SPECIAL PUBLICATION NO. 27 Figure 5. SW-NE cross-section from Cape Sable to vicinity of Tamiami Trail. (Modified from Spackman, et al., 1964; and Spackman, et al., 1976. water. Specific environments are enumerated for both marine to brackish water deposits and also fresh water deposits. Peats of these deposits are differentiated based mainly on their botanical composition.