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Zr profile data

Pacific Ocean 16° 27'n, 168° 29' W

Atlantic Ocean Omex 8, ~48° N, ~15° W

Depth (m)

Zr (pmol/kg)

Depth (m)

Hf (pmol/kg)

25

25.1

50

81.1

50

30.2

250

85

100

15.5

450

110.8

254

32.5

750

125.1

306

41.6

1175

136.5

511

80.0

1575

136.1

700

111

2050

151.6

900

126

2400

165.9

1200

146

3100

159.7

1505

178

3450

178.5

2300

200

3800

164.6

2800

234

4150

159.9

4038

295

4500

167.6

McKelvey, B., and Orians, K. J., 1993. Dissolved zirconium in the North Pacific Ocean

Geochim. Cosmochim. Acta 57: 3801-3805.

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.