|Name||St. Peter Sanstone and Everton Formation (Middle Ordovician)|
|Geologic age||Middle Ordovician|
Sedimentary > Carbonate > Dolostone (Bed)
Sedimentary > Clastic > Sandstone (Bed)
Sedimentary > Carbonate > Limestone (Bed)
|Comments||St. Perter Sanstone-white saccharoidal sandstone (200ft.); Everton FM-mainly dolomite, limestone interbedded with sandstone and some massive sandstone beds (205 ft.). Approximatly 405 ft. maximum thickness. Summary-55% sandstone, 35% dolomite, 10% limestone.|
Ferguson, J.G., 1920. Outlines of the geology, soils, and minerals of the State of Arkansas: Arkansas State Bureau of Mines, Manufactures and Agriculture,192 pp.
|Counties||Baxter - Boone - Carroll - Fulton - Independence - Izard - Lawrence - Madison - Marion - Newton - Searcy - Sharp - Stone|