Th profile data

decay rate

1.75369E-11

Pacific Ocean 25° 00'n, 169° 55' E

Atlantic Ocean 24° 45' N, 26° 57' W

Depth (m)

230-Th (amol/kg)

dpm/1000kg

Depth (m)

230-Th (amol/kg)

dpm/1000kg

5

13

0.14

1

2.2

0.023

56

25

0.26

603

5.2

0.055

129

21

0.22

1050

4.4

0.047

194

9

0.09

2200

10.6

0.112

289

11

0.12

3000

16.8

0.177

392

13

0.14

4000

19.4

0.205

501

13

0.14

600

24

0.25

784

43

0.45

1197

37

0.39

1686

55

0.58

2989

122

1.29

2989

116

1.22

3996

164

1.73

4984

202

2.13

5513

193

2.04

5896

208

2.20

Nozaki, Y., and Nakanishi, T., 1985. 231-Pa and 230-Th profiles in the open ocean water column.

Deep-Sea Res., 32, 1209-1220.

Mangini, A., and Key, R. M., 1983. A 230Th profile in the Atlantic Ocean.

Earth Planet. Sci. Lett. 62: 377-384.