{"created":"2021-03-01T06:27:20.439799+00:00","id":19815,"links":{},"metadata":{"_buckets":{"deposit":"d9e43fcf-b103-422f-bad8-928bf2366c1f"},"_deposit":{"id":"19815","owners":[],"pid":{"revision_id":0,"type":"depid","value":"19815"},"status":"published"},"_oai":{"id":"oai:nagoya.repo.nii.ac.jp:00019815","sets":["879:1183:1184:1728"]},"author_link":["84015","84016","84017","84018","84019","84020"],"item_1615768549627":{"attribute_name":"出版タイプ","attribute_value_mlt":[{"subitem_version_resource":"http://purl.org/coar/version/c_970fb48d4fbd8a85","subitem_version_type":"VoR"}]},"item_9_alternative_title_19":{"attribute_name":"その他のタイトル","attribute_value_mlt":[{"subitem_alternative_title":"Radiocarbon dating of fossil bones using ultrafiltration : Summary of our studies","subitem_alternative_title_language":"en"}]},"item_9_biblio_info_6":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2014-03","bibliographicIssueDateType":"Issued"},"bibliographicPageEnd":"170","bibliographicPageStart":"164","bibliographicVolumeNumber":"25","bibliographic_titles":[{"bibliographic_title":"名古屋大学加速器質量分析計業績報告書","bibliographic_titleLang":"ja"}]}]},"item_9_description_4":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"We summarized our past studies on bone pretreatment for 14C-dating of some fossil bones. The samples used for the studies are animal bones (～4600 BP; gelatin yield of 2-4 wt%) from the Awazu underwater archaeological site, Shiga, Japan, a mammoth bone (39,305 ± 242 BP; gelatin yield of 17 wt%) of the Fifth International Radiocarbon Intercomparison (VIRI) sample E, and human bones (～750 BP; gelatin yield of 2-11 wt%) from an archaeological site in Yuigahama, Kamakura, Japan. The 14C ages of the high-molecular-weight (HMW) gelatins of the Awazu animal bones were the oldest and similar to those of wood collected from the same layer as the bones, and the NaOH-treated-unfiltered gelatins and XAD-purified hydrolysates gave 14C ages within the acceptable margins of error; therefore, ultrafiltration was effective for accurate 14C dating, while NaOH-treated gelatin without ultrafiltration was also sufficient to obtain accurate 14C dates on the animal bones. The 14C ages of the Yuigahama human skeletons from 3 individuals also showed statistically the same 14C ages as NaOH-treated-unfiltered gelatins and HMW gelatins within the margins of error, although HMW gelatins were likely to give slightly older ages than unfiltered gelatin with a yield of less than ～3%. These results indicate that unfiltered gelatins extracted from fossil bones of gelatin yield more than ～3% can produce accurate 14C ages without the need for ultrafiltration. Meanwhile, excessively long ultrafiltration time was suspected to have contaminated the bone samples with material from the ultrafilter, because those samples exhibited older 14C ages than did those filtered for shorter durations. The results in this study indicate that 14C ages of unfiltered gelatin extracted from well-preserved bones can be sufficiently accurate, while unfiltered gelatins with low yields could remain slightly contaminated, and that ultrafiltration might effectively remove such contaminants to provide more accurate ages for ill-preserved bones.","subitem_description_language":"en","subitem_description_type":"Abstract"},{"subitem_description":"化石骨の14C年代測定のための試料調製法に関する我々のこれまでの研究についてまとめた。研究に用いた骨試料は,粟津湖底遺跡の獣骨(～4600BP; ゼラチン収率2-4wt%), VIRI-Eマンモスの骨(39,305 士242BP; ゼラチン収率17wt%), 鎌倉由比ヶ浜南遺跡から出土した中世人骨(～750BP; ゼラチン収率2-11wt%) である。粟津湖底遺跡の獣骨に対しては,信頼ある14C年代を得るのに,限外ろ過法は有効であったが,未ろ過ゼラチンでもNaOH処理を行っていれば,十分に正確な14C年代が得られることが明らかになった。鎌倉由比ヶ浜中世人骨に対しては,ゼラチン収率が3%より低い場合に,誤差範囲内ではあるが高分子量ゼラチンの方が未ろ過ゼラチンより古い年代を示す結果が得られたことから,ゼラチン収率3%以下の骨試料に対しては,限外ろ過を行うべきであることが示唆された。また, VIRI-Eのようにゼラチン残存率が良好な骨試料に対しては限外ろ過を行う必要はなく,逆に,限外ろ過を長時間実施することにより,ろ紙からの汚染が問題となり得ることがわかった。以上の結果から,保存状態が良好で,ゼラチン残存率が高い骨試料に対して限外ろ過は必要ないが,保存状態が良好でなく,ゼラチンの残存率が悪い骨試料に対しては,限外ろ過法は信頼ある14C年代を得るために有効であると言える。骨の有機質の残存状態に応じた,最適・最短の試料調製法を用いることが重要である。","subitem_description_language":"ja","subitem_description_type":"Abstract"}]},"item_9_description_5":{"attribute_name":"内容記述","attribute_value_mlt":[{"subitem_description":"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","subitem_description_language":"ja","subitem_description_type":"Other"}]},"item_9_identifier_registration":{"attribute_name":"ID登録","attribute_value_mlt":[{"subitem_identifier_reg_text":"10.18999/sumrua.25.164","subitem_identifier_reg_type":"JaLC"}]},"item_9_publisher_32":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"名古屋大学年代測定資料研究センター","subitem_publisher_language":"ja"}]},"item_9_select_15":{"attribute_name":"著者版フラグ","attribute_value_mlt":[{"subitem_select_item":"publisher"}]},"item_access_right":{"attribute_name":"アクセス権","attribute_value_mlt":[{"subitem_access_right":"open access","subitem_access_right_uri":"http://purl.org/coar/access_right/c_abf2"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"南, 雅代","creatorNameLang":"ja"}],"nameIdentifiers":[{"nameIdentifier":"84015","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"坂田, 健","creatorNameLang":"ja"}],"nameIdentifiers":[{"nameIdentifier":"84016","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"中村, 俊夫","creatorNameLang":"ja"}],"nameIdentifiers":[{"nameIdentifier":"84017","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Minami, Masayo","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"84018","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Sakata, Ken","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"84019","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Nakamura, Toshio","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"84020","nameIdentifierScheme":"WEKO"}]}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2018-02-21"}],"displaytype":"detail","filename":"minami1642013.pdf","filesize":[{"value":"9.1 MB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"minami1642013.pdf","objectType":"fulltext","url":"https://nagoya.repo.nii.ac.jp/record/19815/files/minami1642013.pdf"},"version_id":"475efb0a-245c-467a-896b-2b5ce42690ef"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"Radiocarbon","subitem_subject_scheme":"Other"},{"subitem_subject":"Ultrafiltration","subitem_subject_scheme":"Other"},{"subitem_subject":"Fossil Bone","subitem_subject_scheme":"Other"},{"subitem_subject":"Sample preparation","subitem_subject_scheme":"Other"}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"jpn"}]},"item_resource_type":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"resourcetype":"departmental bulletin paper","resourceuri":"http://purl.org/coar/resource_type/c_6501"}]},"item_title":"限外ろ過法を用いた化石骨の14C年代測定 : これまでの総括","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"限外ろ過法を用いた化石骨の14C年代測定 : これまでの総括","subitem_title_language":"ja"}]},"item_type_id":"9","owner":"1","path":["1728"],"pubdate":{"attribute_name":"PubDate","attribute_value":"2015-05-12"},"publish_date":"2015-05-12","publish_status":"0","recid":"19815","relation_version_is_last":true,"title":["限外ろ過法を用いた化石骨の14C年代測定 : これまでの総括"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2023-01-16T04:07:22.263720+00:00"}