National Geologic Map Database
Product Description Page
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Title: Geology of microcrystalline silica (Tripoli) deposits, southernmost Illinois
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Author(s): Berg, R.B., and Masters, J.M.
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Publishing Organization: Illinois State Geological Survey
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Series and Number: Circular 555
- Publication Date: 1994
- Map Scale: 1:14,118
- Cross Section: Yes
- North Latitude: 37° 19' 29" N (37.3246)
- South Latitude: 37° 17' 31" N (37.2920)
- East Longitude: 89° 17' 2" W (-89.2840)
- West Longitude: 89° 20' 32" W (-89.3422)
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