Low-velocity glacial surges—Processes unlocked by modern surge on Svalbard

Research Article| July 01, 2006 Low-velocity glacial surges—Processes unlocked by modern surge on Svalbard Ida Lønne Ida Lønne 1Villaveien 21, N-1440 Drøbak, Norway Search for other works by this author on: GSW Google Scholar Geology (2006) 34 (7): 553–556. https://doi.org/10.1130/G21799.1 Article history received: 19 Apr 2005 rev-recd: 10 Feb 2006 accepted: 14 Feb 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 Ida Lønne; Low-velocity glacial surges—Processes unlocked by modern surge on Svalbard. Geology 2006;; 34 (7): 553–556. doi: https://doi.org/10.1130/G21799.1 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 The Fridtjovbreen glacier surged for 12 yr (1991–2002). The maximum extent with a run-out distance of ∼4 km was reached after 7 yr. On the basis of ice-front behavior, the active phase of the surge can be divided into four stages: increased ice flow but stable ice-front position (30 months), advancing ice front (54 months with an average advance rate of 2.5 m day−1), maximum extent (12 months), and retreating ice front with persistent ice flow (∼36 months). The most prominent landforms developed during this surge are a network of composite thrust moraines on the deglaciated seafloor, with a sediment architecture indicating that ice flux persisted during the glacial retreat. Drawdown of land-based ice contributed to the protracted deceleration phase, and the intense thrusting was a result of ice flow along an undulating seafloor and the buttressing effect of a seasonally frozen fjord. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.