91 



- 



100 - 



LU 



UJ 200 



< 

 LU 

 CO 



300 - 



25 



- 50 



m 



- 75 



- 100 



5 10 15 20 



THOUSANDS OF YEARS BEFORE PRESENT 



Fig. 7.1, 



The Rise of Sea Level as Obtained from Carbon- 14 Dates in 

 Relatively Stable Areas (from Shepard, 1963). Break in Slope 

 some 6000 Years BP may have Provided Basis for Barrier Island 

 Stability. 



