Figure 26. Third- and fourth-order global sea-level events of the Late Devonian and Early Mississippian (modified from Johnson and others (1985) and Ross and Ross (1988)), and corresponding lithologic units of the central Appalachians. Fras., Frasnian; Famenn., Famennian; Kind., Kinderhookian; Osag., Osagean; Mer., Meramecian; Ches., Chesterian. |