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  1. H150 博物館
  2. H150b 紀要
  3. 名古屋大学博物館報告
  4. 23

Relative REE abundances of porewater in Pacific pelagic sediment: estimation by equilibrium calculations based on REE composition of Mn-oxide and apatite components

https://doi.org/10.18999/bulnum.023.01
https://doi.org/10.18999/bulnum.023.01
5d2b70d4-bdb3-48ec-b89f-0a76da6f3911
名前 / ファイル ライセンス アクション
bulnum_23_1.pdf bulnum_23_1.pdf (1.4 MB)
Item type 紀要論文 / Departmental Bulletin Paper(1)
公開日 2009-09-16
タイトル
タイトル Relative REE abundances of porewater in Pacific pelagic sediment: estimation by equilibrium calculations based on REE composition of Mn-oxide and apatite components
言語 en
著者 TAKEBE, Masamichi

× TAKEBE, Masamichi

WEKO 31590

en TAKEBE, Masamichi

Search repository
YAMAMOTO, Koshi

× YAMAMOTO, Koshi

WEKO 31591

en YAMAMOTO, Koshi

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
キーワード
主題Scheme Other
主題 REE composition
キーワード
主題Scheme Other
主題 Porewater
キーワード
主題Scheme Other
主題 Pelagic sediment
キーワード
主題Scheme Other
主題 Equilibrium calculation
抄録
内容記述 In order to reveal REE mobilization in sediment during early diagenesis, we estimate the REE composition of porewater in Pacific sediments deposited in the Equatorial area. The Pacific sediment was divided chemically into leachate 1 (extracted by alkaline Na_2S_2O_4), leachate 2 (extracted by 0.17 M HCl) and residue. The leachate 1, leachate 2 and residue consist mainly of Mn oxide, carbonate fluorapatite (CFA), and detrital materials, respectively. The Mn oxide and CFA component are considered to provide information about REE composition of porewater. Assuming that Mn oxide and CFA in the sediment were in chemical equilibrium with the porewater in terms of REE, the REE composition (REE/Gd ratio) of the porewater in the sediment was estimated from the REE abundance of the leachate 1 and 2. The estimated REE pattern (REE/Gd ratio) of the porewater shows La depletion and Ce enrichment relative to the deep-seawater. The difference of REE composition between deep-seawater and porewater suggests that REE in pelagic sediment is mobilized during early diagenesis.
言語 en
内容記述タイプ Abstract
出版者
言語 ja
出版者 名古屋大学博物館
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/bulnum.023.01
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 13468286
書誌情報 ja : 名古屋大学博物館報告

巻 23, p. 1-12, 発行日 2007-12-25
フォーマット
application/pdf
著者版フラグ
値 publisher
URI
識別子 http://hdl.handle.net/2237/12208
識別子タイプ HDL
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