Abrupt glacial valley incision at 0.8 Ma dated from cave deposits in Switzerland

Abstract

Research Article| February 01, 2007 Abrupt glacial valley incision at 0.8 Ma dated from cave deposits in Switzerland Philipp Haeuselmann; Philipp Haeuselmann 1Institute of Applied Geology, University of Natural Resources and Applied Life Sciences, Peter Jordan Strasse 70, 1190 Vienna, Austria Search for other works by this author on: GSW Google Scholar Darryl E. Granger; Darryl E. Granger 2Earth and Atmospheric Sciences, 1397 Civil Engineering Building, Purdue University, West Lafayette, Indiana 47907, USA Search for other works by this author on: GSW Google Scholar Pierre-Yves Jeannin; Pierre-Yves Jeannin 3Swiss Institute for Speleology and Karstology SISKA, Box 818, 2300 La Chaux-de-Fonds, Switzerland Search for other works by this author on: GSW Google Scholar Stein-Erik Lauritzen Stein-Erik Lauritzen 4Department of Earth Science, University of Bergen, Allegaten 41, 5020 Bergen, Norway Search for other works by this author on: GSW Google Scholar Geology (2007) 35 (2): 143–146. https://doi.org/10.1130/G23094A Article history received: 14 Jun 2006 rev-recd: 12 Sep 2006 accepted: 25 Sep 2006 first online: 09 Mar 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn MailTo Tools Icon Tools Get Permissions Search Site Citation Philipp Haeuselmann, Darryl E. Granger, Pierre-Yves Jeannin, Stein-Erik Lauritzen; Abrupt glacial valley incision at 0.8 Ma dated from cave deposits in Switzerland. Geology 2007;; 35 (2): 143–146. doi: https://doi.org/10.1130/G23094A 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 Glacial erosion dramatically alters mountain landscapes, but the pace at which glaciers carve a previously fluvial landscape remains poorly defined because long-term valley incision rates are difficult to measure. Here we reconstruct the lowering history of the Aare Valley, Switzerland, over the past 4 m.y. by dating cave sediments with cosmogenic 26Al and 10Be. Incision accelerated from ∼120 m/m.y. to ∼1200 m/m.y. at 0.8–1.0 Ma, at least 1 m.y. after the onset of local glaciation. Rapid incision may have been triggered by lowering of the equilibrium line altitude at the mid-Pleistocene climate transition. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.