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GASCONADE DOLOMITE

GASCONADE DOLOMITE - coarse - crystalline cherty dolomite with a basal Gunter Sandstone Member.
StateMissouri
NameGASCONADE DOLOMITE
Geologic agePhanerozoic | Paleozoic | Ordovician-Early [Ibexian]
Original map labelOg
CommentsIN SOUTHEAST MO-Gasconade Dolomite- (700 ft max) coarsely crystalline cherty dolomite with basal sandstone member; Gunter Sandstone Member- (30 ft. max) quartzose sandstone. Host to barite deposits on the northwest flank of Ozark Uplift.
Primary rock typedolostone (dolomite)
Secondary rock typesandstone
Other rock types
Lithologic constituents
Major
Sedimentary > Carbonate > Dolostone (Bed)
Minor
Sedimentary > Clastic > Sandstone (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 coverageBenton - Bollinger - Butler - Camden - Cape Girardeau - Carter - Cole - Crawford - Dallas - Dent - Douglas - Franklin - Gasconade - Hickory - Howell - Iron - Jefferson - Laclede - Madison - Maries - Miller - Morgan - Oregon - Osage - Ozark - Perry - Phelps - Pulaski - Reynolds - Ripley - Sainte Genevieve - Saint Francois - Shannon - Texas - Washington - Wayne - Webster - Wright

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