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Powell Dolomite

Powell Dolomite
State Arkansas
Name Powell Dolomite
Geologic age Phanerozoic | Paleozoic | Ordovician-Early
Comments Oolitic cherty dolomite with thin beds of shale, sandstone and conglomerate. Approximately 220 ft. maximum thickness.
Primary rock type dolostone (dolomite)
Secondary rock type shale
Other rock types sandstone; conglomerate
Lithologic constituents
Major
Sedimentary > Carbonate > Dolostone (Bed)
Minor
Sedimentary > Clastic > Mudstone > Shale (Bed)
Sedimentary > Clastic > Sandstone (Bed)
Sedimentary > Clastic > Conglomerate (Bed)
Map references
Haley, B. R., Glick, E. E., Bush, W. V.; Clardy, B. F.; Stone, C. G.; Woodward, M. B., Zachry, D.L., 1993, Geologic Map of Arkansas: U.S.Geological Survey Special Geologic Map. Scale 1:500K
Unit references
Caplan, W. M., 1960, Subsurface geology of pre-Everton rocks in northern Arkansas: Information Circular - State of Arkansas, Arkansas Geological and Conservation Commission, 17 pp.
Counties Baxter - Benton - Boone - Carroll - Fulton - Izard - Lawrence - Madison - Marion - Newton - Randolph - Searcy - Sharp - Stone