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Collagens were extracted from fossil samples by pretreatment and HCl-demi-neralization following to gelatinization process, and two kinds of collagens, HCl-soluble and -insoluble gelatin collagen, can be obtained. The two kinds of collagens extracted from the same sample coincide well for respective values of C/N ratio, δ^\u003c13\u003eC and radiocarbon age. The both collagens, therefore, can be used for the radiocarbon age determination and the ^\u003c13\u003eC-environmental analysis. The radiocarbon age of well-preserved molar, tusk and horn samples containing more than 0.7% (C/N rations of these samples show 3.0 to 3.9 without exception) closely coincides with that of wood fossils from the same horizon. On the other hand for the poorly preserved collagens containing less than 0.7% having larger C/N ratios than 4.0,the ^\u003c14\u003eC dating indicates the younger age in 5 to 10 thouthands years compared with that of wood fossils which is well preserved, showing generally reliable ^\u003c14\u003eC age. So it can be said that (1) most molars of Naumann\u0027s elephant fossils and most horns of Yabe\u0027s deer fossils are reliable for the ^\u003c14\u003eC age determination, resulting in rasonable ^\u003c14\u003eC ages, (2) all the tusks of elephant samples and bones of deer samples are not reliable, showing too young ages, and (3) in the case of Sika deer (Cervus nippon) fossils from the Holcene, all and both horns and bones are well-preserved to determine the ^\u003c14\u003eC age. Using only well-preserved mammal molar, horn and bone samples their ^\u003c14\u003eC ages and δ^\u003c13\u003eC values have been analysed and the following results were obtained in the present study. For Nojiriko samples, (1) The ^\u003c14\u003eC ages of Naumann\u0027s elephant and deer fossils range from 50×10^3 to 35×10^3 Yr.BP. (2) Domestic stone impliments belonging to the paleolithic man occur in the Nojiriko formation where the Naumann\u0027s elephant and deer fossils can be found. Therefore, it can be concluded from the ^\u003c14\u003eC ages of mammal fossils that the paleolithic man so called \"Nojiriko man\" is not a Neanthropic man (Neoanthrope ; Homo sapiens sapiens) but a Paleo-man (Paleoanthrope ; Homo sapiens neanderthalensis). (3) A rising trend of the atmospheric temperature from 50 thousands to 35 thousands years B.P. could be proved by δ^\u003c13\u003eC measurements and ^\u003c14\u003eC ages of the collagens extracted from the Naumann\u0027s elephant and deer fossils. This temperature-rising trend corresponds to a temterature increase of \"GLACIAL STADIAL\" to \"INTERGLACIAL\" during the last Glacial Age, the WURM Glacial Age. For the Kantoh Plain samples. 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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. 3

哺乳動物化石の<14>^C年代測定と<13>^Cによる環境変動の解明 : 野尻湖ナウマンゾウ・オオツノシカ,関東地方ニホンシカを中心として

https://doi.org/10.18999/sumrua.3.7
https://doi.org/10.18999/sumrua.3.7
da0b1afe-a40a-4e86-8f27-bb6db1ca5930
名前 / ファイル ライセンス アクション
KJ00000187518.pdf KJ00000187518.pdf (965.6 kB)
Item type 紀要論文 / Departmental Bulletin Paper(1)
公開日 2010-04-26
タイトル
タイトル 哺乳動物化石の<14>^C年代測定と<13>^Cによる環境変動の解明 : 野尻湖ナウマンゾウ・オオツノシカ,関東地方ニホンシカを中心として
その他のタイトル
その他のタイトル AMS radiocarbon ages and environmental changes deduced from <14>^C and <13>^C of collagen extracted form mammal fossils excavated Nojiriko formation and the Kantoh plains
著者 中井, 信之

× 中井, 信之

WEKO 79477

中井, 信之

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Nakai, Nobuyuki

× Nakai, Nobuyuki

WEKO 79478

Nakai, Nobuyuki

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中村, 俊夫

× 中村, 俊夫

WEKO 79479

中村, 俊夫

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Nakamura, Toshio

× Nakamura, Toshio

WEKO 79480

Nakamura, Toshio

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有田, 陽子

× 有田, 陽子

WEKO 79481

有田, 陽子

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Arita, Yoko

× Arita, Yoko

WEKO 79482

Arita, Yoko

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森, 育子

× 森, 育子

WEKO 79483

森, 育子

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Mori, lkuko

× Mori, lkuko

WEKO 79484

Mori, lkuko

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亀井, 節夫

× 亀井, 節夫

WEKO 79485

亀井, 節夫

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Kamei, Tadao

× Kamei, Tadao

WEKO 79486

Kamei, Tadao

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秋山, 雅彦

× 秋山, 雅彦

WEKO 79487

秋山, 雅彦

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Akiyama, masahiko

× Akiyama, masahiko

WEKO 79488

Akiyama, masahiko

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沢田, 健

× 沢田, 健

WEKO 79489

沢田, 健

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Sawada, Ken

× Sawada, Ken

WEKO 79490

Sawada, Ken

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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 Radiocarbin (^<14>C) and ^<13>C (Stable carbon isotope ; δ^<13>C) were determined for collagens of Naumann's elephant (Palaeoloxodon naumanni) and Yabe's giant deer (Sinomegaceros yabei) fossils from the Upper Pleistocene Nojiriko Formation and Sika deer (Cervus nippon) fossils from the Holocene Shellmounds of the Kantoh Plains. ^<14>C measurement of collagens extracted from mammal molar teeth, tusks, bones and horns has been done by Tandetron Accelerator Mass Spectrometer at the Dating and Materials Research Center, Nagoya University, Nagoya, Japan. Collagens were extracted from fossil samples by pretreatment and HCl-demi-neralization following to gelatinization process, and two kinds of collagens, HCl-soluble and -insoluble gelatin collagen, can be obtained. The two kinds of collagens extracted from the same sample coincide well for respective values of C/N ratio, δ^<13>C and radiocarbon age. The both collagens, therefore, can be used for the radiocarbon age determination and the ^<13>C-environmental analysis. The radiocarbon age of well-preserved molar, tusk and horn samples containing more than 0.7% (C/N rations of these samples show 3.0 to 3.9 without exception) closely coincides with that of wood fossils from the same horizon. On the other hand for the poorly preserved collagens containing less than 0.7% having larger C/N ratios than 4.0,the ^<14>C dating indicates the younger age in 5 to 10 thouthands years compared with that of wood fossils which is well preserved, showing generally reliable ^<14>C age. So it can be said that (1) most molars of Naumann's elephant fossils and most horns of Yabe's deer fossils are reliable for the ^<14>C age determination, resulting in rasonable ^<14>C ages, (2) all the tusks of elephant samples and bones of deer samples are not reliable, showing too young ages, and (3) in the case of Sika deer (Cervus nippon) fossils from the Holcene, all and both horns and bones are well-preserved to determine the ^<14>C age. Using only well-preserved mammal molar, horn and bone samples their ^<14>C ages and δ^<13>C values have been analysed and the following results were obtained in the present study. For Nojiriko samples, (1) The ^<14>C ages of Naumann's elephant and deer fossils range from 50×10^3 to 35×10^3 Yr.BP. (2) Domestic stone impliments belonging to the paleolithic man occur in the Nojiriko formation where the Naumann's elephant and deer fossils can be found. Therefore, it can be concluded from the ^<14>C ages of mammal fossils that the paleolithic man so called "Nojiriko man" is not a Neanthropic man (Neoanthrope ; Homo sapiens sapiens) but a Paleo-man (Paleoanthrope ; Homo sapiens neanderthalensis). (3) A rising trend of the atmospheric temperature from 50 thousands to 35 thousands years B.P. could be proved by δ^<13>C measurements and ^<14>C ages of the collagens extracted from the Naumann's elephant and deer fossils. This temperature-rising trend corresponds to a temterature increase of "GLACIAL STADIAL" to "INTERGLACIAL" during the last Glacial Age, the WURM Glacial Age. For the Kantoh Plain samples. (1)The ^<14>C ages of Sika deer (Cervus nippon) fossils range from 5,090 Yr, B.P. to 2,820 Yr.B.P. (2) A dropping trend of the temperature could be found from 4,000 to 3,500 Yr.B.P. in the Kantoh Plains based on δ^<13>C measurements and ^<14>C ages of the collagens from Sika deer fossils.
内容記述タイプ Abstract
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.3.7
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/110000475783/
書誌情報 名古屋大学加速器質量分析計業績報告書

巻 3, p. 7-28, 発行日 1992-03
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