Lake McConnell was a very large proglacial lake that existed in what is now Canada from 11,800 to 8,300 years ago.[1] Other sources give starting and ending dates of about 12,000[2] and between 9,000 and 8,000 years ago,[3] respectively. It covered parts of what are now the Great Bear Lake, Great Slave Lake and Lake Athabaska basins up to an elevation of 280 m (920 ft)[4] or 305 m (1,001 ft),[5] with a maximum surface area of 210,000 km2 (81,000 sq mi) achieved 10,500 years ago.[1] At its greatest length of 1,100 km (680 mi), it was longer than any modern freshwater lake.[2] "Lake McConnell (or its smaller predecessor, Lake Peace) is believed to have drained first into Lake Agassiz", an even larger lake to the southeast, "then into the Arctic Ocean via the Mackenzie River, then back into Lake Agassiz, and then back to the Arctic Ocean" at various times in its history.[2] Between 9,000 and 8,000 years ago, it divided to form Great Slave Lake and Lake Athabasca. These two and Great Bear Lake are considered its 'daughter' lakes.[2]
^ abSmith, Derald G. (1994). "Glacial lake McConnell: Paleogeography, age, duration, and associated river deltas, mackenzie river basin, western Canada". Quaternary Science Reviews. 13 (9–10): 829–843. Bibcode:1994QSRv...13..829S. doi:10.1016/0277-3791(94)90004-3.
^ abcdPielou, E. C. (1992). After the Ice Age: The Return of Life to Glaciated North America. University of Chicago Press. p. 193. ISBN0226668126. Retrieved September 23, 2012.
^Bednarski, J. M. "Quaternary geology of northeastern Alberta". National Resources Canada. Retrieved September 23, 2012.
^Kerr, D. E.; Wilson, P. (2000). "Preliminary surficial geology studies and mineral exploration considerations in the Yellowknife area, Northwest Territories" (PDF). Geological Survey of Canada. Retrieved September 23, 2012.
^Padbury, G. A.; Acton, D. F.; Sturshnoff, Colette T. (1998). Ecoregions of Saskatchewan. CPRC Press. p. 54. ISBN0889770972. Retrieved September 23, 2012.
External linksedit
Map of Lake McConnell at 10 ka BP
A larger scale map, with "L. Mc." in the upper left
November 23, 2023
lake, mcconnell, various, mcconnell, lakes, mcconnell, lake, very, large, proglacial, lake, that, existed, what, canada, from, years, other, sources, give, starting, ending, dates, about, between, years, respectively, covered, parts, what, great, bear, lake, g. For various McConnell Lakes see McConnell Lake Lake McConnell was a very large proglacial lake that existed in what is now Canada from 11 800 to 8 300 years ago 1 Other sources give starting and ending dates of about 12 000 2 and between 9 000 and 8 000 years ago 3 respectively It covered parts of what are now the Great Bear Lake Great Slave Lake and Lake Athabaska basins up to an elevation of 280 m 920 ft 4 or 305 m 1 001 ft 5 with a maximum surface area of 210 000 km2 81 000 sq mi achieved 10 500 years ago 1 At its greatest length of 1 100 km 680 mi it was longer than any modern freshwater lake 2 Lake McConnell or its smaller predecessor Lake Peace is believed to have drained first into Lake Agassiz an even larger lake to the southeast then into the Arctic Ocean via the Mackenzie River then back into Lake Agassiz and then back to the Arctic Ocean at various times in its history 2 Between 9 000 and 8 000 years ago it divided to form Great Slave Lake and Lake Athabasca These two and Great Bear Lake are considered its daughter lakes 2 See also editList of prehistoric lakesReferences edit a b Smith Derald G 1994 Glacial lake McConnell Paleogeography age duration and associated river deltas mackenzie river basin western Canada Quaternary Science Reviews 13 9 10 829 843 Bibcode 1994QSRv 13 829S doi 10 1016 0277 3791 94 90004 3 a b c d Pielou E C 1992 After the Ice Age The Return of Life to Glaciated North America University of Chicago Press p 193 ISBN 0226668126 Retrieved September 23 2012 Bednarski J M Quaternary geology of northeastern Alberta National Resources Canada Retrieved September 23 2012 Kerr D E Wilson P 2000 Preliminary surficial geology studies and mineral exploration considerations in the Yellowknife area Northwest Territories PDF Geological Survey of Canada Retrieved September 23 2012 Padbury G A Acton D F Sturshnoff Colette T 1998 Ecoregions of Saskatchewan CPRC Press p 54 ISBN 0889770972 Retrieved September 23 2012 External links editMap of Lake McConnell at 10 ka BP A larger scale map with L Mc in the upper left Retrieved from https en wikipedia org w index php title Lake McConnell amp oldid 1183815106, wikipedia, wiki, book, books, library,
