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Björck, Svante, Keister, Claire M. (1983) The Emerson Phase of Lake Agassiz, independently registered in northwestern Minnesota and northwestern Ontario. Canadian Journal of Earth Sciences, 20 (10) 1536-1542 doi:10.1139/e83-143

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Reference TypeJournal (article/letter/editorial)
TitleThe Emerson Phase of Lake Agassiz, independently registered in northwestern Minnesota and northwestern Ontario
JournalCanadian Journal of Earth Sciences
AuthorsBjörck, SvanteAuthor
Keister, Claire M.Author
Year1983 (October 1)Volume20
Issue10
PublisherCanadian Science Publishing
DOIdoi:10.1139/e83-143Search in ResearchGate
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Mindat Ref. ID477705Long-form Identifiermindat:1:5:477705:6
GUID0
Full ReferenceBjörck, Svante, Keister, Claire M. (1983) The Emerson Phase of Lake Agassiz, independently registered in northwestern Minnesota and northwestern Ontario. Canadian Journal of Earth Sciences, 20 (10) 1536-1542 doi:10.1139/e83-143
Plain TextBjörck, Svante, Keister, Claire M. (1983) The Emerson Phase of Lake Agassiz, independently registered in northwestern Minnesota and northwestern Ontario. Canadian Journal of Earth Sciences, 20 (10) 1536-1542 doi:10.1139/e83-143
In(1983, October) Canadian Journal of Earth Sciences Vol. 20 (10) Canadian Science Publishing
Abstract/Notes Two stratigraphically different sites have been analyzed in different ways, but the results may be interpreted as reflecting a common event: the transgressive Emerson Phase of Lake Agassiz. The southern site at Swift, Minnesota exposes a beach ridge underlain by lakeshore deposits and peat that have been 14C-dated from 10 050 to 9350 years BP. At the other site, a small pond 32 km southeast of Sioux Lookout in northwestern Ontario, lithologic, diatom, and pollen analyses and a radiocarbon age of 9740 years reveal the history of the pond and its basin in relation to Lake Agassiz. Despite more than 300 km of separation it seems probable that the two sites were influenced by the same transgression of Lake Agassiz. The effect and duration differ, however, perhaps because of isostatic adjustments within the Lake Agassiz basin.


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