LATE EOCENE

(PRIABONIAN)

Bedrock in the Dougherty Plain region of Georgia is generally Late Eocene (Priabonian or Jacksonian). The main formation is the Ocala Limestone, which has several recognized subdivisions. Toward the northeast the rock is also known as the Tivola Limestone, and is a limestone of sand-sized grains dominated by ectoprocts (bryozoans). Southwestward the limestone becomes finer and the bryozoan component decreases. At the base of the limestone in the entire area there is usually a quartz sand-rich limestone called the Clinchfield Sand. The fossil faunas of these units are very diverse, and are all rather similar. Representative species for all are listed collectively under the Ocala Limestone.

 


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