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Rock magnetism of quartz and feldspars chemically separated from pelagic red clay: a new approach to provenance study
https://doi.org/10.24517/00067002
https://doi.org/10.24517/000670028556069d-69f0-46ff-b846-706b86b04bfb
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
SC-PR-USUI-Y-70-153.pdf (1.4 MB)
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| Item type | 学術雑誌論文 / Journal Article(1) | |||||
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| 公開日 | 2022-09-01 | |||||
| タイトル | ||||||
| タイトル | Rock magnetism of quartz and feldspars chemically separated from pelagic red clay: a new approach to provenance study | |||||
| 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 | |||||
| ID登録 | ||||||
| ID登録 | 10.24517/00067002 | |||||
| ID登録タイプ | JaLC | |||||
| 著者 |
Usui, Yoichi
× Usui, Yoichi× Shimono, Takaya× Yamazaki, Toshitsugu |
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| 著者別表示 |
臼井, 洋一
× 臼井, 洋一 |
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| 提供者所属 | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | 金沢大学理工研究域地球社会基盤学系 | |||||
| 書誌情報 |
Earth, Planets and Space 巻 70, 号 1, p. 153, 発行日 2018 |
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| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 1880-5981 | |||||
| NCID | ||||||
| 収録物識別子タイプ | NCID | |||||
| 収録物識別子 | AA11211921 | |||||
| DOI | ||||||
| 関連タイプ | isIdenticalTo | |||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | 10.1186/s40623-018-0918-1 | |||||
| 出版者 | ||||||
| 出版者 | Springer Berlin Heidelberg | |||||
| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | Magnetic mineral inclusions in silicates are widespread in sediments as well as in igneous rocks. Because they are isolated from surrounding environment, they have potential to preserve original magnetic signature even in chemically altered sediments. Such inclusions may provide proxies to help differentiating the source of the host silicate. We measure magnetism of quartz and feldspars separated by chemical digestion of pelagic red clay. The samples are from the upper 15 m of sediments recovered at Integrated Ocean Drilling Program Site U1366 in the South Pacific Gyre. The quartz and feldspars account for 2.3–22.7 wt% of the samples. X-ray diffraction analyses detect both plagioclase feldspar and potassium feldspar. Plagioclase is albite-rich and abundant in the top ~ 7.4 m of the core. Potassium feldspar mainly occurs below ~ 10.4 m. The dominance of albite-rich plagioclase differs from a previous investigation of coarser fraction of sediments from the South Pacific. Saturation isothermal remanence (SIRM) intensities of the quartz and feldspars are 7.45 × 10−4 to 1.98 × 10−3 Am2/kg, accounting for less than 1.02% of the SIRM of the untreated bulk samples. The depth variations of the silicate mineralogy and the previously reported geochemical end-member contributions indicate that quartz and/or plagioclase above 8.26 m is likely to be Australian dust. In contrast, the relative abundance and the magnetic properties of quartz and feldspars vary below 10.42 m, without clear correlation with geochemical end-member contributions. We consider that these changes trace a subdivision of the volcanic component. Our results demonstrate that magnetism of inclusions can reveal additional information of mineral provenance, and chemical separation is an essential approach to reveal the environmental magnetic information carried by magnetic inclusions.[Figure not available: see fulltext.]. © 2018, The Author(s). | |||||
| 権利 | ||||||
| 権利情報 | Copyright © The Author(s) 2018. | |||||
| 権利 | ||||||
| 権利情報 | This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. | |||||
| 著者版フラグ | ||||||
| 出版タイプ | VoR | |||||
| 出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
| 関連URI | ||||||
| 識別子タイプ | URI | |||||
| 関連識別子 | https://earth-planets-space.springeropen.com/articles/10.1186/s40623-018-0918-1 | |||||
| 関連名称 | https://earth-planets-space.springeropen.com/articles/10.1186/s40623-018-0918-1 | |||||
| 関連URI | ||||||
| 識別子タイプ | URI | |||||
| 関連識別子 | https://earth-planets-space.springeropen.com/ | |||||
| 関連名称 | https://earth-planets-space.springeropen.com/ | |||||
| 関連URI | ||||||
| 識別子タイプ | URI | |||||
| 関連識別子 | https://www.springeropen.com/ | |||||
| 関連名称 | https://www.springeropen.com/ | |||||
