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Fate of copper complexes in hydrothermally altered deep-sea sediments from the Central Indian Ocean Basin.

DRS at CSIR-National Institute of Oceanography

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Title Fate of copper complexes in hydrothermally altered deep-sea sediments from the Central Indian Ocean Basin.
 
Creator Chakraborty, P.
Sander, S.G.
Jayachandran, S.
Nath, B.N.
Nagaraju, G.
Chennuri, K.
Vudamala, K.
Lathika, N.
Mascarenhas-Pereira, M.B.L.
 
Subject sediments
hydrothermal alteration
sequential extraction
kinetic extraction method
 
Description The current study aims to understand the speciation and fate of Cu complexes in hydrothermally altered sediments from the Central Indian Ocean Basin and assess the probable impacts of deep-sea mining on speciation of Cu complexes and assess the Cu flux from this sediment to the water column in this area. This study suggests that most of the Cu was strongly associated with different binding sites in Fe-oxide phases of the hydrothermally altered sediments with stabilities higher than that of Cu-EDTA complexes. The speciation of Cu indicates that hydrothermally influenced deep-sea sediments from Central Indian Ocean Basin may not significantly contribute to the global Cu flux. However, increasing lability of Cu-sediment complexes with increasing depth of sediment may increase bioavailability and Cu flux to the global ocean during deep-sea mining.
 
Date 2014-09-07T10:42:22Z
2014-09-07T10:42:22Z
2014
 
Type Journal Article
 
Identifier Environmental Pollution, vol.194; 2014; 138-144.
no
http://drs.nio.org/drs/handle/2264/4596
 
Language en
 
Relation Environ_Pollut_194_138.jpg
 
Rights An edited version of this paper was published by Elsevier. Copyright [2014] Elsevier
 
Publisher Elsevier