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_2iso639-1
050 4 _aQE
100 1 _aIllinois State Geological Survey
245 1 0 _aGuide to the Geologic Map of Illinois
264 1 _aSalt Lake City, UT :
_bProject Gutenberg,
_c2021
300 _a1 online resource :
_bmultiple file formats
336 _atext
_btxt
_2rdacontent
337 _acomputer
_bc
_2rdamedia
338 _aonline resource
_bcr
_2rdacarrier
490 1 _aIllinois State Geological Survey. Educational series, 7.
500 _aRelease date is 2021-06-26
508 _aStephen Hutcheson and the Online Distributed Proofreading Team at https://www.pgdp.net
520 _a"Guide to the Geologic Map of Illinois" by Illinois State Geological Survey is a scientific publication produced in the early 1960s. This educational guide focuses on the geology of Illinois, particularly highlighting the state's geologic features and formations resulting from past glacial activities, offering insights into the complex history of the earth's geology in this region. The content of the book elaborates on various geological processes, specifically detailing the effects of glaciation on Illinois's landscape around 15,000 years ago. It discusses the types of rocks found beneath the glacial drift, the layers of bedrock, structural geology, and economic geology, including the state's mineral resources such as coal, petroleum, limestone, and dolomite. The guide provides a detailed mapping of these resources, accompanied by explanations of the geological history and the methods used in geological exploration. Overall, it serves as a foundational resource for understanding the geological makeup of Illinois and its historical significance. (This is an automatically generated summary.)
534 _nOriginal publication data not identified
653 _aGeology -- Illinois
653 _aGeology -- Illinois -- Maps
830 0 _aIllinois State Geological Survey. Educational series, 7.
856 4 0 _uhttps://www.gutenberg.org/ebooks/65704
999 _c106526
_d106526