Age and Correlation of Pleistocene Deposits at Garfield Heights (Cleveland), Ohio
Radiocarbon dates and new exposures in the Mill Creek Valley in Garfield Heights, just southeast of Cleveland, Ohio, now permit a revised correlation of the Pleistocene deposits, Illinoian gravel is overlain by thick paleosol, Sangamonian in age. Above the paleosol is “Lower loess.” 4 feet thick, fossiliferous in the lower calcareous part, and late Altonian in age; it is overlain by calcareous, fossiliferous “Upper loess,” 2.5 feet thick, dated 28,195 ± 535 radiocarbon years B.P. and therefore early Farmdalian in age. Above this is pro-Kent lacustrine silt and clay with beetle fragments (described in the following paper by G. R. Coope); wood in the lowest part is dated as 24,600 ± 800 and 23,313 ± 391 years B.P. Kent Till overlying the lacustrine material is therefore about 23,250 years B.P. and thus earliest Woodfordian. Hiram Till, later Woodfordian, overlies the Kent Till and is the surface material.