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This crustal boundary is the Great Lakes tectonic zone (GLTZ). It is a 1,400 km (870 mi) long paleo suture that separates the more than 3,000-million-year-old Archean gneissic terrane to the south – Minnesota River Valley subprovince – from the 2,700-million-year-old Late Archean greenstone- granite terrane to the north – Wawa Subprovince ...
The Great Lakes, also called the Great Lakes of North America, are a series of large interconnected freshwater lakes spanning the Canada–United States border. The five lakes are Superior, Michigan, Huron, Erie, and Ontario. (Hydrologically, Michigan and Huron are a single body of water, as they are joined by Straits of Mackinac.)
Pages in category "Geological history of the Great Lakes" The following 29 pages are in this category, out of 29 total. This list may not reflect recent changes .
Nipissing Great Lakes was a prehistoric proglacial lake. Parts of the former lake are now Lake Superior , Lake Huron , Georgian Bay and Lake Michigan . It formed about 7,500 years before present (YBP).
At times, the ice sheet's southern margin included the present-day sites of coastal towns of the Northeastern United States, and cities such as Boston and New York City and Great Lakes coastal cities and towns as far south as Chicago and St. Louis, Missouri, and then followed the present course of the Missouri River up to the northern slopes of ...
A native Great Lakes whitefish thought extinct for nearly 40 ... U.S. Geological Survey scientists have declined to discuss the Shortnose Cisco find with the Detroit Free Press, part of the USA ...
Formation of the Great Lakes; Glacial Lakes in Michigan; The Quaternary of Northern Ohio: An Outline; Geological Formation of the Great Lakes; Forsyth, Jane L., The Beach Ridges of Northern Ohio, Columbus: Ohio Division of Geological Survey Information Circular 25, 1959, pp. 1–4 (of ten pages) (out of print).
Pages 109–123, in Karrow PF, Calkin PE, eds.Quaternary Evolution of the Great Lakes. St. John's (Newfoundland): Geological Association of Canada Special Paper 30. Larsen CE. 1987. Geological history of glacial Lake Algonquin and the Upper Great Lakes. US Geological Survey Bulletin 1801. 36 pp. Lewis CFM, Cameron GDM, Anderson TW, Heil CW Jr ...