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Rare earth element geochemistry of Lake Baikal sediment : Its implication for geochemical response to climate change during the Last Glacial/Interglacial Transition

https://hiroshima.repo.nii.ac.jp/records/2008734
https://hiroshima.repo.nii.ac.jp/records/2008734
67c591b5-080d-4173-8864-effc85afbb49
名前 / ファイル ライセンス アクション
QSR_26-9-10_1362.pdf QSR_26-9-10_1362.pdf (362.0 KB)
Item type デフォルトアイテムタイプ_(フル)(1)
公開日 2023-03-18
タイトル
タイトル Rare earth element geochemistry of Lake Baikal sediment : Its implication for geochemical response to climate change during the Last Glacial/Interglacial Transition
言語 en
作成者 Tanaka, Kazuya

× Tanaka, Kazuya

en Tanaka, Kazuya

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Akagawa, Fuminori

× Akagawa, Fuminori

en Akagawa, Fuminori

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Koshi, Yamamoto

× Koshi, Yamamoto

en Koshi, Yamamoto

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Tani, Yukinori

× Tani, Yukinori

en Tani, Yukinori

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Kawabe, Iwao

× Kawabe, Iwao

en Kawabe, Iwao

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Kawai, Takayoshi

× Kawai, Takayoshi

en Kawai, Takayoshi

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アクセス権
アクセス権 open access
アクセス権URI http://purl.org/coar/access_right/c_abf2
権利情報
権利情報 Copyright (c) 2007 Elsevier Ltd
主題
主題Scheme NDC
主題 450
内容記述
内容記述 Sediments deposited on the bottom of Lake Baikal have contributed to the understanding of a long-term environmental history of continents. Rare earth elements (REEs) along with major elements and loss on ignition (LOI) of Baikal sediments were determined with the aim of evaluating their suitability for a new paleoenvironmental proxy. Our interest is concentrated on paleoenvironmental change during the Last Glacial/Interglacial Transition (LGIT). Chondrite-normalized REE patterns for Baikal sediments show a similar variation to those for typical upper continental crustal materials. Three parameters of (La/Yb)n (n: chondrite-normalized value) ratio, ΣREE/TiO2 and Eu anomaly were used to express detailed characteristics of Baikal sediments. Depth profile of (La/Yb)n ratio shows abrupt change, whose timing corresponds to the beginning of climatic warming inferred from the profiles of SiO2/TiO2 and LOI. In addition, (La/Yb)n ratio, ΣREE/TiO2 and the degree of Eu anomaly correlate with each other. This suggests that inflow process of particulate materials into the lake may have changed during the Last Glacial/Interglacial Transition. The analytical results of this study lead to the conclusion that REE are a useful paleoenvironmental proxy in the Baikal region.
言語 en
出版者
出版者 Pergamon-Elsevier Science Ltd.
言語
言語 eng
資源タイプ
資源タイプ識別子 http://purl.org/coar/resource_type/c_6501
資源タイプ journal article
出版タイプ
出版タイプ AO
出版タイプResource http://purl.org/coar/version/c_b1a7d7d4d402bcce
関連情報
識別子タイプ DOI
関連識別子 10.1016/j.quascirev.2007.02.004
関連情報
識別子タイプ DOI
関連識別子 http://dx.doi.org/10.1016/j.quascirev.2007.02.004
収録物識別子
収録物識別子タイプ ISSN
収録物識別子 0277-3791
収録物識別子
収録物識別子タイプ NCID
収録物識別子 AA10627786
開始ページ
開始ページ 1362
書誌情報 Quaternary Science Reviews
Quaternary Science Reviews

巻 26, 号 9-10, p. 1362-1368, 発行日 2007-05
旧ID 20655
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