102 Contents. 



PAGE 



The Vicksburgian-Apalachicolan interval 152 



Events of Apalachicolan time 153 



Earlier stage 153 



Shore-line 153 



Material of the sediments 153 



Faunal characters 154 



Summary of events of earlier stage 155 



Later stage 155 



Shore-line 155 



Suwanee Strait and Orange Island 156 



Deformation 156 



Temperature 156 



Absence of Apalachicola sediments west of the Vicksburg 



nucleus 157 



Apalachicolan-Miocene interval 157 



Events of Miocene time 157 



Distribution of Miocene sediments 157 



Lithologj' I S9 



Miocene corals 1 59 



Shore-line 159 



Depth of water 160 



Temperature 161 



Currents 161 



Uplift at the close of the Miocene 162 



Events of Pliocene time 162 



Stratigraphic relations of Pliocene to Miocene sediments 162 



Areal distribution of Marine Pliocene in Florida 162 



Lithology and thickness 1 64 



Shore-line 164 



Depth and temperature of the Pliocene Sea 164 



Conformity of the Pliocene to other geologic boundaries 165 



Events above sea-level 166 



Uplift at the close of the Pliocene 166 



Pliocene-Pleistocene interval 166 



Events of Pleistocene time 168 



Pleistocene submergence 168 



Differences in Pleistocene sediments 168 



Coquina i6g 



Shell marl 170 



Southward extension of buried sands 172 



The Florida oolites 173 



Lostman's River limestone 178 



Key Largo limestone 178 



Surface sands overlying the marine Pleistocene 178 



Upland gray sands 178 



River terraces and other Pleistocene formations 179 



Summary of Pleistocene history 179 



Recent ." 181 



R6suni6 of the geologic history of the Floridian Plateau 181 



Deformation 1 84 



Currents 185 



