Middle Eocene regional climate instability: Evidence from the western North Atlantic

Research Article| November 01, 2002 Middle Eocene regional climate instability: Evidence from the western North Atlantic Bridget S. Wade; Bridget S. Wade 1Department of Geology and Geophysics, University of Edinburgh, Grant Institute, West Mains Road, Edinburgh EH9 3JW, UK Search for other works by this author on: GSW Google Scholar Dick Kroon Dick Kroon 1Department of Geology and Geophysics, University of Edinburgh, Grant Institute, West Mains Road, Edinburgh EH9 3JW, UK Search for other works by this author on: GSW Google Scholar Author and Article Information Bridget S. Wade 1Department of Geology and Geophysics, University of Edinburgh, Grant Institute, West Mains Road, Edinburgh EH9 3JW, UK Dick Kroon 1Department of Geology and Geophysics, University of Edinburgh, Grant Institute, West Mains Road, Edinburgh EH9 3JW, UK Publisher: Geological Society of America Received: 05 Apr 2002 Revision Received: 26 Jul 2002 Accepted: 29 Jul 2002 First Online: 02 Jun 2017 Online ISSN: 1943-2682 Print ISSN: 0091-7613 Geological Society of America Geology (2002) 30 (11): 1011–1014. https://doi.org/10.1130/0091-7613(2002)030<1011:MERCIE>2.0.CO;2 Article history Received: 05 Apr 2002 Revision Received: 26 Jul 2002 Accepted: 29 Jul 2002 First Online: 02 Jun 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn MailTo Tools Icon Tools Get Permissions Search Site Citation Bridget S. Wade, Dick Kroon; Middle Eocene regional climate instability: Evidence from the western North Atlantic. Geology 2002;; 30 (11): 1011–1014. doi: https://doi.org/10.1130/0091-7613(2002)030<1011:MERCIE>2.0.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 High-resolution (∼3 k.y.) δ18O records from middle Eocene mixed-layer dwelling planktonic foraminifera from the western North Atlantic show pronounced (>1‰) variability. The magnitude of change is greater than that seen in open-ocean Pleistocene records, but could not have been caused by ice-volume and/or sea-level fluctuations. Instead, the oxygen isotope shifts resulted primarily from large oscillations in sea-surface temperatures and indicate that the regional paleoceanography of the middle Eocene western North Atlantic was not consistently warm or stable. The large shifts in sea-surface temperatures could reflect variations in the position of the Gulf Stream relative to Blake Nose or variations in upwelling intensity. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.