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Geochemical characteristics of Antarctic deep-sea ferromanganese nodules from highly oxic deep-sea water
https://doi.org/10.18999/joueps.46.1
https://doi.org/10.18999/joueps.46.17efc21ab-ce47-4f06-9670-841738f3f343
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
KJ00000037598.pdf (881.5 kB)
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| Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||
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| 公開日 | 2006-01-05 | |||||
| タイトル | ||||||
| タイトル | Geochemical characteristics of Antarctic deep-sea ferromanganese nodules from highly oxic deep-sea water | |||||
| 言語 | en | |||||
| 著者 |
Ohta, Atsuyuki
× Ohta, Atsuyuki× Naito, Koh× Okuda, Yoshihisa× Kawabe, Iwao |
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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 | |||||
| 抄録 | ||||||
| 内容記述 | Six samples of ferromanganese nodules taken from a knoll and a seamount off Wilkes Land, Antarctica, have been analyzed by ICP-AES and their geochemical characteristics have been compared with those of Pacific nodules. The Antarctic nodules have slightly concentric structures with rough surface texture similar to those of early diagenetic Pacific ferromanganese nodules. However, mineralogy, transition metal contents (Mn, Fe, Ni and Cu) and the rare earth element (REE) patterns, suggest that the Antarctic nodules are more similar to hydrogenous Pacific ferromanganese nodules. The Antarctic nodules have higher values of positive Ce anomalies and Co/(Ni+Cu) ratios, but have lower Mn, P, Ni, Cu and V contents than hydrogenous type Pacific nodules. In addition, the Mn content correlates with the Co content in the Antarctic nodules. These features suggest that the Antarctic nodules contain hardly any diagenetic component. This is possibly related to the fact that all Antarctic samples were collected above the CCD. In the Antarctic Ocean, biogenic productivity is generally high, but most of the organic material is decomposed before it reaches the sediment because of the high oxygen content of the water column in the Antarctic Ocean. The Antarctic samples represent more hydrogenous materials even when compared with the hydrogenous nodules from the Pacific Ocean. | |||||
| 言語 | en | |||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | ||||||
| 内容記述 | 国立情報学研究所で電子化したコンテンツを使用している。 | |||||
| 言語 | ja | |||||
| 内容記述タイプ | Other | |||||
| 出版者 | ||||||
| 言語 | en | |||||
| 出版者 | Dept. of Earth and Planetary Sciences, Nagoya University | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| 資源タイプ | ||||||
| 資源 | http://purl.org/coar/resource_type/c_6501 | |||||
| タイプ | departmental bulletin paper | |||||
| 出版タイプ | ||||||
| 出版タイプ | VoR | |||||
| 出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
| ID登録 | ||||||
| ID登録 | 10.18999/joueps.46.1 | |||||
| ID登録タイプ | JaLC | |||||
| ISSN（print） | ||||||
| 収録物識別子タイプ | PISSN | |||||
| 収録物識別子 | 0919875X | |||||
| 書誌情報 |
en : The Journal of earth and planetary sciences, Nagoya University 巻 46, p. 1-13, 発行日 1999-12 |
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| フォーマット | ||||||
| application/pdf | ||||||
| 著者版フラグ | ||||||
| 値 | publisher | |||||
| URI | ||||||
| 識別子 | http://hdl.handle.net/2237/2843 | |||||
| 識別子タイプ | HDL | |||||
