Physical Oceanography, Vol.
1, May, 2011 (Ukrainian Original No.
1, January–February, 2011)
EXPERIMENTAL AND FIELD RESEARCH
SPECIFIC FEATURES OF THE DISTRIBUTION OF HEAVY METALS IN BOTTOM
SEDIMENTS IN THE NORTHEAST PART OF THE BLACK SEA
A. I. Ryabinin,
S. A. Shibaeva,
and E. A. Danilova
We study the distribution of Fe, Mn, Co, Ni, Cu, Zn, Cd, Hg, Ag, and Au in present-day and ancient bot-
tom sediments in the shelf, slope, and deep-trench areas of the northeast part of the Black Sea. The
samples were taken in 1990 in the Crimean, Kerch-Taman, and Caucasian regions. The revealed charac-
ter of the fields of concentration of metals does not allow one to establish exact regularities in the distri-
bution of Mn, Co, and Cu with Fe. It is shown that the values of the ratios of concentrations of metals
increase in the following direction: Au/Cu Zn/Cu Co/Fe Ni/Fe Mn/Fe Hg/Cu Ag/Cu
Cu/Fe. The data on Ag are presented for the first time.
Keywords: Black Sea, bottom sediments, heavy metals, concentrations of Ag and Au.
The results concerning the spatial variability of the fields of concentration of Sc, Y, Zr, La, Ce, Eu, Tb, Hf,
Th, U, Na, K, Rb, Cs, Ca, Ti, Sr, Ba, S, Cl, Br, As, Sb, Ta, Cr, and Mo in bottom sediments in the northeast part
of the Black Sea were obtained earlier with the use of the multielement neutron-activation and X-ray radiometric
methods of analysis of the samples taken by the Marine geological crew of Krymmorgeologia in 1990 [1–3].
In the present work, we give the results of investigation of the fields of concentration of heavy metals Fe,
Mn, Co, Ni, Cu, Zn, Cd, Hg, Ag, and Au, whose monitoring is important in oceanography and ecology due to
the substantial toxicity of most metals dissolved in water in areas of fishery importance [4–7]. According to
their geochemical properties, these metals were classified by Perel’man  into two subgroups of geochemical
group III: the subgroup of iron (Fe, Mn, Co, and Ni) and the subgroup of chalcophile metals (the other six ele-
Methods for Investigation
We investigated 40 samples of bottom sediments taken from present-day Black-Sea, ancient Black-Sea, and
New-Euxine-Sea sediments  in the shelf, slope, and deep-trench areas at 18 stations located in the Crimean
1–11), Kerch–Taman (st.
12, 13, 15), and Caucasian (st.
14, 16–18) regions of the northeast part of the Black
Sea (from Alupka to Gelendzhik). The scheme of location and the numbers of stations are shown in Fig. 1.
The simultaneous analysis of the concentration of the elements under study and some other elements indi-
cated above [1–3] was performed using the multielement neutron-activation method jointly by the Marine Divi-
Ukrainian Hydrometeorological Institute, Marine Division, Sevastopol, Ukraine.
Institute of Nuclear Physics, Academy of Sciences of the Republic of Uzbekistan, Ulugbek, Uzbekistan.
Translated from Morskoi Gidrofizicheskii Zhurnal, No.
67–78, January–February, 2011. Original article submitted June 10, 2009;
revision submitted September 9, 2009.
0928–5105/11/2101–0063 © 2011 Springer Science+Business Media, Inc. 63