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Mineral Resources > Online Spatial Data > Geology > by state > Arkansas Geology

Geologic units in Searcy county, Arkansas

[Additional scientific data in this geographic area]

St. Peter Sanstone and Everton Formation (Middle Ordovician) (Phanerozoic | Paleozoic | Ordovician-Middle) at surface, covers 5 % of this area

St. Peter Sanstone and Everton Formation (Middle Ordovician)

Lithology: sandstone; dolostone (dolomite); limestone

Cane Hill Member of Hale Formation (Phanerozoic | Paleozoic | Carboniferous Pennsylvanian-Early [Morrowan]) at surface, covers 13 % of this area

Cane Hill Member of Hale Formation

Lithology: sandstone; siltstone; conglomerate

Ruddell Shale (Phanerozoic | Paleozoic | Carboniferous Mississippian-Late [Chesterian]) at surface, covers 2 % of this area

Ruddell Shale

Lithology: shale

Cason Shale and Fernvale Limestone (Upper Ordovician) and Kimmswick Limestone, Plattin Limestone, and Joachim Dolomite (Middle Ordovician) (Phanerozoic | Paleozoic | Ordovician-Middle Ordovician-Late) at surface, covers 6 % of this area

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

Lithology: limestone; shale; sandstone

Bloyd Shale, and Prairie Grove Member of the Hale Formation (Phanerozoic | Paleozoic | Carboniferous Pennsylvanian-Middle [Morrowan]) at surface, covers 19 % of this area

Bloyd Shale, and Prairie Grove Member of the Hale Formation

Lithology: sandstone; shale; limestone; conglomerate

Powell Dolomite (Phanerozoic | Paleozoic | Ordovician-Early) at surface, covers < 0.1 % of this area

Powell Dolomite

Lithology: dolostone (dolomite); shale; sandstone; conglomerate

Pitkin Limestone, Fayetteville Shale (including the Wedington Sandstone member), and Batesville Sandstone (including the Hindsville Limestone Member) (Phanerozoic | Paleozoic | Carboniferous Mississippian-Late [Chesterian]) at surface, covers 18 % of this area

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

Lithology: sandstone; shale; limestone

Atoka Formation, undivided (Phanerozoic | Paleozoic | Carboniferous Pennsylvanian-Middle [Atokan] ) at surface, covers 0.2 % of this area

Atoka Formation, undivided

Lithology: sandstone; shale; coal

Boone Formation (Phanerozoic | Paleozoic | Carboniferous Mississippian-Early [Meramecian Osagean]) at surface, covers 35 % of this area

Boone Formation

Lithology: limestone; chert; shale

Lafferty, St. Clair and Brassfield Limestones (Phanerozoic | Paleozoic | Silurian) at surface, covers 0.5 % of this area

Lafferty, St. Clair and Brassfield Limestones

Lithology: limestone; mudstone