Late Wisconsinan ice retreat from the Scotian Shelf

Abstract

Research Article| August 01, 1996 Late Wisconsinan ice retreat from the Scotian Shelf Lewis H. King Lewis H. King 1Marine Geological Consultant, 50 Swanton Drive, Dartmouth, Nova Scotia, Canada B2W 2C5 Search for other works by this author on: GSW Google Scholar Author and Article Information Lewis H. King 1Marine Geological Consultant, 50 Swanton Drive, Dartmouth, Nova Scotia, Canada B2W 2C5 Publisher: Geological Society of America First Online: 01 Jun 2017 Online ISSN: 1943-2674 Print ISSN: 0016-7606 Geological Society of America GSA Bulletin (1996) 108 (8): 1056–1067. https://doi.org/10.1130/0016-7606(1996)108<1056:LWIRFT>2.3.CO;2 Article history First Online: 01 Jun 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn Email Permissions Search Site Citation Lewis H. King; Late Wisconsinan ice retreat from the Scotian Shelf. GSA Bulletin 1996;; 108 (8): 1056–1067. doi: https://doi.org/10.1130/0016-7606(1996)108<1056:LWIRFT>2.3.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 late middle to late Wisconsinan Laurentide ice sheet terminated at the edge of the Scotian Shelf ca. 21 ka, in close temporal agreement with the H-2 Heinrich event of the North Atlantic stratigraphy. The ice began its recession along the western edge of the shelf prior to 20 ka. By 15 ka, the ice front had retreated in a northeastward direction, exposing much of the western half of the shelf, although ice appears to have remained on the inner shelf north of a morainal system for another 2 k.y. The retreat was probably controlled by an ice divide along the axis of the mainland until after 16 ka, at which time an ice-flow pattern began to emanate from local remnant ice centers on the mainland. Late Wisconsinan ice seems to have remained on much of the eastern portion of the shelf as late as 12–14.5 ka, and probably deposited several outer bank moraines. Younger Dryas ice probably was present at isolated land and coastal areas for a short period ca. 10.5 ka, but its offshore influence appears to have been restricted to floating ice and storm-related events. 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.