Catastrophic meltwater discharge down the Hudson Valley: A potential trigger for the Intra-Allerød cold period

Abstract

Research Article| February 01, 2005 Catastrophic meltwater discharge down the Hudson Valley: A potential trigger for the Intra-Allerød cold period Jeffrey P. Donnelly; Jeffrey P. Donnelly 1Woods Hole Oceanographic Institution, Woods Hole, Massachusetts 02543, USA Search for other works by this author on: GSW Google Scholar Neal W. Driscoll; Neal W. Driscoll 2Scripps Institution of Oceanography, La Jolla, California 92093, USA Search for other works by this author on: GSW Google Scholar Elazar Uchupi; Elazar Uchupi 3Woods Hole Oceanographic Institution, Woods Hole, Massachusetts 02543, USA Search for other works by this author on: GSW Google Scholar Lloyd D. Keigwin; Lloyd D. Keigwin 3Woods Hole Oceanographic Institution, Woods Hole, Massachusetts 02543, USA Search for other works by this author on: GSW Google Scholar William C. Schwab; William C. Schwab 4U.S. Geological Survey, Woods Hole, Massachusetts 02543, USA Search for other works by this author on: GSW Google Scholar E. Robert Thieler; E. Robert Thieler 4U.S. Geological Survey, Woods Hole, Massachusetts 02543, USA Search for other works by this author on: GSW Google Scholar Stephen A. Swift Stephen A. Swift 5Woods Hole Oceanographic Institution, Woods Hole, Massachusetts 02543, USA Search for other works by this author on: GSW Google Scholar Author and Article Information Jeffrey P. Donnelly 1Woods Hole Oceanographic Institution, Woods Hole, Massachusetts 02543, USA Neal W. Driscoll 2Scripps Institution of Oceanography, La Jolla, California 92093, USA Elazar Uchupi 3Woods Hole Oceanographic Institution, Woods Hole, Massachusetts 02543, USA Lloyd D. Keigwin 3Woods Hole Oceanographic Institution, Woods Hole, Massachusetts 02543, USA William C. Schwab 4U.S. Geological Survey, Woods Hole, Massachusetts 02543, USA E. Robert Thieler 4U.S. Geological Survey, Woods Hole, Massachusetts 02543, USA Stephen A. Swift 5Woods Hole Oceanographic Institution, Woods Hole, Massachusetts 02543, USA Publisher: Geological Society of America Received: 31 Jul 2004 Revision Received: 12 Oct 2004 Accepted: 12 Oct 2004 First Online: 09 Mar 2017 Online ISSN: 1943-2682 Print ISSN: 0091-7613 Geological Society of America Geology (2005) 33 (2): 89–92. https://doi.org/10.1130/G21043.1 Article history Received: 31 Jul 2004 Revision Received: 12 Oct 2004 Accepted: 12 Oct 2004 First Online: 09 Mar 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn Email Permissions Search Site Citation Jeffrey P. Donnelly, Neal W. Driscoll, Elazar Uchupi, Lloyd D. Keigwin, William C. Schwab, E. Robert Thieler, Stephen A. Swift; Catastrophic meltwater discharge down the Hudson Valley: A potential trigger for the Intra-Allerød cold period. Geology 2005;; 33 (2): 89–92. doi: https://doi.org/10.1130/G21043.1 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 Glacial freshwater discharge to the Atlantic Ocean during deglaciation may have inhibited oceanic thermohaline circulation, and is often postulated to have driven climatic fluctuations. Yet attributing meltwater-discharge events to particular climate oscillations is problematic, because the location, timing, and amount of meltwater discharge are often poorly constrained. We present evidence from the Hudson Valley and the northeastern U.S. continental margin that establishes the timing of the catastrophic draining of Glacial Lake Iroquois, which breached the moraine dam at the Narrows in New York City, eroded glacial lake sediments in the Hudson Valley, and deposited large sediment lobes on the New York and New Jersey continental shelf ca. 13,350 yr B.P. Excess 14C in Cariaco Basin sediments indicates a slowing in thermohaline circulation and heat transport to the North Atlantic at that time, and both marine and terrestrial paleoclimate proxy records around the North Atlantic show a short-lived (<400 yr) cold event (Intra-Allerød cold period) that began ca. 13,350 yr B.P. The meltwater discharge out the Hudson Valley may have played an important role in triggering the Intra-Allerød cold period by diminishing thermohaline circulation. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.