Abstract
Research Article| October 01, 1996 Cenozoic postrift domal uplift of North Atlantic margins: An asthenospheric diapirism model Max Rohrman; Max Rohrman 1Faculty of Earth Sciences, Vrije Universiteit, De Boelelaan 1085, 1081 HV Amsterdam, The Netherlands Search for other works by this author on: GSW Google Scholar Peter van der Beek Peter van der Beek 1Faculty of Earth Sciences, Vrije Universiteit, De Boelelaan 1085, 1081 HV Amsterdam, The Netherlands Search for other works by this author on: GSW Google Scholar Author and Article Information Max Rohrman 1Faculty of Earth Sciences, Vrije Universiteit, De Boelelaan 1085, 1081 HV Amsterdam, The Netherlands Peter van der Beek 1Faculty of Earth Sciences, Vrije Universiteit, De Boelelaan 1085, 1081 HV Amsterdam, The Netherlands 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 (10): 901–904. https://doi.org/10.1130/0091-7613(1996)024<0901:CPDUON>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 MailTo Tools Icon Tools Get Permissions Search Site Citation Max Rohrman, Peter van der Beek; Cenozoic postrift domal uplift of North Atlantic margins: An asthenospheric diapirism model. Geology 1996;; 24 (10): 901–904. doi: https://doi.org/10.1130/0091-7613(1996)024<0901:CPDUON>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 Postrift domal uplifts are a distinct feature of the northern North Atlantic rifted margins. Uplifted regions (southern Norway, Finnmark, Svalbard, northern United Kingdom) occur with a typical spacing of ∼ 900 km. The amount of domal uplift is substantial (1–2 km); thermochronological, geomorphological, and seismic stratigraphic data suggest a coincident Neogene onset of uplift, postdating North Atlantic breakup and predating onset of glaciation. The Norwegian domes are characterized by strongly negative gravity anomalies and reduced mantle P-wave and S-wave velocities. Previous models for uplift around the North Atlantic (e.g., glacial erosion, intraplate stresses, secondary convection) fail to explain the above characteristics. We present an asthenospheric diapir model based on a Rayleigh-Taylor instability, wherein a hot “Icelandic” asthenosphere layer meets cold cratonic lithosphere. The generated asthenospheric diapirs and associated partial melting offer a viable explanation for updoming. Application of this model to the south Norwegian dome succesfully explains most of the currently available data. 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.
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