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北海道利尻島の泥炭湿地に飛来する鉛の供給源の変遷
https://doi.org/10.18999/sumrua.23.138
https://doi.org/10.18999/sumrua.23.138b8c2a9dd-c952-434a-afca-4477b080d61c
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
kono2011.pdf (11.1 MB)
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| Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2013-06-07 | |||||
| タイトル | ||||||
| タイトル | 北海道利尻島の泥炭湿地に飛来する鉛の供給源の変遷 | |||||
| 言語 | ja | |||||
| その他のタイトル | ||||||
| その他のタイトル | History of atmospheric lead deposition to a peat bog in Rishiri land, Hokkaido, Japan | |||||
| 言語 | en | |||||
| 著者 |
河野, 麻希子
× 河野, 麻希子× 谷水, 雅治× 浅原, 良浩× 南, 雅代× 細野, 髙啓× 中村, 俊夫× Kono, Makiko× Tanimizu, Masaharu× Asahara, Yoshihiro× Minami, Masayo× Hosono, Takahiro× Nakamura, Toshio |
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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 | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | anthropogenic lead | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | isotope | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | peat | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | transboundary | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | 14C | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | 人為鉛 | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | 同位体 | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | 泥炭 | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | 大気輸送 | |||||
| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | To reveal the history of transboundary atmospheric lead emission from the Eurasian continent to Japanese Islands and the Pacific, the time variations of amounts and sources of lead transported to the Island were clarified from concentration and isotope ratio of lead in a peat core from Otadomari Pond in Rishiri Island, Hokkaido, Japan. Sedimentation rate of the peat core was determined by 210Pb and 137Cs dating method. The sedimentation rate is 1.1 mm/yr, and the peat core with 40 cm length has a record of deposition for the past 350 years. The rate is consistent with reported values for the other peat cores in the island, and so is reliable. 14C ages of the peat samples were 1000-5000 years older than 210Pb and 137Cs ages, and this suggests that the 14C ages do not show actual depositional ages. Lead concentrations increased from 4 ppm in the lowest layer of the core to 60 ppm in the surface, and lead isotope ratios, 206Pb/207Pb and 208Pb/207Pb, decreased. This suggested that addition of anthropogenic lead increased to the present time. The lead in the lower layer is natural origin, and is a mixture of two components: lead derived from basaltic rocks in the Island and that in loess from the Eurasian continent. Since the late 19th century, anthropogenic lead has strongly affected to the peat. The lead isotopic trend suggests that contribution of the domestic anthropogenic lead emitted to the atmosphere has been small to the Rishiri Island, and that impact of anthropogenic lead mainly emitted from China and Russia to the Island has become strong. | |||||
| 言語 | en | |||||
| 内容記述 | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | 名古屋大学年代測定総合研究センターシンポジウム報告 | |||||
| 言語 | ja | |||||
| 出版者 | ||||||
| 出版者 | 名古屋大学年代測定資料研究センター | |||||
| 言語 | ja | |||||
| 言語 | ||||||
| 言語 | jpn | |||||
| 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 | |||||
| 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/sumrua.23.138 | |||||
| ID登録タイプ | JaLC | |||||
| 書誌情報 |
ja : 名古屋大学加速器質量分析計業績報告書 巻 23, p. 138-148, 発行日 2012-03 |
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| 著者版フラグ | ||||||
| 値 | publisher | |||||
