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Table 4 Percentages of Zn (DZn) and Pb (DPb) dissolved in seawater relative to the initial sulfide sample

From: Onboard experiment investigating metal leaching of fresh hydrothermal sulfide cores into seawater

   

DZn (%)

DPb (%)

  

DZn (%)

DPb (%)

CKL-1

Anoxic

5 °C

0.0036

0.0053

Oxic

5 °C

0.0015

0.0038

20 °C

0.0050

0.0077

20 °C

0.0035

0.0067

CKL-2

Anoxic

5 °C

0.12

0.026

Oxic

5 °C

0.047

0.015

20 °C

0.15

0.049

20 °C

0.018

0.021

CKL-3

Anoxic

5 °C

0.11

0.98

Oxic

5 °C

0.35

1.2

20 °C

0.19

2.3

20 °C

1.1

4.1

CKL-4

Anoxic

5 °C

0.11

0.063

Oxic

5 °C

0.25

0.079

20 °C

0.14

0.17

20 °C

0.42

0.28

  1. These values for all samples were calculated from the Zn and Pb concentrations in the seawater after reaction for 18 h because the pH of the CKL-4 solution decreased greatly to 4.5 under oxic conditions at 20 °C during 18–30 h and dissolution of Zn and Pb was greatly promoted under these conditions