Disintegration rates (d/m/z) of the radioisotopes separated from five plankton
samples on ta) date of analysis (July 1957) and (B) corrected to date of
collection (September 1956).
I
Isotope
II
Plankton
Plankton
(7,8,9)
A
(23,14,15)
B
A
B
6,800
522
13,420
0
0
20 trace
Q
0
trace
Rut%_pnl06 1,100 1,939
Zr29-Nb?>
266
gr89-90
¢si37
Mn>4
0
0
cel t_ppl44
G07 1,275
10
III
0
0
9
*
)
*
IV
Plankton
(43 44,45, 46)
A
0
B
0
460
11,800
Q
136
137
0
5,940 12,500
139
o7h
Feo?
4,360
5,300
4,880
5,860
10,000
12,000
~ Cont
- C098
1,240
242
2,720
8,100
1,180
249
2,600
4,200
6,700
1,450
14,700
24,500
- Fe59
1900
tzn65
0
0
O
2,182
249
203
2,100 4,900 1,830
* Not determined
0
231
4,200
0
0
1,090 1,240
7,120 16,400
v
Plankton
(50,51, 52,53)
A
0
B
0
350 8,960
2,500 5,250
0
229
109
0
234
~—s_«-228
15,100 18,100
0
1,822
421
0
4,000
7,110
458
§22
9,200 21,200
Plankton
(57,58, 59)
A
B
0
0
82
2,190
52
9
0
102
11,900
14,300
628
125
1,700
2,110
*
3
0
0
*
0
312
356
7,050 16,200
-cT-
Table 2.