234Thorium profile data

Pacific Ocean 28° N, 156° W

Depth (m)

234Th (dpm/L)

238U (dpm/L)

25

2.51

2.50

40

2.31

2.49

50

2.04

2.49

60

1.36

2.48

75

1.60

2.48

90

1.74

2.47

100

1.68

2.47

125

2.28

2.46

150

2.17

2.46

175

2.51

2.45

200

2.30

2.45

250

2.28

2.43

500

2.36

2.41

1000

2.49

2.44

1500

2.04

2.45

Coale, K. H., and Bruland, K. W., 1987. Oceanic stratified zone as

elucidated by 234Th:238U disequilibria. Limnol. Oceanogr. 32: 189-200.