Search results
Results from the WOW.Com Content Network
Map of Minnesota bedrock by age. Shaded relief image: Superior Upland in the northeast, the flat Red River Valley in the northwest, Central Minnesota's irregular landscape, the Coteau des Prairies and Minnesota River in the southwest, and the southeast's dissected Driftless Area along the Mississippi River below its confluences with the Minnesota and St. Croix in East Central Minnesota
The Minnesota Geological Survey has placed this image in the public domain with the request that credit be given to the Minnesota Geological Survey, University of Minnesota, and to the author(s) of the specific work. These images are available through the Minnesota Digital Library, "Minnesota Reflections".
An early map of the extent of Lake Agassiz (by 19th century geologist Warren Upham). This map is now believed to underestimate the extent of the region once overlain by Lake Agassiz. The largest of all the proglacial lakes was Lake Agassiz, a small part of which occupied the present Red River Valley of Minnesota and North Dakota. Glaciers to ...
The red dots show larger-magnitude earthquakes in Minnesota, Wisconsin, Michigan's Upper Peninsula and southern Ontario. The earthquake near Minnesota's western "bulge" is the Morris earthquake. This map and table shows where Minnesota's earthquakes have occurred. Earthquakes 1, 6, 9, 11, 15 and 18 are in the Great Lakes tectonic zone.
From a geological perspective, Minnesota's Iron Range includes these four major iron deposits: [4] Mesabi Range, the largest iron range, largely within Itasca and Saint Louis counties; Vermilion Range, northeast of the Mesabi, in Saint Louis and Lake counties; Gunflint Range, in the extreme northern portion of Cook County and extending into ...
Ecoregions in Minnesota were largely influenced by the unique glacial history, geology, soil type, land use, and climate of the state. The United States Environmental Protection Agency , Minnesota Department of Natural Resources , and World Wildlife Fund maintain separate classifications of the state's ecoregions.
Glacial Lake Minnesota was a complex of lakes formed by or on the Des Moines Lobe generally south of Mankato, Minnesota. Evidence for it is found in lacustrine sediments in that region. [ 13 ] The lakes may have consisted of bodies of water trapped on the surface of the decaying ice sheet, [ 14 ] lakes created as the lobe retreated, [ 7 ] or ...
Pages in category "Geology of Minnesota" The following 34 pages are in this category, out of 34 total. ... Minnesota Geological Survey; Glacial history of Minnesota;