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Strontium and Nd isotope analysis of the detrital fractions extracted from the marginal sea sediments in the Arctic was applied to examine regional and temporal changes in the inflow and transportation of terrigenous material in the Chukchi and Bering Seas over the past 100 years. Regional distributions of the Sr and Nd isotopes of the surface sediments show higher Sr isotope ratios and lower Nd isotope...
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