The study reveals the distribution of contents of major (Si, Al, Fe, Mn) and trace elements (Ga, V, W, Th, Mo, U, Be, Y, Cd), С_org, and clay minerals in the subcolloidal fraction of bottom sediments of the marginal filter of the Razdolnaya River (soil, river and marine sediments). Under the influence of increased river discharge as a result of a typhoon, the flocculation zone, the formation of Fe and Mn oxyhydroxides, and the sorption of certain trace element ions (U, Be, Cd, Y) were moved into Amur Bay. An additional increase in the Si content in sediments of the bay associated with biogenic accumulation was revealed, which led to the dilution of terrigenous aluminosilicates and a decrease in the content of trace elements in marine sediments. Compared to river sediments, the Y content was shown to increase by 22, Cd by 80, U by 110, and Mo by 1140% in sediments of stations located near Zolotoi Rog Bay, which is associated with the influence of contaminated soils from “old dumping.”

中文翻译：

---

径流增加对拉兹多纳亚河（日本海阿穆尔湾）边缘滤池底部沉积物胶体部分的主要和微量元素的累积特性

该研究揭示的主要内容（硅，铝，铁，锰）和痕量元素的分布（GA，V，W，Th时，钼，U，BE，Y，Cd）的，С_有机，以及Razdolnaya河边缘过滤器底部沉积物（土壤，河流和海洋沉积物）的底部胶体亚胶体部分中的粘土矿物。在台风导致河流流量增加的影响下，絮凝区，Fe和Mn羟基氧化物的形成以及某些微量元素离子（U，Be，Cd，Y）的吸附被迁移到阿穆尔湾。揭示了与生物成因有关的海湾沉积物中硅含量的进一步增加，这导致了陆源硅铝酸盐的稀释和海洋沉积物中微量元素含量的减少。与河流沉积物相比，位于佐洛托伊罗格湾附近的站点的沉积物中，Y含量增加了22％，Cd增加了80％，U增加了110％，Mo增加了1140％。