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Geologic units in Fulton county, Arkansas

Additional scientific data in this geographic area

Cotter and Jefferson City Dolomites (Early Ordovician) at surface, covers 79 % of this area

Cotter and Jefferson City Dolomites

Powell Dolomite (Early Ordovician) at surface, covers 11 % of this area

Powell Dolomite

St. Peter Sanstone and Everton Formation (Middle Ordovician) (Middle Ordovician) at surface, covers 10 % of this area

St. Peter Sanstone and Everton Formation (Middle Ordovician)

Smithville Dolomite, Powell Dolomite, Cotter Dolomite, Jefferson City Dolomite (Early Ordovician-Ibexian Series) at surface, covers < 0.1 % of this area

Fine crystalline, silty, cherty dolomite, and oolitic chert with local sandstone beds.