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Environmental changes in Syowa Station area of Antarctica during the last 2300 years inferred from organic components in lake sediment cores
https://doi.org/10.15094/00006239
https://doi.org/10.15094/000062399f59e72d-ff07-4097-83b7-7342d52eec4f
名前 / ファイル | ライセンス | アクション |
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KJ00004015409 (1.5 MB)
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Item type | 紀要論文(ELS) / Departmental Bulletin Paper(1) | |||||
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公開日 | 2006-01-01 | |||||
タイトル | ||||||
タイトル | Environmental changes in Syowa Station area of Antarctica during the last 2300 years inferred from organic components in lake sediment cores | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | Antarctic lake | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | environmental change | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | sediment core | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | aquatic moss | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | organic components | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | carbon-14 AMS dating | |||||
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 | departmental bulletin paper | |||||
ID登録 | ||||||
ID登録 | 10.15094/00006239 | |||||
ID登録タイプ | JaLC | |||||
ページ属性 | ||||||
内容記述タイプ | Other | |||||
内容記述 | P(論文) | |||||
論文名よみ | ||||||
その他のタイトル | Environmental changes in Syowa Station area of Antarctica during the last 2300 years inferred from organic components in lake sediment cores | |||||
著者名(英) |
Matsumoto, Genki I.
× Matsumoto, Genki I.× Komori, Kazushi× Enomoto, Ayaka× Imura, Satoshi× Takemura, Tetsuo× Ohyama, Yoshikuni× Kanda, Hiroshi |
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著者所属(英) | ||||||
en | ||||||
Department of Environmental Information Science, School of Social Information Studies, Otsuma Women's University/Department of Chemistry, Faculty of Science, Tokyo University of Science/Department of Environmental Information Science, School of Social Information Studies, Otsuma Women's University/National Institute of Polar Research/Department of Chemistry, Faculty of Science, Tokyo University of Science/National Institute of Polar Research/National Institute of Polar Research | ||||||
抄録(英) | ||||||
内容記述タイプ | Other | |||||
内容記述 | rganic components in sediment cores from Namazu Ike(lake)(length 40cm) and O-ike(lake)(length 32cm) from Syowa Station area, Antarctica were studied to clarify their features in relation to paleoenvironmental changes, together with carbon-14 dating by Tandetron accelerator mass spectrometry. Namazu Ike sediment core was mainly composed of algal(mainly cyanobacteria) and aquatic moss debris, whereas O-ike sediment core was comprised of coarse and fine sands with the influence of algal(mainly cyanobacteria) debris. The ages of core bottoms of Namazu Ike and O-ike were estimated to be 1550 and 2330 years before present(yBP), respectively. The sedimentation rates of Namazu Ike and O-ike were calculated to be 30 and 59 years/cm, respectively. Very high total organic carbon(TOC) contents(average 24.5%) of Namazu Ike revealed that the sediment core was mainly composed of organic matter. Dramatic increase of TOC/total nitrogen ratios at a depth of 25cm in Namazu Ike strongly suggests that aquatic moss increased from 1100yBP to the core top. Changes in n-alkanes, n-alkanoic and n-alkenoic acids, and sterol compositions in the O-ike sediment core, suggest that microbial composition changed considerably, but their source organisms are not clear and further studies are required. | |||||
雑誌書誌ID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA11327019 | |||||
書誌情報 |
Polar bioscience 巻 19, p. 51-62, 発行日 2006-01 |
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出版者 | ||||||
出版者 | National Institute of Polar Research |