Passive margin uplift around the North Atlantic region and its role in Northern Hemisphere late Cenozoic glaciation

Research Article| February 01, 1996 Passive margin uplift around the North Atlantic region and its role in Northern Hemisphere late Cenozoic glaciation Nicholas Eyles Nicholas Eyles 1Glaciated Basin Research Group, Scarborough Campus, University of Toronto, Scarborough, Ontario M1C 1A4, Canada Search for other works by this author on: GSW Google Scholar Author and Article Information Nicholas Eyles 1Glaciated Basin Research Group, Scarborough Campus, University of Toronto, Scarborough, Ontario M1C 1A4, Canada Publisher: Geological Society of America First Online: 02 Jun 2017 Online ISSN: 1943-2682 Print ISSN: 0091-7613 Geological Society of America Geology (1996) 24 (2): 103–106. https://doi.org/10.1130/0091-7613(1996)024<0103:PMUATN>2.3.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 Nicholas Eyles; Passive margin uplift around the North Atlantic region and its role in Northern Hemisphere late Cenozoic glaciation. Geology 1996;; 24 (2): 103–106. doi: https://doi.org/10.1130/0091-7613(1996)024<0103:PMUATN>2.3.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 Tectonic-climatic models of late Cenozoic global cooling emphasize the importance of middle latitude uplifts (e.g., Tibetan Plateau and the American west) but ignore widespread tectonic events on the margins of the North Atlantic Ocean. Pleistocene glaciations, after 2.5 Ma, are characterized by circum–North Atlantic continental ice sheets that formed by the coalescence of perennial snow fields on extensive plateau surfaces in eastern Canada, northwest Britain, and Scandinavia. Plateaus record Cenozoic uplift of peneplains in response to semisynchronous magmatic underplating and thermal buoyancy of rifted continental margins. High-standing plateaus are very sensitive to small reductions in summer temperature. As late Cenozoic climate cooling proceeded, driven by uplift in regions external to the North Atlantic region, elevated plateaus became sites for extensive snow fields and ultimately ice sheets. Circum-Atlantic uplift took place in the key latitudinal belt that is most sensitive to orbitally forced changes in solar irradiation; this, together with albedo effects from large snow fields, could have amplified the relatively weak Milankovitch signal. 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.