Compositional changes in deglacial red mud event beds off the Laurentian Channel reveal source mixing, grain-size partitioning and ice retreat

• Published in: Quaternary Science Reviews
• Main Authors: Leng, Wei, von Dobeneck, Tilo, Just, Janna, Govin, Aline, St-Onge, Guillaume, Piper, David J.W.
• Other Authors: Center for Marine Environmental Sciences Bremen (MARUM), Universität Bremen, Bedford Institute of Oceanography, Laboratoire des Sciences du Climat et de l'Environnement Gif-sur-Yvette (LSCE), Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Climat et Magnétisme (CLIMAG), Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Institut des Sciences de la MER de Rimouski (ISMER), Université du Québec à Rimouski (UQAR)
• Format: Article in Journal/Newspaper
• Language: English
• Published: HAL CCSD 2019
• Subjects: Quaternary; Sedimentology-marine cores; North Atlantic; Paleoceanography; Gulf of St. Lawrence; Laurentian Channel Ice Stream; Subglacial outburst floods; Environmental Magnetism; Major element analysis; Provenance study; [SDU.STU.CL]Sciences of the Universe [physics]/Earth Sciences/Climatology; Cabot; Ice Sheet; Newfoundland
• Online Access: https://hal.archives-ouvertes.fr/hal-02181009; https://doi.org/10.1016/j.quascirev.2019.04.031

International audience Between 22 and 17 cal ka BP, five large meltwater events from within the Laurentian Channel Ice Stream deposited mud beds meters thick across a large area of the Laurentian Fan and adjacent continental slopes. This study determines the sources of these event beds and relates t...