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U.S. Geological Survey aerial resistivity map of the Decorah, Iowa area, showing the Decorah crater.. A much older meteorite strike created the Decorah crater during the Middle Ordovician Period, 470 million years ago.
Climate data for Sioux City, Iowa (Sioux Gateway Airport), 1991–2020 normals, extremes 1889–present ... Iowa Geological Survey; Iowa Geographical Map Server;
This is a list of townships in Iowa by county based on United States Geological Survey and U.S. Census data. See: List of Iowa townships , List of counties in Iowa , List of cities in Iowa . Contents:
Aquifer mapping: The Iowa Geological Survey will receive $250,000 to map and assess the conditions of the state's underground aquifers, including measuring the volume of groundwater available in ...
Wiskus said the Sierra Club and landowners want the Iowa DNR to deny any new permits for carbon capture pipelines and to work with the Iowa Geological Survey to determine how much water is in the ...
In 1991 and 1992 the U.S. Geological Survey along with others including the Iowa Geological Survey conducted detailed research in part to test the possible connection of the Manson impact structure with the Cretaceous–Paleogene extinction event. The 40 Ar / 39
Books from the Biodiversity Heritage Library monographsofunit31882geol (User talk:Fæ/IA books#Fork6) (batch 1877-1899 #18481) File usage No pages on the English Wikipedia use this file (pages on other projects are not listed).
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