









( , 







« 





is: 











<Ti H 









"Ti 



LU — ' 











LJ 











^ 











cc 











I— 











en 











■ — i 











D 











O 











1 











69 



1 I 

 TIME 



(YEAR] 



CONTOUR : 



MLW 



73 



LU — ' 



69 71 



TIME (YEAR] 

 CONTOUR : MLW 



en ■+ 



H 1 1 h- h- 



69 71 73 



TIME (TERR) 

 CONTOUR : MSL 



o 



'69 



71 

 TIME (YEAR] 



CONTOUR : MSL 



-1 1 1- 1 



69 71 



TIME (YEAR] 

 CONTOUR : MHW 



o 

 3 1 + 



71 

 TIME (YEAR) 



CONTOUR : MHW 



FB 3 FB. 4 



DISTANCE FROM THE BASE LINE TO STATED CONTOURS 



172 



