Active normal fault control on landscape and rock-slope failure in northern Norway

Research Article| February 01, 2009 Active normal fault control on landscape and rock-slope failure in northern Norway P.T. Osmundsen; P.T. Osmundsen 1Geological Survey of Norway, 7491 Trondheim, Norway Search for other works by this author on: GSW Google Scholar I. Henderson; I. Henderson 1Geological Survey of Norway, 7491 Trondheim, Norway Search for other works by this author on: GSW Google Scholar T.R. Lauknes; T.R. Lauknes 2Norut, Forskningsparken, 9294 Tromsø, Norway Search for other works by this author on: GSW Google Scholar Y. Larsen; Y. Larsen 2Norut, Forskningsparken, 9294 Tromsø, Norway Search for other works by this author on: GSW Google Scholar T.F. Redfield; T.F. Redfield 1Geological Survey of Norway, 7491 Trondheim, Norway Search for other works by this author on: GSW Google Scholar J. Dehls J. Dehls 1Geological Survey of Norway, 7491 Trondheim, Norway Search for other works by this author on: GSW Google Scholar Geology (2009) 37 (2): 135–138. https://doi.org/10.1130/G25208A.1 Article history received: 28 May 2008 rev-recd: 19 Sep 2008 accepted: 09 Oct 2008 first online: 12 Oct 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn MailTo Tools Icon Tools Get Permissions Search Site Citation P.T. Osmundsen, I. Henderson, T.R. Lauknes, Y. Larsen, T.F. Redfield, J. Dehls; Active normal fault control on landscape and rock-slope failure in northern Norway. Geology 2009;; 37 (2): 135–138. doi: https://doi.org/10.1130/G25208A.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 Structural, geomorphic, and interferometric synthetic aperture radar (InSAR) surface displacement data show that uplift of the northernmost onshore Scandinavian passive margin is associated with active normal faulting and anomalous clusters of landslides. Regional-scale normal faults separate alpine footwall ranges with impressive range-front scarps from more gentle hanging-wall topography. In the Lyngen region, rockslides, sackung features (i.e., deep-seated slope gravitational deformation), and active faults cluster inside an ~1000 km2 area of hanging-wall subsidence parallel to an ~30-km-long, faceted range-front scarp. From postglacial to recent time, rockslides have been released along the main range front and other propagating scarps, both in the footwall range and in structurally controlled, glacially oversteepened valleys of the hanging wall. The active rockslides, moving at rates of >10 mm/yr, show a variety of relationships to the controlling structures, reflecting tectonic as well as gravitational faulting. Recent and present-day landscape evolution and large-volume rockslide distribution in Scandinavia should be viewed from the perspective of tectonic processes involving active normal faults. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.