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The ^\u003c14\u003eC analyses were carried out by on Benzene-Liquid Scintillation method for ordinary amount of samples and Accelerator Mass Spectrometry (AMS) method for small scale of samples. Modern leaves of two species were analyzed to estimate the ^\u003c14\u003eC concentration of the atmosphere. The percentage of modern ^\u003c14\u003eC concentration of leaves in the range of were from 114.3% to 112.3%, with an average of 112.7% with respect to the pre-bomb level. This value is consistent with the decreasing activity of the ^\u003c14\u003eC concentration of the atomosphere. 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鹿児島県喜界島陸産貝類の^<14>C濃度異常について
https://doi.org/10.18999/10.19999/sumrua.9.201
https://doi.org/10.18999/10.19999/sumrua.9.201eefa0dc5-fde3-4bb7-82bf-92b295c0a734
名前 / ファイル | ライセンス | アクション |
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KJ00002410067.pdf (670.7 kB)
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Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||
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公開日 | 2010-05-21 | |||||
タイトル | ||||||
タイトル | 鹿児島県喜界島陸産貝類の^<14>C濃度異常について | |||||
言語 | ja | |||||
その他のタイトル | ||||||
その他のタイトル | ^<14>C concentration anomaly of land-snail for ^<14>C age determination in Kikai Island, Kagoshima Prefecture, south west Japan | |||||
言語 | en | |||||
著者 |
高橋, 秀一
× 高橋, 秀一× Takahashi, Syuichi× 和田, 秀樹× Wada, Hideki× 青木, 浩× Aoki, Hiroshi× 中村, 俊夫× 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 | |||||
権利 | ||||||
言語 | ja | |||||
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 | ||||||
言語 | ja | |||||
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 | In order to estimate the ^<14>C age anomaly of land-snail shells in Kikai Island, ^<14>C concentration of modern shells and plant leaves were analyzed. The ^<14>C analyses were carried out by on Benzene-Liquid Scintillation method for ordinary amount of samples and Accelerator Mass Spectrometry (AMS) method for small scale of samples. Modern leaves of two species were analyzed to estimate the ^<14>C concentration of the atmosphere. The percentage of modern ^<14>C concentration of leaves in the range of were from 114.3% to 112.3%, with an average of 112.7% with respect to the pre-bomb level. This value is consistent with the decreasing activity of the ^<14>C concentration of the atomosphere. The percentage of modern ^<14>C concentration of modern land-snail shells were variable in a range from 98.8% to 109.2%, from 111.8% to 115.9%, from 103.2% to 108.4% and 96.3%. ^<14>C age anomaly for two land-snail shells were estimated from the difference of the percentage of modern ^<14>C concentration between modern leaves and modern shells. ^<14>C age anomaly for Bradybaena phaeogramma were in a wide range of 250-1060 yr. with average of 640±320 (yr.±1σ), -230-60 yr. with average of -110±150(yr. ±1σ) for Cyclophorus kikaiensis, 310-710 yr. with average of 450 ±220 (yr. ± σ) for Acusta despecta kikaiensis, 1260 yr. for Luchuena reticulate. The variation in ^<14>C age anomaly of Bradybaena phaeogramma and Acusta despecta kikaiensis shells may be due to ther ingestion of dead carbon derived from the substrate of limestone. I could not detect the ^<14>C age anomaly of Cyclophorus kikaiensis shells. It is interesting for biology that Prosobramchia, Cyclophorus kikaiensis shows no ^<14>C age anomaly, but other species belong to Pulumonata show ^<14>C age anomaly. | |||||
言語 | en | |||||
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 1997 (平成9)年度 | |||||
言語 | ja | |||||
内容記述タイプ | Other | |||||
出版者 | ||||||
言語 | ja | |||||
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 | |||||
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 | 10.18999/10.19999/sumrua.9.201 | |||||
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/110001136061/ | |||||
書誌情報 |
ja : 名古屋大学加速器質量分析計業績報告書 巻 9, p. 201-211, 発行日 1998-03 |
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フォーマット | ||||||
application/pdf | ||||||
著者版フラグ | ||||||
値 | publisher |