GEOCHEMISTRY OF RARE-EARTH ELEMENTS IN THE RECENT BOTTOM SEDIMENTS OF AMUR BAY (Japan/East Sea)
K.I. Aksentov, V.V. Sattarova
V.I. Il'ichev Pacific Oceanological Institute, Far Eastern Branch of the Russian Academy of Sciences, Baltiiskaya ul. 43, Vladivostok, 690041, Russia
Keywords: Rare-earth elements, bottom sediments, Amur Bay, Japan/East Sea
Subsection: PETROLOGY, GEOCHEMISTRY, AND MINERALOGY
Abstract
The distribution of REE in the bottom sediments of Amur Bay accumulated over the last 100 years was studied, and the REE contents were evaluated. The REE contents normalized to North American Shale Composite (NASC) show a negative Ce anomaly and a predominance of LREE and MREE. The inflow and accumulation of REE in the bottom sediments are influenced mainly by natural sources, whereas their dependence on anthropogenic factors is minimal.
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