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Hafnium profile data

Pacific Ocean 45° 00' N, 164° 55' E

Atlantic Ocean Omex 8, ~48° N, ~15° W

Depth (m)

Hf (pmol/kg)

Depth (m)

Hf (pmol/kg)

0

0.10

50

0.41

21

0.16

250

0.46

30

450

0.62

41

0.12

750

0.67

59

0.18

1175

0.7

87

1575

0.8

112

0.21

2050

0.85

136

0.17

2400

1

155

0.25

3100

0.75

175

0.15

3450

0.77

200

0.17

3800

0.68

301

4150

408

0.22

4500

0.71

502

601

0.28

799

0.38

1009

0.27

1217

0.38

1507

0.33

2024

0.32

2529

0.32

3027

0.73

4037

0.77

5054

0.85

Sohrin, Y., Fujishima, Y., Ueda, K., Akiyama, S., Mori, K., Hasegawa, H. nd Matsui, M., 1998.

Dissolved niobium and tantalum in the North Pacific. Geophys. Res. Lett. 25: 999-1002.

Godfrey, L. V., White, W. M., and Salters, V. J. M., 1996. Dissolved zirconium and hafnium

distributions across a shelf break in the northeastern Atlantic Ocean. Geochim. Cosmochim.

Acta 60: 3995-4006.