

3 

 O 

 CO 



O^OOOO^OO^OOqOOO 



zgzzzz|zz|zzgzzz 



CEL (4) 

 INCO(3) 

 CEL (4) 

 INC0(3) 

 CEL (4) 

 INC0(3) 

 NADC (7) 

 CEL (4) 

 INC0(3) 

 CEL (4) 

 INC0(3) 





c 

 o 



8 



o 



u 



-a 

 n. 



C(PR) 



S-C;S-T;WB(NC) 



c 



C(PR);P(PR) 



C(PR) 

 C(PR);P(PR) 



S-C; S-T 



C(PR);P(PR) 



C(PR) 



S-C 



I-C 



C(PR) 



S-C; S-T; WB (NC) 



C 



C(PR);P(PR) 



C(PR);P(PR) 



SL-C;T 



NC 



SL-C;T 



NC 



C; E;P(PR);T 



I-C 



S-C; S-T; WB (NC) 



C;E;T 



C 



P(PR);T 



NC 





Maximum 



Tunnel Length 



(mils) 



o o o o o 

 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 N 1 1 « | I P. I o | 





Crevice 

 Depth fo 

 (mils) 



O | fM O O O |00 |_0 it-^OO 



J O i— 1 O (N __ 1 0\(vlOO 

 CO CO rt 1 <N 





Maximum 



Pit Depth 



(mils) 



ooooooo oo ooo 



OOOOU-.0 OOmO 







t^ <3" iri <N1 -tf- (N^O r-irn -^ r-n eg 



<N^--I^H^H^ rt^mr-i 





d I o d d d I d d loo Io^^h 



V V 



OOOOOO | OOOO 

 V V V V V V V 





a. P 



Q 



00000000000000u->lr> 

 000000Tt-T|-OOO-+*-t-Tt-t^r^I-^ 



OOOOOOOOOOO 





^O^O^iflWViiAViNNNINNM 





Exposure 



(day) 



OOOu^u-txOMD^OCNavOOOOO'O 



(S(S(N<NOOOOO>i-iu-i 





C 



E 

 c 



p 



c 



££co£cn££cog:g:cog:£co£:g: 



^^coco^^^coco^^: 





< 



OOOOOOOOOOOOOOOO 



OOOOOOOOOOO 







cococococococococococo 



143 



