Geologic units in Baxter county, Arkansas

Additional scientific data in this geographic area

Cotter and Jefferson City Dolomites (Early Ordovician) at surface, covers 56 % of this area

Cotter and Jefferson City Dolomites

St. Peter Sanstone and Everton Formation (Middle Ordovician) (Middle Ordovician) at surface, covers 17 % of this area

St. Peter Sanstone and Everton Formation (Middle Ordovician)

Powell Dolomite (Early Ordovician) at surface, covers 15 % of this area

Powell Dolomite

Boone Formation (Early Mississippian- Meramecian to Osagean) at surface, covers 8 % of this area

Boone Formation

Cason Shale and Fernvale Limestone (Upper Ordovician) and Kimmswick Limestone, Plattin Limestone, and Joachim Dolomite (Middle Ordovician) (Late Ordovician to Middle Ordovician) at surface, covers 3 % of this area

Cason Shale and Fernvale Limestone (Upper Ordovician) and Kimmswick Limestone, Plattin Limestone, and Joachim Dolomite (Middle Ordovician)

Ruddell Shale (Late Mississippian- Chesterian) at surface, covers 0.7 % of this area

Ruddell Shale

Pitkin Limestone, Fayetteville Shale (including the Wedington Sandstone member), and Batesville Sandstone (including the Hindsville Limestone Member) (Late Mississippian- Chesterian) at surface, covers 0.6 % of this area

Pitkin Limestone, Fayetteville Shale (including the Wedington Sandstone member), and Batesville Sandstone (including the Hindsville Limestone Member)