Before 10,500 BP 



Prtttfil MHT 







4.900 BP 





6tf 



^ 



T, •stackyard 



ROAD "K" 5 



40' 



- 



N. 





2tf 



- 



V 









- t -'% 



ff«l«iil MHT 



-20' 



S^^:)i 



rf 



- 





%v-^ 



LJ 



10.500 BP 



3,625 BP 







6300 



BP 



60' 





g^ •PARKER RIVER "L" 4 



40' 



- 



^V 





20" 



- , 



%^ 









- 



' ^ 



w Pf»i«nl MHT 



■?rt 



- 





%s. 



-40' 



-'%.t 



Present 



•radiocarbon dates 



Figure 32. Sea- level Trends as Presented by Mclntire and Morgan (1963) 

 for the Plum Island Area. The levels shown here are based 

 on radiocarbon dates. Matching the stratigraphy determined 

 in the above study with that presented by McCormick (1968) 

 suggests an approximate time frame as in Figures 30 and 31. 



52 



