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Leemon Formation, Maquoketa Group, Cape Limestone, Kimmswick Limestone, Noix-Cyrene Limestone, Maquoketa Shale

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Leemon Formation, Maquoketa Group including: (Girardeau Limestone, Orchard Creek Shale, Thebes Sandstone, Cape La Croix Shale), Cape Limestone, Kimmswick Limestone, Noix-Cyrene Limestone, Maquoketa Shale.
State Missouri
Name Leemon Formation, Maquoketa Group, Cape Limestone, Kimmswick Limestone, Noix-Cyrene Limestone, Maquoketa Shale
Geologic age Late Ordovician to Middle Ordovician
Lithologic constituents
Major
Sedimentary > Carbonate > Limestone (Bed)
Minor
Sedimentary > Clastic > Mudstone > Shale (Bed)
Incidental
Sedimentary > Clastic > Sandstone (Bed)
Comments IN SOUTHEAST MO- (Cincinnatian Series)-Leemon FM- (20 ft. max) oolitic limestone and minor shale; Maquoketa Gruop: Girardeau Limestone- (40 ft. max) gray limestone, Orchard Creek Shale- (50 ft. max) limestone with interbedded shale, Thebes Sandstone- (25 ft. max) quartz sandstone, Cape La Croix Shale (max thickness ?)- shale; Cape Limestone- (40 ft. max) argillaceous limestone; (Mohawkian Series), Kimmswick Limestone- (150 ft. max) massive limestone. IN NORTHEAST MO- (Cincinnatian Series), Noix-Cyrene Limestone- (10 ft. max) oolitic limestone; Maquoketa Shale- (70 ft. max) dolomitic shale; (Mohawkian Series), Kimmswick Limestone- (150 ft. max) massive limestone. Summary: mostly limestone and shale with minor sandstone.
References

Howe, W.B. and Koenig, 1961, The Stratigraphic Succession in Missouri: Missouri Geological Survey and Water Resources, Vol XL. 2nd Series.
NGMDB product
Counties Bollinger - Cape Girardeau - Franklin - Jefferson - Lincoln - Perry - Pike - Ralls - Sainte Genevieve - Saint Louis - Scott