Abstract
The article analyzes a number of geochemical characteristics (values (La/Yb)N and Eu/Eu*, Th content) of fine-grained silty and silty-pelitic gray silts of the Volga, particulate suspended matter of the Lena and silty-pelitic fraction of Yangtze bottom sediments. It has been established that in almost all cases, the indicated parameters of the lanthanide spectra normalized to chondrite and the Th content turn out to be comparable with their values determined for specially prepared (removal of non-terrigenous carriers of rare earth elements – carbonate minerals, Fe-Mn oxyhydroxides and organic components) pelitic fractions of bottom sediments deposited near the mouths of the named major rivers, and remain so thousands of kilometers up from their deltas/mouths. The regulation of the Volga and Yangtze flows does not have a significant impact on the parameters of particulate suspended matter and bottom sediments we are considering.
Published Version
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