Cretaceous

Cretaceous Rocks
Eastern margin of Ozark Plateaus in northern Arkansas

Age: Late Cretaceous Period, Gulfian Series
Distribution: Eastern margin of Ozark Plateaus in northern Arkansas
Geology: Local deposits of black shaley clay and gravel above rocks of Paleozoic age. Fossils present in this sequence suggest a possible Ozan Formation correlation. This sequence has not been assigned to a specific stratigraphic unit or studied in detail.

Sand And Clay
Eastern margin of the Ozark Plateaus in northern Arkansas

Age: Cretaceous Period?
Distribution: Eastern margin of the Ozark Plateaus in northern Arkansas
Geology: Scattered deposits of sands and clay of uncertain affinities lying above Paleozoic rocks. This sequence has not been assigned to a specific stratigraphic unit or studied in detail.

Cretaceous sand along Highway 122 south of Cord

Cretaceous sand along Highway 122 south of Cord

Cretaceous sand along Highway 122 south of Cord

Cretaceous sand along Highway 122 south of Cord