00000nam 2200000zi 4500 9.916266 CaOODSP 20240129102451 m o d f cr mn||||||||| 221017t20222022oncab ob f000 0 eng d 9780660458601 CaOODSP eng rda CaOODSP eng eng fre n-cn-qu n-cn-nf M183-7/5-2022E-PDF Rice, J. M. author. (Jessey Murray) Quaternary geology of the south Core Zone area, Quebec and Labrador / J.M. Rice, R.C. Paulen, M. Ross, M.B. McClenaghan, and H.E. Campbell. [Ottawa] : Geological Survey Canada, 2022. ©2022 1 online resource (58 pages) : colour illustrations, colour maps. text txt rdacontent computer c rdamedia online resource cr rdacarrier Preprint, 2816-7872 ; 5 Includes bibliographical references. "The complex glacial geomorphology of east-central Quebec and western Labrador has resulted in conflicting ice sheet reconstructions leaving many questions regarding the behaviour of large ice sheets within their inner regions. Specifically, the ice-flow chronology and subglacial conditions remain poorly constrained. To address this, surficial geology investigations were conducted across the border of Quebec and Labrador. A complex glacial history consisting of five ice-flow phases influenced by regional ice stream dynamics was identified, including a near-complete ice-flow reversal. During each ice-flow phase, the subglacial thermal conditions fluctuated both spatially and temporally, resulting in palimpsest glacial dispersal patterns. Deglacial ages from samples collected as part of this research confirm deglaciation occurred relatively rapidly around 8 ka. The results of this work improve our understanding of the glacial history of an inner region of the Laurentide Ice Sheet and have important implications for mineral exploration in the southern Core Zone area"--Abstract, page 2. Includes abstracts in English and French. Glacial epoch Québec (Province) Glacial epoch Newfoundland and Labrador. Geological time Québec (Province) Geological time Newfoundland and Labrador. Glacial landforms Québec (Province) Glacial landforms Newfoundland and Labrador. Époque glaciaire Québec (Province) Époque glaciaire Terre-Neuve-et-Labrador. Géochronologie Québec (Province) Géochronologie Terre-Neuve-et-Labrador. Géomorphologie glaciaire Québec (Province) Géomorphologie glaciaire Terre-Neuve-et-Labrador. Geological Survey of Canada, issuing body. Preprint (Geological Survey of Canada) 5 (CaOODSP)9.913739 PDF 26.74 MB https://publications.gc.ca/collections/collection_2023/rncan-nrcan/M183-7-5-2022-eng.pdf HTML N/A https://doi.org/10.4095/330903