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  1. F300 宇宙地球環境研究所
  2. F300b 紀要
  3. 名古屋大学加速器質量分析計業績報告書
  4. 8

南大洋におけるアルケノン古水温の変動

https://doi.org/10.18999/sumrua.8.81
https://doi.org/10.18999/sumrua.8.81
48ee1d0f-5852-470f-8bb4-420c66d4b14c
名前 / ファイル ライセンス アクション
KJ00000187800.pdf KJ00000187800.pdf (551.1 kB)
Item type 紀要論文 / Departmental Bulletin Paper(1)
公開日 2010-05-18
タイトル
タイトル 南大洋におけるアルケノン古水温の変動
その他のタイトル
その他のタイトル Alkenone sea surface temperatures in the Southern Ocean
著者 池原, 実

× 池原, 実

WEKO 80321

池原, 実

Search repository
Ikehara, minoru

× Ikehara, minoru

WEKO 80322

Ikehara, minoru

Search repository
河村, 公隆

× 河村, 公隆

WEKO 80323

河村, 公隆

Search repository
Kawamura, Kimitaka

× Kawamura, Kimitaka

WEKO 80324

Kawamura, Kimitaka

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大河内, 直彦

× 大河内, 直彦

WEKO 80325

大河内, 直彦

Search repository
Ohkouchi, Naohiko

× Ohkouchi, Naohiko

WEKO 80326

Ohkouchi, Naohiko

Search repository
木元, 克典

× 木元, 克典

WEKO 80327

木元, 克典

Search repository
Kimoto, Katsunori

× Kimoto, Katsunori

WEKO 80328

Kimoto, Katsunori

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村山, 雅史

× 村山, 雅史

WEKO 80329

村山, 雅史

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Murayama, M.

× Murayama, M.

WEKO 80330

Murayama, M.

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中村, 俊夫

× 中村, 俊夫

WEKO 80331

中村, 俊夫

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Nakamura, T.

× Nakamura, T.

WEKO 80332

Nakamura, T.

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大場, 忠道

× 大場, 忠道

WEKO 80333

大場, 忠道

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Oba, T.

× Oba, T.

WEKO 80334

Oba, T.

Search repository
平, 朝彦

× 平, 朝彦

WEKO 80335

平, 朝彦

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Taira, A.

× Taira, A.

WEKO 80336

Taira, A.

Search repository
権利
権利情報 名古屋大学年代測定資料研究センター 天然放射性元素測定小委員会
権利
権利情報 本文データは学協会の許諾に基づきCiNiiから複製したものである
抄録
内容記述 A piston core taken from the Tasman Plateau in the Southern Ocean has been studied for organic compounds to reconstruct the late Pleistocene marine environments. Here we report paleo sea surface temperature (SST) for the last two deglaciations using the unsaturation degree of alkenones (U^k_<37'>) preserved in the marine sediments. The U^k_<37'> record indicates that the SST was at least 4℃ lower than the present SST at the last glacial maximum (LGM), and the amplitude of paleo-SST is at most 5.2℃ from the penultimate glacial (MIS-6) to the last interglacial warm period (the Eemian). These results indicate that the amplitude of Southern Ocean SST fluctuation was twice greater than that reported by the CLIMAP projects. This larger amplitude of glacial/interglacial SST change agrees with the SST changes reconstructed from diatom assemblages in the sediments from the Indian sector Southern Ocean, which showed 5-6℃ difference for the glacial/integlacial periods [Pichon et al., 1992]. The SST decrease in the glacial Southern Ocean may be caused by northward shift of the Antarctic Polar Front (APF) at that time. Our results also demonstrate that the Eemian warm period in the Southern Ocean lasted only 3,000 years followed by a sharp cooling at around 120kyrBP. The sharp cooling in the Southern Ocean seemed to occur a few millennia (2-3kyrs) before the beginning of continental ice-sheet growth
内容記述タイプ Abstract
内容記述
内容記述 タンデトロン加速器質量分析計業績報告 Summaries of Researches Using AMS 1996 (平成8)年度
内容記述タイプ Other
出版者
出版者 名古屋大学年代測定資料研究センター 天然放射性元素測定小委員会
言語
言語 jpn
資源タイプ
資源 http://purl.org/coar/resource_type/c_6501
タイプ departmental bulletin paper
ID登録
ID登録 10.18999/sumrua.8.81
ID登録タイプ JaLC
関連情報
関連タイプ isVersionOf
識別子タイプ URI
関連識別子 http://ci.nii.ac.jp/naid/110000476020/
書誌情報 名古屋大学加速器質量分析計業績報告書

巻 8, p. 81-90, 発行日 1997-03
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