Analysis of sedimentation processes in Lake Khanka (Xingkaihu) and Amur Bay using 137Cs and 210Pbex tracers.

Autor:	Kuzmenkova, N., Rozhkova, A., Egorin, A., Tokar, E., Grabenko, E., Shi, K., Petrov, V., Kalmykov, S., Hou, X.
Předmět:	SEDIMENTATION analysis LAKES SEDIMENTATION & deposition SEDIMENTS
Zdroj:	Journal of Radioanalytical & Nuclear Chemistry; Apr2023, Vol. 332 Issue 4, p959-971, 13p, 1 Diagram, 3 Charts, 7 Graphs, 1 Map
Abstrakt:	Sediment cores collected from Lake Khanka (Xingkaihu) and Amur Bay were analyzed for concentrations of 137Cs and 210Pb, along with the detailed mineralogical and elemental composition. The depth distribution and specific activities of 137Cs in the sediment cores indicated that the investigated area is not contaminated. Maximum activity of 137Cs is 10 Bq/kg, and its inventory is 0.16 Bq/m2. Despite some variation in mineralogical profiles, the sedimentation process was uniform over the investigated period. The sedimentation rate in the eastern part of Lake Khanka (Xingkaihu) was estimated to be 1.6 mm/year, and 0.43–0.5 mm/year in Amur Bay. [ABSTRACT FROM AUTHOR]
Databáze:	Complementary Index
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