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Geochemistry and provenance study of sediments from Krossfjorden and Kongsfjorden, Svalbard (Arctic Ocean)
https://nipr.repo.nii.ac.jp/records/15463
https://nipr.repo.nii.ac.jp/records/1546304d495be-7072-4b1d-849e-1e0026b6f539
Item type | 学術雑誌論文 / Journal Article(1) | |||||
---|---|---|---|---|---|---|
公開日 | 2019-04-03 | |||||
タイトル | ||||||
タイトル | Geochemistry and provenance study of sediments from Krossfjorden and Kongsfjorden, Svalbard (Arctic Ocean) | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Geochemistry and provenance study of sediments from Krossfjorden and Kongsfjorden, Svalbard (Arctic Ocean) | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | Svalbard | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | REE | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | Krossfjorden | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | Kongsfjorden | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | Chemical | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | weathering | |||||
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 | |||||
アクセス権 | ||||||
アクセス権 | metadata only access | |||||
アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
著者 |
Kumar, Pankaj
× Kumar, Pankaj× Pattanaik, J.K.× Khare, N.× Balakrishnan, S. |
|||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Major, trace and rare earth element (REE) concentrations in combination with textural and mineralogical analysis of sediments have been used to understand geochemical fractionation in the sediment due to weathering and subsequent transport in the Svalbard region. Surface sediments from different water depths and a short sediment core have been collected from two fjord system Krossfjorden and Kongfjorden, located between Lat: 78° 50′ to 79° 30’ N and Long: 11°–13° E in the west coast of Svalbard (Arctic Ocean). Bimodal distributions of grain size suggest that the finer size sediments were possibly deposited from the suspended load and coarser size from melting of sea ice and iceberg. Geochemical study reflects that the variation of chemical composition of the sediments is due to first order fractionations of elements during the grain size reduction and subsequent transport. The chemical weathering in the catchment area is incipient and the grain size reduction is dominated by mechanical weathering. REEs are mainly controlled by the presence of less weathered aluminosilicate minerals in these sediments. The source rock composition of the sediments is intermediate between granitic and granodioritic, with negligible contribution from the mafic rocks. | |||||
書誌情報 |
en : Polar Science 巻 18, p. 72-82, 発行日 2018-12 |
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ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 18739652 | |||||
DOI | ||||||
識別子タイプ | DOI | |||||
関連識別子 | https://doi.org/10.1016/j.polar.2018.06.001 | |||||
関連名称 | 10.1016/j.polar.2018.06.001 |