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North Atlantic Deep Water and climate variability during the Younger Dryas cold period

2011; Geological Society of America; Volume: 39; Issue: 2 Linguagem: Inglês

10.1130/g31376.1

1943-2682

Aurora C. Elmore, James D. Wright,

Coastal wetland ecosystem dynamics

Research Article| February 01, 2011 North Atlantic Deep Water and climate variability during the Younger Dryas cold period Aurora C. Elmore; Aurora C. Elmore * Department of Earth and Planetary Sciences, Rutgers University, 610 Taylor Road, Piscataway, New Jersey 08854, USA *Current address: Marine Science Center, University of New England, 11 Hills Beach Road, Biddeford, Maine 04005, USA; E-mail: aelmore@une.edu. Search for other works by this author on: GSW Google Scholar James D. Wright James D. Wright Department of Earth and Planetary Sciences, Rutgers University, 610 Taylor Road, Piscataway, New Jersey 08854, USA Search for other works by this author on: GSW Google Scholar Author and Article Information Aurora C. Elmore * Department of Earth and Planetary Sciences, Rutgers University, 610 Taylor Road, Piscataway, New Jersey 08854, USA James D. Wright Department of Earth and Planetary Sciences, Rutgers University, 610 Taylor Road, Piscataway, New Jersey 08854, USA *Current address: Marine Science Center, University of New England, 11 Hills Beach Road, Biddeford, Maine 04005, USA; E-mail: aelmore@une.edu. Publisher: Geological Society of America Received: 10 May 2010 Revision Received: 02 Sep 2010 Accepted: 05 Sep 2010 First Online: 09 Mar 2017 Online ISSN: 1943-2682 Print ISSN: 0091-7613 © 2011 Geological Society of America Geology (2011) 39 (2): 107–110. https://doi.org/10.1130/G31376.1 Article history Received: 10 May 2010 Revision Received: 02 Sep 2010 Accepted: 05 Sep 2010 First Online: 09 Mar 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn Email Permissions Search Site Citation Aurora C. Elmore, James D. Wright; North Atlantic Deep Water and climate variability during the Younger Dryas cold period. Geology 2011;; 39 (2): 107–110. doi: https://doi.org/10.1130/G31376.1 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 Younger Dryas, the last large millennial-scale climate oscillation (12.9–11.6 ka), has been widely attributed to a massive meltwater discharge event that disrupted ocean circulation and plunged the circum–North Atlantic back into a near-glacial state. Low-resolution deep-water reconstructions indicate lower North Atlantic Deep Water (NADW) production during the Younger Dryas, though the Δ14C record requires some deep-water production. Herein, we reconstruct deep-water mass variations using a southern Gardar Drift sediment core with an expanded Younger Dryas section. We show that southern-sourced water invaded the deep North Atlantic to start the Younger Dryas, but was replaced by NADW within 500 yr. Southern-sourced waters briefly reappeared at the end of the Younger Dryas. These deep-water reorganizations to start and end the Younger Dryas suggest that increased meltwater fluxes were limited temporally and focused on regions where deep-water convection occurred during the deglaciation. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.