YERRLY MEAN SER LEVEL 



STRTION NO. 866-5530 



CHARLESTON, SC 



1950 



YEAR 



SOUTHERN ERST CORST 



Figure 11. Relative sea level changes 



from tide gage data at Charleston, SC , 



and summary data for the southern east 



coast* 



to the west by the Blue Ridge Province and/or the Valley and Ridge Province 

 (Figure 12) . 



21. The coastal plain of South Carolina is divisible into Upper, Mid- 

 dle, and Lower sections (Cooke 1936; Richards 1945, 1967). The Upper section 

 is composed of unconsolidated sediments ranging in age from Cretaceous to 

 Early/Middle Miocene. Cretaceous sediments outcrop along the western edge of 

 the coastal plain, adjacent to the fall line that separates them from 



* Personal Communication, 1985, Stacey Hicks, NOS , Rockville, MD. 



25 



