Agassiz, Lake

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Agassiz, Lake

(ăg`əsē), glacial lake of the Pleistocene epochPleistocene epoch
, 6th epoch of the Cenozoic era of geologic time (see Geologic Timescale, table). According to a classification that considered its deposits to have been formed by the biblical great flood, the epoch was originally called the Quaternary.
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, c.700 mi (1,130 km) long, 250 mi (400 km) wide, formed by the melting of the continental ice sheet beginning some 14,000 years ago; it eventually covered much of present-day NW Minnesota, NE North Dakota, S Manitoba, central E Saskatchewan, and SW Ontario. The lake was named in 1879 in memory of Louis AgassizAgassiz, Louis
(Jean Louis Rodolphe Agassiz) , 1807–73, Swiss-American zoologist and geologist, b. Môtiers-en-Vuly, Switzerland. He studied at the universities of Zürich, Erlangen (Ph.D., 1829), Heidelberg, and Munich (M.D., 1830).
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 for his contributions to the theory of the glacial epoch. Lake Traverse, Big Stone Lake, and the Minnesota River are in the channel of prehistoric River Warren, Lake Agassiz's original outlet to the south. As the ice melted, the water drained E into Lake Superior, and after the ice disappeared, N into Hudson Bay. The lake's disappearance (c.8,400 years ago) left lakes Winnipeg, Manitoba, and Winnipegosis, Red Lake, Lake of the Woods, and other smaller lakes. The bed of the old lake, the Red River valley, has become an important crop-growing region due to its rich soil.
References in periodicals archive ?
An advantage of a glacial lake reconstruction using a GIS is its applicability to modeling earth features and processes; for example, Teller and Yang (2015) used GIS and DEM data to map Glacial Lake Agassiz shorelines, and Yang and Teller (2005) used GIS to model the history of the Lake of the Woods.
In October 2017, Secretary Zinke hosted a meeting between the Department of the Interior and Congressman Cramer, Garrison Diversion Conservancy District, Lake Agassiz Water Authority, and City of Fargo.
We hope to have speakers address our province's archaeology, our artists, our geology and Lake Agassiz, the Winnipeg General Strike of 1919, women in Manitoba politics and a presentation on Indigenous women in Manitoba's history.
French-Canadian voyageurs took advantage of the waterways and traveled the old drainages of Lake Agassiz from Montreal to the Hudson Bay, camping on the islands of Rainy Lake without leaving any commentary on the ancient quartz veins lying just under the thin soil and pine roots of their campsites.
Southern Manitoba was once covered by Lake Agassiz. The farmland is so flat, you can watch your bird dog run for three days.
In 1989, Wallace Broecker of Columbia University suggested the Younger Dryas resulted from an abrupt overflow of Lake Agassiz, a colossal pool of meltwater along the southern edge of Canada's ice sheet.
Events leading up to the sharp climate-cooling period known as the Younger Dryas, or more familiarly as the "Big Freeze," unfolded after glacial Lake Agassiz, at the southern edge of the Laurentide ice sheet covering Hudson Bay and much of the Canadian Arctic, catastrophically broke through an ice dam and rapidly dumped thousands of cubic kilometers of fresh water into the ocean.
My father was born in 1923 and grew up on a small farm along what was once the beach ridge of Lake Agassiz. Dad used to tell me stories about the abundance of wildlife that inhabited the prairie near their farm, and how they had to rely on hunting and fishing to supplement their meals in lean times.
magna in moose in North Dakota (Units M1C, M5, and M6) is within the northern Red River Valley that is part of the Lake Agassiz Plain Ecoregion (U.
Lawrence River because of a shift in the drainage of glacial Lake Agassiz. More recently, as a consequence of a failure to discover evidence for the spillway through which the runoff would have entered the western terminus of present day Lake Superior, Lowell et al.
Currently she is a first grade teacher at Lake Agassiz Elementary School in Grand Forks, North Dakota.