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  1. B100 理学部/理学研究科
  2. B100b 紀要
  3. The Journal of earth and planetary sciences
  4. 46

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.46.1
7efc21ab-ce47-4f06-9670-841738f3f343
名前 / ファイル ライセンス アクション
KJ00000037598.pdf KJ00000037598.pdf (881.5 kB)
Item type 紀要論文 / Departmental Bulletin Paper(1)
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

WEKO 3338

en Ohta, Atsuyuki

Search repository
Naito, Koh

× Naito, Koh

WEKO 3339

en Naito, Koh

Search repository
Okuda, Yoshihisa

× Okuda, Yoshihisa

WEKO 3340

en Okuda, Yoshihisa

Search repository
Kawabe, Iwao

× Kawabe, Iwao

WEKO 3341

en Kawabe, Iwao

Search repository
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
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
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