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Bull Fork Formation and Grant Lake and Calloway Creek Limestones, undivided

Bull Fork Formation and Grant Lake and Calloway Creek Limestones, undivided; Along Ohio River in Oldham and Trimble Counties
StateKentucky
NameBull Fork Formation and Grant Lake and Calloway Creek Limestones, undivided
Geologic ageOrdovician
Original map labelObc
Primary rock typelimestone
Secondary rock typeshale
Other rock types
Lithologic constituents
Major
Sedimentary > Carbonate > Limestonelithologies and lithology percentages estimated from stratigraphic column on paper source map; collectively these units are about 95% limestone (some of it nodular) and 5% interbedded shale
Incidental
Sedimentary > Clastic > Mudstone > Shalelithologies and lithology percentages estimated from stratigraphic column on paper source map; collectively these units are about 95% limestone (some of it nodular) and 5% interbedded shale
Map references
Noger, M.C., compiler, 1988, Geologic map of Kentucky: sesquicenntennial edition of the Kentucky Geological Survey: U.S. Geological Survey and the Kentucky Geological Survey, scale 1:500,000.
Unit references
Noger, M.C., compiler, 1988, Geologic map of Kentucky: sesquicenntennial edition of the Kentucky Geological Survey: U.S. Geological Survey and the Kentucky Geological Survey, scale 1:500,000.
Geographic coverageOldham - Trimble

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