Sedimentology of medial moraines on Berendon Glacier, British Columbia, Canada: Implications for debris transport in a glacierized basin

Abstract

Research Article| November 01, 1978 Sedimentology of medial moraines on Berendon Glacier, British Columbia, Canada: Implications for debris transport in a glacierized basin N. EYLES; N. EYLES 1School of Environmental Sciences, University of East Anglia, Norwich NR4 7TJ, England Search for other works by this author on: GSW Google Scholar R. J. ROGERSON R. J. ROGERSON 2Departments of Geography and Geology, Memorial University, St. John's, Newfoundland, Canada A1C 5S7 Search for other works by this author on: GSW Google Scholar Author and Article Information N. EYLES 1School of Environmental Sciences, University of East Anglia, Norwich NR4 7TJ, England R. J. ROGERSON 2Departments of Geography and Geology, Memorial University, St. John's, Newfoundland, Canada A1C 5S7 Publisher: Geological Society of America First Online: 01 Jun 2017 Online ISSN: 1943-2674 Print ISSN: 0016-7606 Geological Society of America GSA Bulletin (1978) 89 (11): 1688–1693. https://doi.org/10.1130/0016-7606(1978)89<1688:SOMMOB>2.0.CO;2 Article history First Online: 01 Jun 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn Email Tools Icon Tools Get Permissions Search Site Citation N. EYLES, R. J. ROGERSON; Sedimentology of medial moraines on Berendon Glacier, British Columbia, Canada: Implications for debris transport in a glacierized basin. GSA Bulletin 1978;; 89 (11): 1688–1693. doi: https://doi.org/10.1130/0016-7606(1978)89<1688:SOMMOB>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 The character of sediments from medial moraines on Berendon Glacier, British Columbia, reflects periglacial processes rather than direct glacial erosion and transport. Sediments are passively transported as talus by the glacier, and a distinct sedimentology can be contrasted with lodgement tills. Medial morane sediment is derived from a number of sources and is transported on the glacier surface and at depth near the glacier bed — there is no evidence of either textural evolution with increasing distances of glacial transport or enhanced scour of the glacier bed in the vicinity of medial moraines.Particle-size distribution of both medial moraine debris (supraglacial morainic till) and lodgment tills is found to be independent of source rock. A bimodal grain-size distribution widely reported from the analysis of far-traveled Pleistocene tills from the mid-latitudes, reflecting the crushing characteristics of component minerals in the source rock, is not exhibited by tills from Berendon Glacier which have well-defined lithological sources. This reflects the short distances of debris transport by the glacier and is considered to be typical of other temperal valley glaciers. 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.