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ROUBIDOUX FORMATION

ROUBIDOUX FORMATION - sandstone, chert and interbedded dolomite
State Missouri
Name ROUBIDOUX FORMATION
Geologic age Phanerozoic | Paleozoic | Ordovician-Early [Ibexian]
Comments IN SOUTHEAST MO-Roubidoux FM- (250 ft. max) sandstone, chert and some interbedded cherty dolomite. Host to barite deposits on the northwest flank of Ozark Uplift.
Primary rock type sandstone
Secondary rock type chert
Other rock types dolostone (dolomite)
Lithologic constituents
Major
Sedimentary > Clastic > Sandstone (Bed)
Sedimentary > Chemical > Chert (Bed)
Minor
Sedimentary > Carbonate > Dolostone (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 Benton - Bollinger - Butler - Camden - Carter - Cole - Crawford - Dallas - Dent - Douglas - Franklin - Gasconade - Greene - Howell - Iron - Jefferson - Laclede - Maries - Miller - Moniteau - Morgan - Oregon - Osage - Ozark - Perry - Phelps - Pulaski - Reynolds - Ripley - Sainte Genevieve - Saint Francois - Shannon - Texas - Washington - Wayne - Webster - Wright