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  1. F300 宇宙地球環境研究所
  2. F300b 紀要
  3. 名古屋大学年代測定研究
  4. 2

被熱動物骨の炭酸ヒドロキシアパタイトを用いた14C年代測定の可能性

https://doi.org/10.18999/nagubc.2.40
https://doi.org/10.18999/nagubc.2.40
eb7d14d5-875e-4822-9f01-919ffc76b153
名前 / ファイル ライセンス アクション
040-045_2017.pdf 040-045_2017.pdf (1.5 MB)
Item type 紀要論文 / Departmental Bulletin Paper(1)
公開日 2018-08-20
タイトル
タイトル 被熱動物骨の炭酸ヒドロキシアパタイトを用いた14C年代測定の可能性
言語 ja
その他のタイトル
その他のタイトル Possibility of radiocarbon dating from carbonate hydroxyapatite in burned animal bones
言語 en
著者 木田, 梨沙子

× 木田, 梨沙子

WEKO 79154

ja 木田, 梨沙子

Search repository
南, 雅代

× 南, 雅代

WEKO 79155

ja 南, 雅代

Search repository
門脇, 誠二

× 門脇, 誠二

WEKO 79156

ja 門脇, 誠二

Search repository
Kida, Risako

× Kida, Risako

WEKO 79157

en Kida, Risako

Search repository
Minami, Masayo

× Minami, Masayo

WEKO 79158

en Minami, Masayo

Search repository
Kadowaki, Seiji

× Kadowaki, Seiji

WEKO 79159

en Kadowaki, Seiji

Search repository
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 14C dating
キーワード
主題Scheme Other
主題 carbonate hydroxyapatite
キーワード
主題Scheme Other
主題 apatite crystallinity
キーワード
主題Scheme Other
主題 burned bone
キーワード
主題Scheme Other
主題 Azerbaijan
抄録
内容記述 Burned bones may not provide accurate 14C dating because of no remain of collagen, an organic fraction in bone, suffered from heating. It is a very crucial assignment to enable burned bone to be 14C-dated. The purpose of this study is to test the reliability of 14C dating of carbonate hydroxyapatite (CHa), an inorganic fraction in bone, by using some burned bones from archaeological sites. The samples tested are five burned bones with gray to black colors of known-age collected from the Göytepe and Damjili Cave archeological sites in Azerbaijan. The XRD patterns of the bones showed that they had not suffered from the heat of >600ºC, and that they have low crystallinity of apatite. The 14C dates of the Göytepe and Damjili Cave bones were younger than the dates obtained by charred materials excavated from the same layer for 400 years and 1000–1700 years, respectively. The results indicate that the bones burned at the low temperature (<600ºC) have been heavily contaminated through diagenetic alteration during burial because of low crystallinity of apatite, and that the contaminants can not be removed from bone CHa by chemical treatment used in this study. In conclusion, secondary carbonate can be removed from even bones burned at low temperature (<600ºC) by acetic acid treatment, while exogenous carbon included into the inner site of CHa can not be removed. The degree of contamination from foreign carbon in bone samples varies with burial condition. Therefore, it is important to check the apatite crystallinity of bone and burial environment of bones to perform reliable 14C dating using bone CHa.
言語 en
内容記述タイプ Abstract
抄録
内容記述 遺跡に埋没している被熱骨に対し,炭酸ヒドロキシアパタイトを用いて信頼性のある14C年代測定が可能であるかを検証した.用いた試料は,アゼルバイジャンのギョイテペ遺跡とダムジリ洞窟遺跡から出土した被熱動物骨7点である.これらの骨試料の炭酸ヒドロキシアパタイトの14C年代は,同層から得られた炭化植物片の年代よりも,ギョイテペ遺跡においては400年,ダムジリ洞窟遺跡においては1000-1700年程度若くなった.XRDパターン結果から,二次的に付着した炭酸塩は,試料の酢酸処理によって除去されていると考えられ,若くなった原因は,炭酸ヒドロキシアパタイト結晶内に入り込んだ汚染炭素によるものと考えられる.ギョイテペ遺跡とダムジリ洞窟遺跡遺跡による年代差は,ギョイテペ遺跡の周辺は火成岩が,ダムジリ洞窟の周辺は石灰岩が分布していて土壌環境が異なっていたためと考えられる.今後さらに,埋没環境,被熱温度が異なる骨試料に対し,炭酸ヒドロキシアパタイトを用いて信頼性のある14C年代を得るための検討を行なっていく必要がある.
言語 ja
内容記述タイプ Abstract
出版者
言語 ja
出版者 名古屋大学宇宙地球環境研究所
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/nagubc.2.40
ID登録タイプ JaLC
書誌情報 ja : 名古屋大学年代測定研究

巻 2, p. 40-45, 発行日 2018-03-31
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