National Geologic Map Database
Product Description Page
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Title: Niagaran reefs in Illinois and their relation to oil accumulation
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Author(s): Lowenstam, H.A.
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Publishing Organization: Illinois State Geological Survey
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Series and Number: Report of Investigations 145 [36 p.]
- Publication Date: 1949
- Map Scale: 1:2,851,200
- Cross Section: Yes
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* Names and boundaries are not necessarily authoritative, and are provided here solely for general orientation.