An Overview of the Chipola Formation, Northwestern Florida

Abstract

The Alum Bluff Group of northwestern Florida includes four "formations" - the Chipola, Oak Grove, Shoal River, and Hawthorn units (Fig. I). Of these, the Chipola and Oak Grove are believed, on the basis of molluscan fauna, to be stratigraphic equivalents, and arc of late Early Miocene age (Akers, 1972). The Shoal River and Hawthorn are assumed to be Middle Miocene.