00000nam 2200000za 4500 9.836441 CaOODSP 20251031142447 cr ||||||||||| 170509s2017 oncabd ob f000 0 eng d CaOODSP eng n-cn--- n-us--- M183-2/8181E-PDF Lewis, C. F. M. Linking subglacial meltwater through the eastern Great Lakes, Ontario and New York (at the time of the Atlantic Heinrich 1 event) with a meltwater flood in the Gulf of Mexico about 13.5 ka (16.2 cal ka) [electronic resource] / C.F.M. Lewis and B.J. Todd. [Ottawa] : Natural Resources Canada, 2017. 1 p. : col. charts, ill. (mostly col.), maps (mostly col.) Geological Survey of Canada, open file ; 8181 Caption title. Includes bibliographical references. "The events and flows described in this Open File fit a scenario in which Laurentide Ice Sheet instability, associated with the H1 event of iceberg discharge to the North Atlantic Ocean, facilitated regional subglacial meltwater flows, first southward, then west-southwestward, leading to rapid transport of meltwater through the eastern Great Lake basins, then southward via the Mississippi River valley to the Gulf of Mexico about 13.6-13.4 (16.4-16.1 cal) ka. The meltwater flows discharged to the Gulf of Mexico where they have been detected by highly negative delta-18O composition of foraminiferal tests”--Summary provided by publisher. gccst Glaciers gccst Floods gccst Geomorphology gccst Surficial geology Todd, Brian J. (Brian Jeremy) Canada. Natural Resources Canada. Geological Survey of Canada. Open file (Geological Survey of Canada) 8181 (CaOODSP)9.506878 PDF 16.44 MB https://publications.gc.ca/collections/collection_2017/rncan-nrcan/M183-2/M183-2-8181-eng.pdf 299649