Smithville Dolomite, Powell Dolomite, Cotter Dolomite, Jefferson City Dolomite

Fine crystalline, silty, cherty dolomite, and oolitic chert with local sandstone beds.
State Missouri
Name Smithville Dolomite, Powell Dolomite, Cotter Dolomite, Jefferson City Dolomite
Geologic age Early Ordovician-Ibexian Series
Lithologic constituents
Major
Sedimentary > Carbonate > Dolostone (Bed)
Minor
Sedimentary > Clastic > Mudstone > Shale (Bed)
Sedimentary > Clastic > Sandstone (Bed)
Sedimentary > Chemical > Chert (Bed)
Sedimentary > Clastic > Conglomerate (Lens)
Comments IN SOUTHEAST MO-Smithville Dolomite- (150 ft. max) cherty dolomite; Powell Dolomite- (175 ft. max) dolomite with thin beds of sandstone and shale; Cotter Dolomite- (459 ft. max) oolitic dolomite with thin beds of sandstone and shale; Jefferson City Dolomite- (350 ft. max) dolomite with lens of conglomerate and shale. Jefferson City Dolomite is host to barite deposits on the northwest flank of Ozark Uplift.
References

Howe, W.B. and Koenig, 1961, The Stratigraphic Succession in Missouri: Missouri Geological Survey and Water Resources, Vol XL. 2nd Series.

NGMDB product
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