We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Les écoulements et le transport glaciaires dans la partie septentrionale du Nunavik (Québec).
- Authors
Daigneault, Robert-André; Bouchard, Michel A.
- Abstract
In northern Nunavik, orientation of ice-flow features and dispersal patterns of lithologic indicators suggest three major regional ice-flow phases. The oldest ice-flow phase is related to the buildup of an outflow centre, the Ungava centre, over the high plateaux located north of the Povungnituk Hills. During that event, probably of Early Wisconsinan age, ice flows towards the south and southeast carried Cape Smith Belt rock fragments over a maximum distance of 65 km. The second phase is characterized by ice flow mainly towards the north from an outflow ice centre located south of the studied area (Payne centre). The most recent ice-flow phase is related to the presence of the northern extension of the New-Quebec ice divide. From that northwest-trending ice divide extending between Ivujivik and Lake Nantais, ice was flowing outward on the peninsula. The orientation of most of the ice-flow features and dispersal patterns is associated with that last ice flow. North of the Cape Smith Belt, glacial transport was at least 70 km. In Hudson Strait, ice-flow and glacial transport data support the existence of an eastward flowing ice stream.
- Subjects
ALASKA; QUEBEC (Province); SMYTH, Cape (Alaska); UNITED States; CANADA; ICE sheets; GLACIAL climates; PHYSICAL geography
- Publication
Canadian Journal of Earth Sciences, 2004, Vol 41, Issue 8, p919
- ISSN
0008-4077
- Publication type
Article
- DOI
10.1139/e04-048