68
Peter Stille and Graham Shields
o
CO
-11
-12
-13
-14
-15
OW Zelter
9
I
t
i
i
,
t
9
i
1
.
.
~
9
i
J
t
f
1
|
9
9
9
i
i
t
i
1980
1981
1982
Fig. 4.16. Variation in 5180 in groundwater and Danube river water from 1979-1982.
(Stichler et al. 1986)
o
tO
-I1
-13 F
~ i
-14
r
I
,
~ t
t ~
t x
* L
i
~
~
I
t
I
I
I
I
i
'
|
'
9
"
9
'
1980
1981
1982
Fig. 4.17. Variation in 5180 in the groundwater of one of the observation wells from 19791982. (Stichler et al. 1986)