The geology of Illinois includes extensive deposits of marine sedimentary rocks from the Palaeozoic, as well as relatively minor contributions from the Mesozoic and Cenozoic. Ice age glaciation left a wealth of glacial topographic features throughout the state.
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The geologyofIllinois includes extensive deposits of marine sedimentary rocks from the Palaeozoic, as well as relatively minor contributions from the...
United States Geological Survey. Archived from the original on July 7, 2012. Retrieved September 23, 2009. "Historic Quakes: Southern Illinois 1968 11 09...
Earthquake Hazard in the Heart of the Homeland". United States Geological Survey. Retrieved 2008-04-18. "M 3.8 - Illinois-Indiana border region". earthquake...
Illinois State Geological Survey, Champaign, Illinois. Hansel, A.K. and E.D. McKay, in press, Quaternary Period, in D.R. Kolata, ed., The Geologyof Illinois...
-87.622 Thornton Quarry is one of the largest aggregate quarries in the world, located in Thornton, Illinois just south of Chicago. The quarry is 1.5 miles...
crater in southern Peoria County, Illinois, in the United States. It is one of two known meteor craters in Illinois. It is 4 kilometers (2.5 mi) in diameter...
northwestern corner ofIllinois. The Driftless Area is a USDA Level III Ecoregion: Ecoregion 52. The Driftless Area takes up a large portion of the Upper Midwest...
portion and the presence of shatter cone structures support the impact origin. Wiggers, Ray (1997). Geology Underfoot in Illinois. Missoula, Mont: Mountain...
Illinois' Ice Age Legacy. Illinois State Geological Survey GeoScience Education Series 14. 66 pages. Willman, W.B. 1971. Summary of the Geologyof the...
Illinois (/ˌɪlɪˈnɔɪ/ IL-in-OY) is a state in the Midwestern region of the United States. It borders Lake Michigan to its northeast, the Mississippi River...
The 2008 Illinois earthquake was one of the largest earthquakes ever recorded in the Midwest state ofIllinois. This moderate strike-slip shock measured...
edges, where nunataks were common in hilly areas. It created much of the surface geologyof southern Canada and the northern United States, leaving behind...
called the "Illinois Ozarks", especially in promotional literature for tourism. But they are technically not a part of The Ozarks, a geologically similar...
a geologic basin centered on the Lower Peninsula of the U.S. state of Michigan. The feature is represented by a nearly circular pattern ofgeologic sedimentary...
The Illinois State Geological Survey and the Illinois State Water Survey have collected data that indicate declining water levels in certain parts of the...
found in central and eastern Missouri and west-central and southwestern Illinois on upland ridgetops, backslopes, and benches adjacent to the Missouri and...
sections of both Illinois and Indiana. It is named for the Wabash River and, as the name is typically used, spans the middle to the middle-lower portion of the...
portal Illinois portal List of census-designated places in Illinois List of unincorporated communities in Illinois Administrative divisions ofIllinois List...
The following is a list of earthquakes in Illinois. 1811–1812 New Madrid earthquakes GeologyofIllinoisIllinois Basin New Madrid Seismic Zone Sandwich...
State University. Retrieved January 27, 2020. University of Wisconsin, Green Bay, Dept ofGeology[full citation needed] Glacial Lakes Chippewa and Stanley...
encircles the southern tip of Lake Michigan in North America. It begins near Elgin, Illinois, and extends south and west of Chicago metropolitan area,...
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