naa a22 4500 510764932 CHVBK 20180411083153.0 cr unu---uuuuu 180411e20131101xx s 000 0 eng 10.1134/S0001437013050111 doi (NATIONALLICENCE)springer-10.1134/S0001437013050111 Peculiarities of the rare-earth element distribution in the modern bottom sediments of the White Sea and the lower reaches of the Severnaya Dvina River [Elektronische Daten] [A. Maslov, V. Shevchenko, Yu. Ronkin, O. Lepikhina, A. Novigatsky, A. Filippov, N. Shevchenko] The study of the rare-earth element (REE) systematics in the modern bottom sediments of the White Sea and the lower reaches of the Severnaya Dvina River showed that they were derived by the simple mixing of the detrital material from two geochemically contrasting provenances: the Kola-Karelian geoblock almost completely consisting of Archean rocks and the northwestern Mezen syneclise made up of the Upper Vendian, Paleozoic, and Mesozoic rocks. This is best manifested by the changes in ɛNd(0). In terms of the GdN/YbN and Eu/Eu*, most of the studied samples are comparable with the Post-Archean craton complexes, some of which resemble the average composition of the Archean mudstone. Based on the ΣREE and LaN/YbN, the modern bottom sediments are subdivided into two groups: (1) those close to basalts and granites and (2) those approximating common sedimentary rocks. From the lower reaches of the Pinega River to the Tersky coast, the maximal average (La/Yb)RPSC, (Gd/Yb)RPSC, LaN/YbN, and GdN/YbN ratios were determined in the samples taken at the boundary of Dvina Bay with the Basin, i.e., in the sediments with the highest content of the pelitic component. In general, the geochemical composition of the modern bottom sediments of almost the entire White Sea area was defined by input of the eroded products of the mature continental crust with the Severnaya Dvina River, the main river of the region. Such a setting, when the formation of the sediments in a peri- or intracontinental marine basin is controlled by one large river system, presumably may be propagated to the sedimentation in the Laptev Sea, the eastern Kara Sea, the Bay of Bengal, and other basins. Pleiades Publishing, Inc., 2013 Maslov A. Zavaritsky Institute of Geology and Geochemistry, Urals Branch, Russian Academy of Sciences, Ekaterinburg, Russia aut Shevchenko V. Shirshov Institute of Oceanology, Russian Academy of Sciences, Moscow, Russia aut Ronkin Yu Zavaritsky Institute of Geology and Geochemistry, Urals Branch, Russian Academy of Sciences, Ekaterinburg, Russia aut Lepikhina O. Zavaritsky Institute of Geology and Geochemistry, Urals Branch, Russian Academy of Sciences, Ekaterinburg, Russia aut Novigatsky A. Shirshov Institute of Oceanology, Russian Academy of Sciences, Moscow, Russia aut Filippov A. Shirshov Institute of Oceanology, Russian Academy of Sciences, Moscow, Russia aut Shevchenko N. Geographical Faculty, Moscow State University, Moscow, Russia aut Oceanology Springer US; http://www.springer-ny.com 53/6(2013-11-01), 702-714 0001-4370 53:6<702 2013 53 11491 https://doi.org/10.1134/S0001437013050111 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1134/S0001437013050111 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Maslov A. Zavaritsky Institute of Geology and Geochemistry, Urals Branch, Russian Academy of Sciences, Ekaterinburg, Russia aut NATIONALLICENCE 700 1- Shevchenko V. Shirshov Institute of Oceanology, Russian Academy of Sciences, Moscow, Russia aut NATIONALLICENCE 700 1- Ronkin Yu Zavaritsky Institute of Geology and Geochemistry, Urals Branch, Russian Academy of Sciences, Ekaterinburg, Russia aut NATIONALLICENCE 700 1- Lepikhina O. Zavaritsky Institute of Geology and Geochemistry, Urals Branch, Russian Academy of Sciences, Ekaterinburg, Russia aut NATIONALLICENCE 700 1- Novigatsky A. Shirshov Institute of Oceanology, Russian Academy of Sciences, Moscow, Russia aut NATIONALLICENCE 700 1- Filippov A. Shirshov Institute of Oceanology, Russian Academy of Sciences, Moscow, Russia aut NATIONALLICENCE 700 1- Shevchenko N. Geographical Faculty, Moscow State University, Moscow, Russia aut NATIONALLICENCE 773 0- Oceanology Springer US; http://www.springer-ny.com 53/6(2013-11-01), 702-714 0001-4370 53:6<702 2013 53 11491 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer