Holocene climatic instability: A prominent, widespread event 8200 yr ago

Research Article| June 01, 1997 Holocene climatic instability: A prominent, widespread event 8200 yr ago R. B. Alley; R. B. Alley 1Earth System Science Center and Department of Geosciences, Pennsylvania State University, University Park, Pennsylvania 16802 Search for other works by this author on: GSW Google Scholar P. A. Mayewski; P. A. Mayewski 2Climate Change Research Center, Institute for the Study of Earth, Oceans and Space, University of New Hampshire, Durham, New Hampshire 03824 Search for other works by this author on: GSW Google Scholar T. Sowers; T. Sowers 1Earth System Science Center and Department of Geosciences, Pennsylvania State University, University Park, Pennsylvania 16802 Search for other works by this author on: GSW Google Scholar M. Stuiver; M. Stuiver 3Department of Geological Sciences and Quaternary Research Center, University of Washington, Seattle, Washington 98195 Search for other works by this author on: GSW Google Scholar K. C. Taylor; K. C. Taylor 4Desert Research Institute, University of Nevada System, Reno, Nevada 89506 Search for other works by this author on: GSW Google Scholar P. U. Clark P. U. Clark 5Department of Geosciences, Oregon State University, Corvallis, Oregon 97331 Search for other works by this author on: GSW Google Scholar Author and Article Information R. B. Alley 1Earth System Science Center and Department of Geosciences, Pennsylvania State University, University Park, Pennsylvania 16802 P. A. Mayewski 2Climate Change Research Center, Institute for the Study of Earth, Oceans and Space, University of New Hampshire, Durham, New Hampshire 03824 T. Sowers 1Earth System Science Center and Department of Geosciences, Pennsylvania State University, University Park, Pennsylvania 16802 M. Stuiver 3Department of Geological Sciences and Quaternary Research Center, University of Washington, Seattle, Washington 98195 K. C. Taylor 4Desert Research Institute, University of Nevada System, Reno, Nevada 89506 P. U. Clark 5Department of Geosciences, Oregon State University, Corvallis, Oregon 97331 Publisher: Geological Society of America First Online: 02 Jun 2017 Online ISSN: 1943-2682 Print ISSN: 0091-7613 Geological Society of America Geology (1997) 25 (6): 483–486. https://doi.org/10.1130/0091-7613(1997)0252.3.CO;2 Article history First Online: 02 Jun 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn Email Permissions Search Site Citation R. B. Alley, P. A. Mayewski, T. Sowers, M. Stuiver, K. C. Taylor, P. U. Clark; Holocene climatic instability: A prominent, widespread event 8200 yr ago. Geology 1997;; 25 (6): 483–486. doi: https://doi.org/10.1130/0091-7613(1997)0252.3.CO;2 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 most prominent Holocene climatic event in Greenland ice-core proxies, with approximately half the amplitude of the Younger Dryas, occurred ∼8000 to 8400 yr ago. This Holocene event affected regions well beyond the North Atlantic basin, as shown by synchronous increases in windblown chemical indicators together with a significant decrease in methane. Widespread proxy records from the tropics to the north polar regions show a short-lived cool, dry, or windy event of similar age. The spatial pattern of terrestrial and marine changes is similar to that of the Younger Dryas event, suggesting a role for North Atlantic thermohaline circulation. Possible forcings identified thus far for this Holocene event are small, consistent with recent model results indicating high sensitivity and strong linkages in the climatic system. This content is PDF only. Please click on the PDF icon to access. First Page Preview Close Modal You do not have access to this content, please speak to your institutional administrator if you feel you should have access.