MORAINES IN THE APPALACHIAN REGION OF QUEBEC
1964; Geological Society of America; Volume: 75; Issue: 12 Linguagem: Inglês
10.1130/0016-7606(1964)75[1249
ISSN1943-2674
Autores Tópico(s)Geological formations and processes
ResumoResearch Article| December 01, 1964 MORAINES IN THE APPALACHIAN REGION OF QUEBEC NELSON R GADD NELSON R GADD DEPT. MINES AND TECHNICAL SURVEYS, GEOLOGICAL SURVEY OF CANADA, OTTAWA, ONTARIO, CANADA Search for other works by this author on: GSW Google Scholar GSA Bulletin (1964) 75 (12): 1249–1254. https://doi.org/10.1130/0016-7606(1964)75[1249:MITARO]2.0.CO;2 Article history received: 26 May 1964 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 NELSON R GADD; MORAINES IN THE APPALACHIAN REGION OF QUEBEC. GSA Bulletin 1964;; 75 (12): 1249–1254. doi: https://doi.org/10.1130/0016-7606(1964)75[1249:MITARO]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 Reconnaissance along the northern flank of the Appalachian Highland has revealed a new "highland front" morainic system that extends a distance of about 225 miles between Rivière du Loup and Granby, Quebec. This system is thought to have controlled invasion of the St. Lawrence Lowland by the Champlain Sea and, probably at about the same time, the late stages of glacial lakes in the Lake Champlain basin. A new radiocarbon date on shells from Kingsey Falls, Quebec, gives a minimum age of 11,410 ± 150 years for the Champlain Sea, herein redefined, and for the so-called "highland front" moraine. A presumably older morainic system at higher elevation is shown over a distance of about 60 miles between St. Philémon (Dorchester) and Leeds Village, Quebec. Two drainage channels parallel to and south of these moraines are shown; the more easterly, now occupied by the Daaquam River, may have connected the Chaudière Valley to the St. John Valley and may have provided drainage to the Atlantic along the trend of the Appalachians at a time earlier than about 12,720 years B.P. 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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