Distribution of Cu, Mn and Ni in the porewater of sediment in China Pioneer Area, northeast Pacific

NI Jian-yu; GRUPE Bernd; MAGGIULLI Michael; ZHOU Huai-yang

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NI Jian-yu, GRUPE Bernd, MAGGIULLI Michael, ZHOU Huai-yang. Distribution of Cu, Mn and Ni in the porewater of sediment in China Pioneer Area, northeast Pacific[J]. Haiyang Xuebao, 2003, 25(2): 42-47.

Citation:

NI Jian-yu, GRUPE Bernd, MAGGIULLI Michael, ZHOU Huai-yang. Distribution of Cu, Mn and Ni in the porewater of sediment in China Pioneer Area, northeast Pacific[J]. Haiyang Xuebao, 2003, 25(2): 42-47.

NI Jian-yu, GRUPE Bernd, MAGGIULLI Michael, ZHOU Huai-yang. Distribution of Cu, Mn and Ni in the porewater of sediment in China Pioneer Area, northeast Pacific[J]. Haiyang Xuebao, 2003, 25(2): 42-47.

Citation:

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Distribution of Cu, Mn and Ni in the porewater of sediment in China Pioneer Area, northeast Pacific

Received Date: 2001-07-30
Rev Recd Date: 2001-10-11

Abstract

Abstract

Porewater samples from China Pioneer Area have been analyzed for manganese, copper and nickel.The results show that the Mn is markedly affected by sediment environment, and its content varied between 0.16 and 8.61μg/dm³.However, Copper and Ni are related to the primary production in surface seawater.The contents of Cu and Ni in porewater are 0.16-20.8μg/dm³ and 0.80-3.12μg/dm³ respectively.All of these elements show a pronounced maximum concentration gradients just at the sediment/water interface.Based on calculation using the Ficlk's first law modified for sediment, the Mn flux is mainly from overlying water to sediment, and is the main source of Mn in sediment.But the Cu and Ni fluxes are from sediment to overlying water.Comparing with the Cu and Ni fluxes from surface water to bottom water, the contents of Cu and Ni in bottom water are mainly controlled by sediments.
- trace metals,
- porewater,
- multimetallic nodule area,
- Pacific Ocean

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References(10)

References

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