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The Laurentide ice sheet (LIS) was a massive sheet of ice that covered millions of square miles, including most of Canada and a large portion of the Northern United States, multiple times during the Quaternary glaciation epochs, from 2.58 million years ago to the present.
19 paź 2023 · Text on this page is printable and can be used according to our Terms of Service. Any interactives on this page can only be played while you are visiting our website. You cannot download interactives. Illustration showing the extent of the Laurentide ice sheet over North America.
This map shows the extent of the Laurentide Ice Sheet (LIS) at about 11,000 years before present, generalized from Deglaciation of North America and overlaid on the North America shaded relief map (courtesy of the U.S. Geological Survey EROS Data Center).
Laurentide Ice Sheet, principal glacial cover of North America during the Pleistocene Epoch (about 2,600,000 to 11,700 years ago). At its maximum extent it spread as far south as latitude 37° N and covered an area of more than 13,000,000 square km (5,000,000 square miles).
28 lut 2024 · By 8,000 years ago, the Laurentide Ice Sheet was a fraction of its original size, confined mostly to modern day Quebec and Labrador, a size and latitude broadly similar to that of the modern Greenland Ice Sheet.
3 gru 2014 · The growth of a large ice sheet in northern North America deflected the polar jet stream (shown with blue arrows) southward during glacial periods. Increased rainfall rates accompanied the relocated storm track, raising lake levels throughout the Great Basin.
16 lis 2024 · Media in category "Laurentide ice sheet" The following 14 files are in this category, out of 14 total. 7,900 Glacial Lake Agassiz & Glacial Lake Ojibway (7900) ... Pleistocene north ice map.jpg 250 × 417; 38 KB. Taylor County glaciation.jpg 615 × 647; 68 KB. The American journal of science ...
