Dynamics of the Biogeochemical Composition of the Sediments from Marine Part of the Marginal Filter under the Influence of the Razdol’naya River Runoff (Amur Bay, Sea of Japan)

• Published in: Geochemistry international Vol. 59; no. 12; pp. 1181 - 1187
• Main Author: Polyakov, D. M.
• Format: Journal Article
• Language: English
• Published: Moscow Pleiades Publishing 01-12-2021; Springer; Springer Nature B.V
• Subjects: Analysis; Annual runoff; Bottom sediments; Cadmium; Chromium; Clay; Clay minerals; Copper; Earth and Environmental Science; Earth Sciences; Geochemistry; Heavy metals; Hurricanes; Iron; Lead; Manganese; Metals; Minerals; Molybdenum; Particulate matter; River discharge; River flow; Rivers; Runoff; Sediment; Sediments; Sediments (Geology); Silicon; Suspended particulate matter; Tin; Typhoons; Zinc; Zooplankton; clay minerals; sorption on Fe and Mn oxyhydroxides; bioaccumulation of elements
• ISSN: 0016-7029; 1556-1968
• DOI: 10.1134/S0016702921120041

The contents of Si, Fe, Mn, K, P, V, Cr, Co, Ni, Pb, Cu, Zn, Cd, As, Sn, Mo, Li, Rb, Cs, Sc, Ga, Y, Hf, Ta, Nb, Th, U, С
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, and clay minerals (HM, CHL, SM) were analyzed in the subcolloid fraction of bottom sediments (BS) from the marine part of the Razdol’naya River marginal filter, which were sampled during average annual (2014) and elevated (typhoon, 2015) river runoff. It was revealed that suspended particulate matter feeding Amur Bay comes from the river with the high contents of HS (after the typhoon) and from Uglovoi Bay with high SM (average annual river runoff). The typhoon provides two times higher HM influx in the bay compared to that of the average annual river runoff. An increase of element contents is related to the sorption on clay minerals (HM, SM) and newly formed Fe, Mn oxyhydroxides (heavy metals, HM. As well as U and Th), as well as to the accumulation by marine phyto- and zooplankton (Mo, As, P).