151
this, the plutoniun in the sample may not hava equilibrated with the
tracer end the absolute concentrations of é
30+246
4G5 u and 238 Pu
measured were considerec suspect end only the ratio of the two isotopes
was used.
This was Gone only because no additional sanole remained easily
accessible anda no ctner analysis were available for data.
In the case of
o3k
‘
.
these two sanptes, the SE concentration was celculated as explained above,
only the
239+2405
hn
and
239+240,
236
Pu/"~~Pu measurements were obtained from
different subsamples of the original whole sediment s2mole.
.
z4
.
-
The concentrations of mar are also shown in Appendix Teble §.
The concentrations of
2075, W55ey, > 137 Cs and 60 Ca measured in surface
210_,.
The concentrations of
measurec are shown in App2ndix Table 7.
The methods and errors associatec
with the results shown are explained in section 4.3.
Po
¢210
sediments ara shown in Appendix Tahle 6.
.
Pb)