Sakami moraine, Quebec: A 500-km-long moraine without climatic control
1981; Geological Society of America; Volume: 9; Issue: 5 Linguagem: Inglês
10.1130/0091-7613(1981)9 2.0.co;2
ISSN1943-2682
AutoresClaude Hillaire‐Marcel, Serge Occhietti, Jean‐Serge Vincent,
Tópico(s)Geological formations and processes
ResumoResearch Article| May 01, 1981 Sakami moraine, Quebec: A 500-km-long moraine without climatic control Claude Hillaire-Marcel; Claude Hillaire-Marcel 1Department des Sciences de la Terre, Université du Québec à Montréal, Montréal, Québec H3C 3P8, Canada Search for other works by this author on: GSW Google Scholar Serge Occhietti; Serge Occhietti 2Départment de Géographie, Université du Québec à Montréal, Montréal, Québec H3C 3P8, Canada Search for other works by this author on: GSW Google Scholar Jean-Serge Vincent Jean-Serge Vincent 3Geological Survey of Canada, Ottawa, Ontario K1A 0E8, Canada Search for other works by this author on: GSW Google Scholar Author and Article Information Claude Hillaire-Marcel 1Department des Sciences de la Terre, Université du Québec à Montréal, Montréal, Québec H3C 3P8, Canada Serge Occhietti 2Départment de Géographie, Université du Québec à Montréal, Montréal, Québec H3C 3P8, Canada Jean-Serge Vincent 3Geological Survey of Canada, Ottawa, Ontario K1A 0E8, Canada Publisher: Geological Society of America First Online: 02 Jun 2017 Online ISSN: 1943-2682 Print ISSN: 0091-7613 Geological Society of America Geology (1981) 9 (5): 210–214. https://doi.org/10.1130/0091-7613(1981)9 2.0.CO;2 Article history First Online: 02 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 Claude Hillaire-Marcel, Serge Occhietti, Jean-Serge Vincent; Sakami moraine, Quebec: A 500-km-long moraine without climatic control. Geology 1981;; 9 (5): 210–214. doi: https://doi.org/10.1130/0091-7613(1981)9 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 SocietyGeology Search Advanced Search Abstract The Laurentide ice sheet in eastern Canada disintegrated step by step, as evidenced by several morainic complexes. Although commonly interpreted as reflecting climatic events, it seems probable that the disintegration simply related to changes in the dynamics of the ice margin, without climatic control. From the example of the Late Glacial Sakami moraine in Quebec, formed during the drainage of Lake Ojibway into the Tyrrell Sea, the concept of a "re-equilibration moraine," already briefly proposed, is developed. The construction of such a moraine implies a stabilization of the ice front when the glacier margin, previously floating or calving in a lacustrine or marine basin, is suddenly grounded because of topographic blocking or abrupt drop of water level due to drainage. The glacial retreat then pauses until the equilibrium profile of the ice is restored, and a morainic accumulation can form during the halt. 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.
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