DECORAH GROUP, PLATTIN GROUP (MOOdp;0)

State	Missouri
Name	DECORAH GROUP, PLATTIN GROUP
Geologic age	Phanerozoic \| Paleozoic \| Ordovician-Middle [Mohawkian]
Original map label	Odp
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.
Geographic coverage	Cape Girardeau - Franklin - Jefferson - Lincoln - Perry - Pike - Ralls - Sainte Genevieve - Saint Louis - Scott