Open AccessIsotopic composition of Nd, Pb, and Sr in modern bottom sediments of the Barents Sea
Author(s) -
А. В. Маслов,
А. Б. Кузнецов,
Н. В. Политова,
N. V. Kozina,
А. N. Novigatsky,
В. П. Шевченко
Publication year - 2019
Publication title -
doklady akademii nauk. rossijskaâ akademiâ nauk
Language(s) - English
Resource type - Journals
ISSN - 0869-5652
DOI - 10.31857/s0869-5652485171-75
Subject(s) - geology , sedimentary rock , oceanography , sedimentation , continental margin , geochemistry , continental shelf , geomorphology , sediment , paleontology , tectonics
The isotopic characteristics ((Nd, 207Pb/206Pb, and 87Sr/86Sr) of the modern bottom sediments sampled in the Barents Sea during the 67th voyage of the R/V “Akademik Mstislav Keldysh” are considered. It is shown that the major contribution to the formation of the sediments in the central Barents Sea is made by rocks of the North European continental margin, which are found in the zone of influence of the North Cape Current. The values of (Nd, and 87Sr/86Sr are lower in the bottom sediments of this part of the sea than the corresponding characteristics of sedimentary material incorporated into ices and carried by the Transpolar Drift Stream. This allows one to conclude that such material has not contributed much to the sedimentation in the Barents Sea.