Sandstones comprise nearly half of the Paleozoic (Upper Cambrian-Middle Pennsylvania) lithostratigraphic succession in the southern Ozark region of northern Arkansas and southern Missouri. They record five distinct, but related intervals characterized by 1) Upper Cambrian arkoses resting unconformably on Precambrian granite; 2) Lower Ordovician reworked subarkoses, sublitharentites, and quartzites; 3) Lower Ordovician to Lower Mississippian reworked orthoquartzites; 4) Upper Mississippian first cycle sandstones with few metamorphic rock fragments (mrfs); 5) Lower Pennsylvanian (Morrowan) first cycle sandstones with common mrfs and Middle Pennsylvanian (Atokan) first cycle sandstones with common to abundant mrfs. These sandstones accumulated on a gently sloping cratonic platform reflecting transgressive-regressive, epeiric seas that eroded, transported, reworked and deposited more than 914.4m (3000ft) of terrigenous clastic sediments across what is now the south flank of the Ozark Dome.
Bello, E. C.
"Lithologic Character of the Paleozoic Sandstone Succession, Southern Ozark Region, Arkansas, and Missouri,"
Journal of the Arkansas Academy of Science: Vol. 70
, Article 10.
Available at: https://scholarworks.uark.edu/jaas/vol70/iss1/10