Hostname: page-component-8448b6f56d-gtxcr Total loading time: 0 Render date: 2024-04-24T19:13:01.508Z Has data issue: false hasContentIssue false
  • English
  • Français

Uptake of Cd from seawater by calcite

Published online by Cambridge University Press:  05 July 2018

J. Carneiro ,
H. Stoll  and
M. Prieto
J. Carneiro*
Affiliation:
Departamento de Geología, Universidad de Oviedo, C/ Jesús Arias de Velasco s/n, 33005 Oviedo, Spain
H. Stoll
Affiliation:
Departamento de Geología, Universidad de Oviedo, C/ Jesús Arias de Velasco s/n, 33005 Oviedo, Spain
M. Prieto
Affiliation:
Departamento de Geología, Universidad de Oviedo, C/ Jesús Arias de Velasco s/n, 33005 Oviedo, Spain
*
*E-mail: joana@geol.uniovi.es
Get access Rights & Permissions [Opens in a new window]

Abstract

Experimental geochemical studies have shown the effectiveness of Cd removal from freshwaters by sorption onto calcite and aragonite. The strong affinity of Cd for these minerals suggests that a similar inorganic uptake could take place in the oceans. In this study, we have carried out sorption experiments by reacting calcite particles with Cd-enriched artificial seawater. Cadmium concentrations in solution were determined by ICP-AES. Salinity-normalized Cd concentrations showed an average net decrease of 30%. Depending on several factors, this inorganic uptake could influence the seawater concentrations of Cd in certain locations, and even contribute to a natural regulation of the concentration of this metal in the oceans.

Type
Research Article
Information
Mineralogical Magazine , Volume 72 , Issue 1 , February 2008 , pp. 389 - 392
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 2008

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Bruland, K.W. (1980) Oceanographic distributions of cadmium, zinc, nickel, and copper in the North Pacific. Earth and Planetary Science Letters, 47, 176–198.CrossRefGoogle Scholar
Carneiro, J., Prieto, M. and Stoll, H. (2007) Saturation state of seawater with respect to the otavite-calcite solid solution. Geochimica et Cosmochimica Ada, 71, A146.Google Scholar
Chester, R. (2003) Marine Geochemistry. Blackwell Publishing Company, Oxford, UK.Google Scholar
Chiarello, R.P., Sturchio, N.C., Grace, J.D., Geissbuhler, P., Sorensen, L.B., Cheng, L. and Xu, S. (1997) Otavite-calcite solid solution formation at the calcite-water interface studied in situ by synchrotron X-ray scattering. Geochimica et Cosmochimica Ada, 61, 1467–1474.CrossRefGoogle Scholar
Pérez-Garrido, C, Fernández-Diaz, L., Pina, CM. and Prieto, M. (2007) In situ AFM observations of the interaction between calcite (10–14) surfaces and Cd-bearing aqueous solutions. Surface Science, 601, 5499–5509.CrossRefGoogle Scholar
Prieto, M., Cubillas, P. and Fernandez-Gonzalez, A. (2003) Uptake of dissolved Cd by biogenic and abiogenic aragonite: a comparison with sorption onto calcite. Geochimica et Cosmochimica Ada, 67, 3859–3869.CrossRefGoogle Scholar
Tesoriero, AJ. and Pankow, J.F. (1996) Solid solution partitioning of Sr2+, Ba2+, and Cd2+ to calcite. Geochimica et Cosmochimica Ada, 60, 1053–1063.CrossRefGoogle Scholar
van Green, A., Adkins, J.F., Boyle, E.A., Nelson, C.H. and Palanques, A. (1997) A 120 yr record of widespread contamination from mining of the Iberian pyrite belt. Geology, 25, 291–294.Google Scholar