108,
|
|
|
q
of
I
|
7
4
HON
bo
9
do:
&
|
3 ©
Pi
Kk
iy
O
TOTAL B-activity
e
gr 90 +90 ACTIVITY
4
7
105}—
—
d/m/g ASHL
$89 + 5-90 pECaY
b=
|4
L.
~
5
f
9
104
>
ee
QO
t/
a
i
Fig. 3.
S
tee vee
th
L' ee
ee
vi
l
100
_.
‘ef
7 T>---lSms
\sr90 decay
.
——
sr89 pecay
|
200
van
DAYS
300
AFTER
400
MAY
14,
SST
n
[954
500
=
—e eo ee
1
600
a
_
700
Radioactivity in Coenobita carapace on successive collection dates compared with the
decay of radiostrontium. Values in disintegrations per minute per gram of ash.