Heavy metals in the benthic animals from hydrothermal vents: Results of neutron activation analysis |
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Authors: | I P Shmelev A A Kuznetsov S V Galkin |
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Institution: | (1) Shirshov Institute of Oceanology, Russian Academy of Sciences, Moscow, Russia |
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Abstract: | A series of samples of inhabitants of hydrothermal vents were collected during the 12th cruise of R/V Akademik Mstislav Keldysh in Guaymas Basin (the Gulf of California) and the Axial Seamount area (Juan de Fuca Ridge). The concentrations of trace and heavy metals in the tissues of Ridgeia piscesae, Riftia pachyptila, and Paralvinella palmiformis were analyzed. The neutron-activation analysis revealed significantly higher concentrations of uranium in the tissues of Paralvinella palmiformis as compared to the ambient seawater. The possible reasons for such phenomenon are discussed. The data obtained by the neutron-activation method are compared with those obtained by the atomic-absorption method for the same tissues analyzed. |
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