Rare Earth Elements in the Southern Ocean: The Significance of West Antarctic Melting

Basak Chandranath; Johnson Laura; Sherrell Robert; Herbert Lisa; Steffen Janelle; Fitzsimmons Jessica; Chinni Venkatesh

doi:10.14862/geochemproc.72.0_46

2025年度日本地球化学会第72回年会講演要旨集

DOI https://doi.org/10.14862/geochemproc.72.0_46

会議情報

主催: 日本地球化学会年会要旨集

会議名: 2025年度日本地球化学会第72回年会講演要旨集

回次: 72

開催日: 2025/09/07 - 2025/09/19

G3 海洋の地球化学

Rare Earth Elements in the Southern Ocean: The Significance of West Antarctic Melting

*Basak Chandranath, Johnson Laura, Sherrell Robert, Herbert Lisa, Steffen Janelle, Fitzsimmons Jessica, Chinni Venkatesh

著者情報

キーワード: Polar Oceanography, Rare Earth Elements, Biogeochemical Cycles

会議録・要旨集フリー

p. 46-

詳細

抄録

Changes in global climate have accelerated ice loss in Antarctica, where the highest melt rates are found in the Amundsen Sea (AS), West Antarctica. Ice mass loss results from the incursion of relatively warm modified Circumpolar Deep Water (mCDW), which flows under the fringing ice shelves, including the Dotson Ice Shelf (DIS). Here, we report dissolved REE concentrations, with an emphasis on Nd, and Nd isotopes from nine stations located off of the DIS. We show REE enrichment near between ~ 300-400 meters, within the depth range of maximum outflow velocities and meltwater fractions. This implications has significance in the context of REE contribution from Antarctic glacial melting.

責任著者(Corresponding author)

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