson Jonathan Watson 1Planetary and Space Sciences, Department of Physical Sciences, The Open University, Milton Keynes MK7 6AA, UK †Current address: Department of Earth Science & Engineering, Imperial College, London SW7 2AZ, UK. Search for other works by this author on: GSW Google Scholar Author and Article Information Iain Gilmour * 1Planetary and Space Sciences, Department of Physical Sciences, The Open University, Milton Keynes MK7 6AA, UK Mabs Gilmour 1Planetary and Space Sciences, Department of Physical Sciences, The Open University, Milton Keynes MK7 6AA, UK David Jolley 2Department of Geology and Petroleum Geology, University of Aberdeen, Meston Building, Aberdeen AB2 3UE, UK Simon Kelley 1Planetary and Space Sciences, Department of Physical Sciences, The Open University, Milton Keynes MK7 6AA, UK David Kemp 3Department of Environment, Earth and Ecosystems, The Open University, Milton Keynes MK7 6AA, UK Robert Daly 2Department of Geology and Petroleum Geology, University of Aberdeen, Meston Building, Aberdeen AB2 3UE, UK Jonathan Watson †Current address: Department of Earth Science & Engineering, Imperial College, London SW7 2AZ, UK. 1Planetary and Space Sciences, Department of Physical Sciences, The Open University, Milton Keynes MK7 6AA, UK *E-mail: iain.gilmour@open.ac.uk. Publisher: Geological Society of America Received: 07 Dec 2012 Revision Received: 24 Feb 2013 Accepted: 25 Feb 2013 First Online: 09 Mar 2017 Online ISSN: 1943-2682 Print ISSN: 0091-7613 © 2013 Geological Society of America Geology (2013) 41 (7): 783–786. https://doi.org/10.1130/G34292.1 Article history Received: 07 Dec 2012 Revision Received: 24 Feb 2013 Accepted: 25 Feb 2013 First Online: 09 Mar 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn Email Permissions Search Site Citation Iain Gilmour, Mabs Gilmour, David Jolley, Simon Kelley, David Kemp, Robert Daly, Jonathan Watson; A high-resolution nonmarine record of an early Danian hyperthermal event, Boltysh crater, Ukraine. Geology 2013;; 41 (7): 783–786. doi: https://doi.org/10.1130/G34292.1 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 Carbon isotope and palynological analysis of the fine-grained organic carbon–rich lacustrine sediments that filled the Cretaceous-Paleogene (K-Pg) boundary–age Boltysh impact crater (Ukraine) preserve a uniquely complete and detailed record of a negative carbon isotope excursion in an expanded section of the early Danian that we estimate lasted as long as ∼340 k.y. Palynological assemblages recovered through the excursion reflect the increasing dominance of thermophylic Normapolles species, indicating an increasingly warm and dry climate, while those recovered below and above the excursion reflect a cooler and wetter climate. The record of a transient warming event (hyperthermal) in the early Danian at Boltysh has strong similarities with the Dan-C2 hyperthermal event recorded in marine sediments in Tethys and the Atlantic Ocean, and suggests that there were profound environmental changes occurring on a global scale shortly after the K-Pg boundary. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.