SMITHVILLE DOLOMITE, POWELL DOLOMITE, COTTER DOLOMITE, JEFFERSON CITY DOLOMITE (MOOjc;0)

State	Missouri
Name	SMITHVILLE DOLOMITE, POWELL DOLOMITE, COTTER DOLOMITE, JEFFERSON CITY DOLOMITE
Geologic age	Phanerozoic \| Paleozoic \| Ordovician-Early [Ibexian]
Original map label	Ojc
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.
Primary rock type	dolostone (dolomite)
Secondary rock type	sandstone
Other rock types	shale; conglomerate; chert
Lithologic constituents	Major Sedimentary > Carbonate > Dolostone (Bed) Minor Sedimentary > Clastic > Conglomerate (Lense) Sedimentary > Clastic > Mudstone > Shale (Bed) Sedimentary > Clastic > Sandstone (Bed) Sedimentary > Chemical > Chert (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	Barry - Benton - Bollinger - Boone - Callaway - Camden - Cape Girardeau - Carter - Cedar - Christian - Cole - Cooper - Crawford - Dade - Dallas - Dent - Douglas - Franklin - Gasconade - Greene - Henry - Hickory - Howell - Jefferson - Laclede - Lawrence - McDonald - Maries - Miller - Moniteau - Montgomery - Morgan - Oregon - Osage - Ozark - Perry - Pettis - Phelps - Polk - Pulaski - Ripley - Saint Charles - Saint Clair - Sainte Genevieve - Saint Louis - Scott - Shannon - Stoddard - Stone - Taney - Texas - Warren - Wayne - Webster - Wright