{"created":"2025-04-11T02:42:48.754008+00:00","id":2013408,"links":{},"metadata":{"_buckets":{"deposit":"c96c5942-aba3-4ce6-a042-28532b58129a"},"_deposit":{"created_by":18,"id":"2013408","owner":"18","owners":[18],"pid":{"revision_id":0,"type":"depid","value":"2013408"},"status":"published"},"_oai":{"id":"oai:repository.dl.itc.u-tokyo.ac.jp:02013408","sets":["23:3294:3295:1744338621370","9:504:3297:1744338754345"]},"author_link":[],"item_30002_bibliographic_information29":{"attribute_name":"bibliographic_information","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2025-03-31","bibliographicIssueDateType":"Issued"},"bibliographicPageEnd":"14","bibliographicPageStart":"1","bibliographicVolumeNumber":"38","bibliographic_titles":[{"bibliographic_title":"東京大学考古学研究室研究紀要","bibliographic_titleLang":"ja"},{"bibliographic_title":"Bulletin of the Department of Archaeology","bibliographic_titleLang":"en"}]}]},"item_30002_creator2":{"attribute_name":"作成者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"森先, 一貴","creatorNameLang":"ja"},{"creatorName":"MORISAKI, Kazuki","creatorNameLang":"en"}]},{"creatorNames":[{"creatorName":"神田, 和彦","creatorNameLang":"ja"},{"creatorName":"KANDA, Kazuhiko","creatorNameLang":"en"}]},{"creatorNames":[{"creatorName":"國木田, 大","creatorNameLang":"ja"},{"creatorName":"KUNIKITA, Dai","creatorNameLang":"en"}]},{"creatorNames":[{"creatorName":"崔, 桐赫","creatorNameLang":"ja"},{"creatorName":"CHOI, Donghyuk","creatorNameLang":"en"}]},{"creatorNames":[{"creatorName":"米田, 穣","creatorNameLang":"ja"},{"creatorName":"YONEDA, Minoru","creatorNameLang":"en"}]}]},"item_30002_description9":{"attribute_name":"内容記述","attribute_value_mlt":[{"subitem_description":"日本列島の旧石器時代編年を精緻化するためには、放射性炭素年代と遺跡形成過程を踏まえた居住年代決定の積み重ねが不可欠である。とくに東北地方では、以前から編年的定点の不足を原因として各研究者間で顕著な編年の不一致が課題となっていた。秋田県地蔵田遺跡は、東北地方後期旧石器時代前葉を特徴づける台形様石器Ⅱ・Ⅲ類が多数出土し、一括性の高い石器群とともに多数の炭化物が回収されていたことから、上記課題を解消する上での重要遺跡と評価される。\nそこで、まず炭化物と石器群との関係を検討し、両者の密接な関係を認めうる炭化物について年代測定を行い居住年代の推定を行った。また、台形様石器Ⅱ類は後期旧石器時代前葉の中頃を特徴づけるとされてきたいわゆる「ペン先形」台形様石器で、地蔵田遺跡以外の遺跡からも出土している。地蔵田遺跡に与える居住年代を、台形様石器Ⅱ類を持つ他の遺跡にも比定しうるのかを検討するため、地蔵田遺跡と比較対照遺跡（岩手県上萩森遺跡）の同石器について三次元デジタルモデルに基づく幾何学的形態比較研究を行った。\n放射性炭素年代測定の結果、本遺跡における人類の居住年代を34,500 〜34,000 cal BP に絞り込むことができた。東北地方の信頼できる出土コンテクストから得られたものとして、現状では最古級の年代である。その一方、地蔵田遺跡と上萩森遺跡の台形様石器Ⅱ類が同一形態といえるかを検討した幾何学的形態比較では、両者に明確な形態上の差異があった。上萩森遺跡ほど規格性の高い台形様石器Ⅱ類がこの時期以前に出土した事例は知られていないため、上萩森遺跡は地蔵田遺跡より遅れ、東北地方で調整型石刃石器群が一般化する33,000〜31,000 cal BP以前に位置付けうる。\n以上から、地蔵田遺跡は風無台Ⅱ遺跡・松木台Ⅱ遺跡とともに考古・地質編年上は後期旧石器時代のうち現状では最古段階に位置付けられる。これらに続いて上萩森遺跡・風無台Ⅰ遺跡・松木台Ⅲ遺跡・下堤G 遺跡など、非調整型石刃技術や台形様石器Ⅱ・Ⅲ類を特徴とする石器群があり、さらに遅れてAT 前後に岩手県大渡Ⅱ遺跡のような調整型石刃技術による石刃石器群が優勢になると考える。バリエーション豊かな台形様石器にはじまり、その尖頭形態の一部が石刃石器に置換されて大型化し、最終的には汎用性の高い調整型石刃石器の使用に収束していくという狩猟具変遷として整理することが可能である。\n台形様石器が主体の時期から石刃石器が主体となっていく過程はこれまでの研究でも指摘のあるところであった。ただし、結果論としてではなく、確実な定点と分析を通じて編年の根拠を明確化していくことが、これからの研究では肝要となる。","subitem_description_language":"ja","subitem_description_type":"Abstract"},{"subitem_description":"Palaeolithic chronological study in northeastern Honshu has long been facing obstacles due to the lack of reliable chronological benchmarks. This paper focuses on the Jizoden site in Akita Prefecture, which is considered as a key site for resolving the above chronological issues, because many charcoals and carbonized materials have been recovered along with a body of stone tool assemblage including pointed trapezoids, a diagnostic tool type of Early Upper Palaeolithic in this region. Based on the results of the radiocarbon dating and the outlier analysis using OxCal program, we could narrow down the timing of human occupation at this site to 34,500-34,000 cal BP. This is currently one of the oldest ages obtained from reliable excavation contexts in the Tohoku region. To determine whether the age of Jizoden site can be applied to other sites which has similar type of pointed trapezoids, a geometric morphometrics of pointed trapezoids was conducted as well. The results showed clear morphological differences between the Jizoden site and another representative site, suggesting that pointed trapezoids continued for a relatively long time until about 33,000 cal BP. As a result of this study, Palaeolithic chronology in Tohoku can be summarized as sequential changes of hunting tips; starting from a wide variety of trapezoidal stone tools, subsequent standardization of pointed trapezoids, and ending in the adoption of various blade tools. Same sort of the chronology has ever been pointed out partially in previous studies. However, chronological research methods should be to clarify the chronological benchmarks through reliable radiocarbon dating and the analysis of the site formation process.","subitem_description_language":"en","subitem_description_type":"Abstract"}]},"item_30002_file35":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_access","date":[{"dateType":"Available","dateValue":"2025-04-11"}],"displaytype":"detail","filename":"kouko3801.pdf","filesize":[{"value":"1.8MB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"objectType":"fulltext","url":"https://repository.dl.itc.u-tokyo.ac.jp/record/2013408/files/kouko3801.pdf"},"version_id":"c4b6d9b8-794c-4fec-a124-d606c92bc988"}]},"item_30002_identifier_registration17":{"attribute_name":"identifier_registration","attribute_value_mlt":[{"subitem_identifier_reg_text":"10.15083/0002013408","subitem_identifier_reg_type":"JaLC"}]},"item_30002_language12":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"jpn"}]},"item_30002_publisher10":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"東京大学大学院人文社会系研究科・文学部考古学研究室","subitem_publisher_language":"ja"},{"subitem_publisher":"The Department of Archaeology Faculty of Letters, The University of Tokyo","subitem_publisher_language":"en"}]},"item_30002_resource_type13":{"attribute_name":"item_30002_resource_type13","attribute_value_mlt":[{"resourcetype":"departmental bulletin paper","resourceuri":"http://purl.org/coar/resource_type/c_6501"}]},"item_30002_source_identifier22":{"attribute_name":"収録物識別子","attribute_value_mlt":[{"subitem_source_identifier":"1880-3784","subitem_source_identifier_type":"PISSN"},{"subitem_source_identifier":"AA11190220","subitem_source_identifier_type":"NCID"}]},"item_30002_title0":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"地蔵田遺跡の編年研究 : 放射性炭素年代測定と幾何学的形態比較研究から","subitem_title_language":"ja"},{"subitem_title":"A Chronological Study of the Early Upper Paleolithic Assemblage of Jizoden Site Based on the Radiocarbon Chronology and the Geometric Morphometrics","subitem_title_language":"en"}]},"item_title":"地蔵田遺跡の編年研究 : 放射性炭素年代測定と幾何学的形態比較研究から","item_type_id":"30002","owner":"18","path":["1744338621370","1744338754345"],"pubdate":{"attribute_name":"PubDate","attribute_value":"2025-04-11"},"publish_date":"2025-04-11","publish_status":"0","recid":"2013408","relation_version_is_last":true,"title":["地蔵田遺跡の編年研究 : 放射性炭素年代測定と幾何学的形態比較研究から"],"weko_creator_id":"18","weko_shared_id":-1},"updated":"2025-04-11T02:43:09.945790+00:00"}