Paraglacial Sedimentation: A Consideration of Fluvial Processes Conditioned by Glaciation

Abstract

Research Article| October 01, 1972 Paraglacial Sedimentation: A Consideration of Fluvial Processes Conditioned by Glaciation MICHAEL CHURCH; MICHAEL CHURCH Department of Geography, University of British Columbia, Vancouver 8, British Columbia, Canada Search for other works by this author on: GSW Google Scholar JUNE M RYDER JUNE M RYDER Department of Geography, University of British Columbia, Vancouver 8, British Columbia, Canada Search for other works by this author on: GSW Google Scholar Author and Article Information MICHAEL CHURCH Department of Geography, University of British Columbia, Vancouver 8, British Columbia, Canada JUNE M RYDER Department of Geography, University of British Columbia, Vancouver 8, British Columbia, Canada Publisher: Geological Society of America Received: 29 Nov 1971 Revision Received: 30 Mar 1972 First Online: 02 Mar 2017 Online ISSN: 1943-2674 Print ISSN: 0016-7606 Copyright © 1972, The Geological Society of America, Inc. Copyright is not claimed on any material prepared by U.S. government employees within the scope of their employment. GSA Bulletin (1972) 83 (10): 3059–3072. https://doi.org/10.1130/0016-7606(1972)83[3059:PSACOF]2.0.CO;2 Article history Received: 29 Nov 1971 Revision Received: 30 Mar 1972 First Online: 02 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 MICHAEL CHURCH, JUNE M RYDER; Paraglacial Sedimentation: A Consideration of Fluvial Processes Conditioned by Glaciation. GSA Bulletin 1972;; 83 (10): 3059–3072. doi: https://doi.org/10.1130/0016-7606(1972)83[3059:PSACOF]2.0.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 SocietyGSA Bulletin Search Advanced Search Abstract Glaciation is schematically considered as a perturbation of "normal" fluvial conditions. Drift is unstable in a proglacial or postglacial fluvial environment, resulting in heightened sediment movement that continues as long as drift material remains easily accessible for fluvial erosion and transportation. Sediment yield bears no relation to concurrent primary production of weathered debris.Examples of such "paraglacial" denudation and sedimentation are reported from two contrasting areas. Postglacial valley alluvial deposits are widespread in central Baffin Island where rapid sedimentation continues today; estimated denudation rates are an order of magnitude higher than in comparable unperturbed areas. In south-central British Columbia, rapid sedimentation during the paraglacial period contrasts sharply with present-day conditions. 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.