is the 

 s i n an 

 of the 

 events . 

 55Fe to 

 and ran 

 10-11 c 

 we meas 

 concent 

 the fac 

 is a ma 

 Maine Y 

 portant 

 fal 1 out 

 1966 fa 

 9.4 ( = 

 by 1975 

 Al thoug 

 di ffere 

 tort th 



this CO 

 ted all 

 data re 

 ratio 2 

 minima , 

 depth 

 excesse 

 (250% 

 4 to 15 

 but a d 



expl anati 

 d mixing , 

 core and 

 In this 

 137Cs is 

 ging upwa 

 m. Evide 

 ured 55Fe 

 rations , 

 t that, a 

 j r 1 n g - 



ankee rea 

 to bear 

 : althoug 

 1 1 out was 

 55Fe to 1 



reduced 

 h geochem 



nt ways, 

 e reactor 



re, howev 

 to fallo 

 ported b 

 38Pu to 



because 

 f r a d i n u 

 s, as exp 

 f fal lout 



mCi • km"2 

 ef i ciency 



on bas 

 of se 

 contam 

 conte 

 quite 

 rd to 

 ntly t 

 were 

 or of 

 s was 

 lived 



ctor ; 

 in mi n 

 h Jose 



chara 

 37cs, 

 this t 

 i c a 1 p 

 fal 1 ou 



waste 

 er , CO 

 ut , ar 



L i V i n 

 39,240 



the CO 

 cl ide- 

 ected 

 ) or 

 repor 

 of Pu 



ed on 

 diment 

 i n a t e d 

 xt the 

 inter 

 1.25 a 

 he thr 

 from t 

 its ra 

 seen a 

 compon 



i n eva 

 d the 

 ph et 

 cteri z 



^^Fe 

 rocess 

 t 55Fe 

 patte 

 ul d ag 

 g u i n g 

 gston 

 Pu. T 

 re was 

 contam 

 from t 

 f 137C 

 ted by 



Jg 



redepos 

 s depos 



by sep 



range 

 e s t i n g : 

 t the s 

 ee rele 

 he 1 ow 

 t i s to 

 t Mills 

 ent of 

 a t i n g 

 Fe ex 

 al (197 

 ed by a 

 the ela 



to 137 

 es will 



is unl 

 rns . T 

 a i n per 

 ei ther 

 and Bow 

 he inve 



too sh 

 inated 

 he cone 

 s (-65 



Living 



i t i n 

 ited 

 arate 

 indie 



nowh 

 urfac 

 ases 

 end 



137C 

 tone 

 the r 



thes 

 pecte 

 1) es 



rati 

 pse 

 Cs of 



affe 

 i k e 1 y 

 he pr 



fectl 

 from 



en (1 

 ntory 

 ort t 

 sedim 

 entra 

 mCi -k 

 ston 



, afte 

 in V a r 

 waste 

 ated f 

 ere 1 e 

 e , or 

 (Table 

 f the 

 s. Al 

 Point 

 elease 



e data 

 d from 



timate 

 55Fe 

 f 4 55 



0.406 

 ct Fe 



often 

 f i 1 e 



y wel 1 

 its si 

 979). 

 e s t i m 



incl 

 ents ) 

 t i n d 



-2 



vs 



and Bo 



r res 

 ious 



rel e 

 or th 

 ss th 

 to 1. 



3) i 

 range 

 so ev 

 (abov 

 s fro 



it i 



worl 

 d tha 



to 9 

 Fe ha 



or s 

 and C 



to d 

 of Pu 



be a 

 m i 1 a r 

 or f r 

 ates 

 ude t 

 show 

 ata , 



the 

 wen , 



uspen- 



parts 



ase 



e ratio 



an 50%, 



40 at 



n which 



of its 

 i d e n t is 

 e), 55Fe 

 m the 

 s im- 

 d w i d e 

 t 1962- 

 OSr of 

 1 f-1 i ves 

 . 



s in 

 i s- 



i n 



1 1 r i b u - 

 i ty to 



om i ts 

 (all 



he full 

 1 arge 

 of 55Fe 

 range 

 1979), 



Core 



diffu 



feren 



238PU 



curve 



ati ve 



n u c 1 i 



from 



core 



at th 



conce 



fact , 



stati 



cl ear 



No. 3 



ser r 



t pic 



to 2 



of 2 



ly CO 



de CO 



the r 



shows 



e top 



ntrat 



i s n 



on 2 



ly di 



, aero 

 elease 



ture s 

 39,240 



39,240 

 n t i n u 

 ncentr 

 eactor 

 unusu 

 , or i 

 ion in 

 1 d i s 

 core i 

 f feren 



ss the Mo 

 point fo 

 till. Bo 

 Pu, and t 

 Pu sugges 

 us sedime 

 a t i n s a r 



wastes . 

 al variab 

 n the 7-9 



the 1-2 

 t i n 9 u i s h a 

 n terms o 



t in term 



ntsweag 

 r plant 



th the 

 he cone 



t that 

 nt depo 

 e showi 



The ra 

 i 1 i ty , 



cm sec 

 em sect 

 ble fro 

 f its C 



s of Cs 

 27 



Channel from the present 

 effluent, presents a dif- 

 somewhat elevated ratio 

 entration vs depth-i n-eore 



here we have a site of rel- 

 sition, and that the radio- 

 ng significant contributions 

 tio l34Cs to 137cs in this 

 with no significant 134cs 

 tion, but a substantial 

 ion. This section, in 

 m the upper parts of the 

 s isotope ratio, although 



:Pu, and Pu isotope ratios. 



