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DECORAH GROUP, PLATTIN GROUP

DECORAH GROUP, PLATTIN GROUP
State Missouri
Name DECORAH GROUP, PLATTIN GROUP
Geologic age Phanerozoic | Paleozoic | Ordovician-Middle [Mohawkian]
Comments IN SOUTHEAST and NORTHEAST MO-Decorah Group- (40 ft. max) shale with thin limestone beds; Plattin Group- (450 ft. max) finely crystalline limestone with minor interbedded shale
Primary rock type limestone
Secondary rock type shale
Other rock types
Lithologic constituents
Major
Sedimentary > Carbonate > Limestone (Bed)
Minor
Sedimentary > Clastic > Mudstone > Shale (Bed)
Map references
Middendorf, M. A., and others, 2003, Geologic Map of Missouri: Missouri Geological Survey. Scale 1:500K
Unit references
Howe, W. B. and Koenig, 1961, The Stratigraphic Succession in Missouri: Missouri Geological Survey and Water Resources, Vol XL. 2nd Series.
Counties Cape Girardeau - Franklin - Jefferson - Lincoln - Perry - Pike - Ralls - Sainte Genevieve - Saint Louis - Scott