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On the Transformation of the Chemical Composition of Seawater in Interaction with Terrigenous Aerosols

  • MARINE CHEMISTRY
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Abstract

Transformation of the chemical composition of seawater upon interaction with loess, an analog of natural terrigenous aerosols of the Pleistocene, was studied experimentally. It was shown that this process leads to a change in the concentrations of major ions (K, Ca, SO4, and HCO3), nutrients (Si and P), and fluorine, while the chloride, sodium, and magnesium contents do not vary due to their high concentrations in seawater. With increasing weight fraction of the solid phase, the sulfate and hydrocarbonate concentrations increase, while the potassium concentration decreases. The calcium and fluorine concentrations either increase or decrease depending on the content of mobile forms of these elements in the samples. The release of silicon and phosphorus into seawater has an asymptotic limit: 2.5–3.3 mg Si/L and 0.012–0.040 mg P/L. The relationship between the change in concentrations of studied components in seawater and the weight fraction of the solid phase corresponds to a hyperbolic function, but with a relatively small weight fraction, it is described by a linear equation, in which the angular coefficient has a positive correlation with the concentration of the component in an aqueous extract from this loess sample. A change in seawater composition upon interaction with loess can be predicted from the composition of their aqueous extracts.

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REFERENCES

  1. A. P. Vinogradov, Introduction into Geochemistry of the Ocean (Nauka, Moscow, 1967) [in Russian].

    Google Scholar 

  2. N. V. Komarova and Ya. S. Kamentsev, User’s Guide for Capillary Electrophoresis KAPEL (Veda, St. Petersburg, 2006) [in Russian].

    Google Scholar 

  3. V. N. Konishchev, “New studies of genesis of loess minerals,” Inzh. Geol., No. 5, 22–36 (2015).

  4. N. I. Kriger, Loess: Properties and Relation with Geographic Environment (Nauka, Moscow, 1965) [in Russian].

    Google Scholar 

  5. Yu. Yu. Lur’e, Unified Water Analysis Methods (Khimiya, Moscow, 1971) [in Russian].

    Google Scholar 

  6. V. S. Savenko, Introduction into Ionometry of Natural Waters (Gidrometeoizdat, Leningrad, 1986) [in Russian].

    Google Scholar 

  7. V. S. Savenko and A. V. Savenko, Experimental Study of Low Temperature Geochemical Processes (GEOS, Moscow, 2009) [in Russian].

    Google Scholar 

  8. W. S. Broecker, “Abrupt climate change: causal constraints provided by the paleoclimate record,” Earth-Sci. Rev. 51 (1–4), 137–154 (2000).

    Article  Google Scholar 

  9. B. Herut, R. Collier, and M. D. Krom, “The role of dust in supplying nitrogen and phosphorus to the Southeast Mediterranean,” Limnol. Oceanogr. 47 (3), 870–878 (2002).

    Article  Google Scholar 

  10. H. B. Maring and R. A. Duce, “The impact of atmospheric aerosols on trace metal chemistry in open ocean surface seawater, 1. Aluminum,” Earth Planet. Sci. Lett. 84 (4), 381–392 (1987).

    Article  Google Scholar 

  11. A. Nenes, M. D. Krom, N. Mihalopoulos, et al., “Atmospheric acidification on mineral aerosols: a source of bioavailable phosphorus for the oceans,” Atmos. Chem. Phys. 11 (13), 6265–6272 (2011).

    Article  Google Scholar 

  12. F. Solmon, P. Y. Chuang, N. Meskhidze, and Y. Chen, “Acidic processing of mineral dust iron by anthropogenic compounds over the north Pacific Ocean,” J. Geophys. Res.: Atmos. 114 (2), D02305 (2009).

    Article  Google Scholar 

  13. C.-E. Thuróczy, M. Boye, and R. Losno, “Dissolution of cobalt and zinc from natural and anthropogenic dusts in seawater,” Biogeosciences 7 (6), 1927–1936 (2010).

    Article  Google Scholar 

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Funding

This study was supported by the Russian Foundation for Basic Research, project no. 18-05-01133.

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Correspondence to A. V. Savenko.

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Translated by A. Bobrov

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Savenko, A.V., Savenko, V.S. On the Transformation of the Chemical Composition of Seawater in Interaction with Terrigenous Aerosols. Oceanology 60, 742–747 (2020). https://doi.org/10.1134/S0001437020050215

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  • DOI: https://doi.org/10.1134/S0001437020050215

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