Format:
360 S. : Ill., graph. Darst., Kt.
ISBN:
5020337455
Content:
This monograph is devoted to modern considerations on geochemistry of rare earth elements (REE) in the ocean. Chemical properties of REE which determine their migration ability in natural processes and REE sources are presented. The REE behavior in the river water-seawater mixing zone is analyzed, as well as fractionation of dissolved and particulate REE in the oceanic water in both aerobic and anaerobic conditions. It is shown that the variability of REE composition in pelagic sediments reflects their fractionation in oceanic water, as a consequence of material differentiation in the ocean. REE distribution in terrigenous, authigenic, hydrothermal and biogenic constituents of sediments is considered, including clay minerals, bone debris, barite, phillipsite, iron and manganese oxyhydroxides (ferromanganese nodules and micronodules), iron-calcium hydroxophosphate, diatoms and foraminifers. For geologists, geochemists and oceanologists.
Note:
In kyrill. Schr. - Mit engl. Zsfassung
Language:
Russian
