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2023-11-13T06:04:40Z
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象牙を用いた炭素・窒素安定同位体分析によるアフリカゾウの原産地判別の試み
Ivory sourcing using δ<15>^N and δ<13>^C measurements
石橋, 浩
Ishibashi, Hiroshi
武内, 孝之
Takeuchi, Takayuki
小池, 裕子
Koike, Hiroko
open access
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
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
For country soucing using ivory, a total of 81 country-known ivory samples from the southern African countries (South Africa, Botswana, Mozambique, Zambia, Zimbabwe), the central African countries (Congo, Gabon and Zaire), and the eastern African countries (Sudan, Djibouti, and Ethiopia) were measured to obtain δ^<15>N and δ^<13>C values conducted by an ANCA-MS (Automatic Nitrogen and Carbon Analysis mass-spectrometry, Europa Scientific Ltd.). C/N, that is, ratio of %C to %N, is obtained from total ^<12>C and total ^<14>N data from the ANCA-MS. C/N for the collagen samples fell along the expected regression line for this protain, suggesting that the collagen extracted from the ivory samples were well purified protein. δ^<13>C values for collagen from South African ivory samples (-19.6±1.6‰)indicate a stronger dependence on C4 plants than do those from Central African samples (-26.1±1.6‰). δ^<13>C values for the 113 ivory samples from Kruger National Park in South Africa indicated that the δ^<15>N values for these samples had a correlation with a mean rainfall. High δ^<15>N values for samples from areas with lower rainfall was also suggested by van der Merwe et al.(1990). Seasonal variations in δ^<13>C values were obtained from so-called "soft ivory" samples, where the δ^<13>C values for transparent zones in annual layer indicated relatively stronger dependance on the C4 plants during a dry season.
第12回名古屋大学タンデトロン加速器質量分析計シンポジウム(平成11 (1999年度)報告 名古屋大学タンデトロン加速器質量分析計第1号機の研究実績と1号機,2号磯の利用計画
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
2000-03
jpn
departmental bulletin paper
VoR
https://doi.org/10.18999/sumrua.11.113
http://hdl.handle.net/2237/13480
https://nagoya.repo.nii.ac.jp/records/11607
10.18999/sumrua.11.113
http://ci.nii.ac.jp/naid/110000475632/
名古屋大学加速器質量分析計業績報告書
11
113
121
https://nagoya.repo.nii.ac.jp/record/11607/files/KJ00000187338.pdf
application/pdf
476.5 kB
2018-02-20