{"created":"2025-04-11T02:42:48.753928+00:00","id":2013409,"links":{},"metadata":{"_buckets":{"deposit":"853d9539-ec08-4c7b-a1b6-a7272d98ec22"},"_deposit":{"created_by":18,"id":"2013409","owner":"18","owners":[18],"pid":{"revision_id":0,"type":"depid","value":"2013409"},"status":"published"},"_oai":{"id":"oai:repository.dl.itc.u-tokyo.ac.jp:02013409","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":"30","bibliographicPageStart":"15","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":"根岸, 洋","creatorNameLang":"ja"},{"creatorName":"NEGISHI, Yo","creatorNameLang":"en"}]},{"creatorNames":[{"creatorName":"福田, 正宏","creatorNameLang":"ja"},{"creatorName":"FUKUDA, Masahiro","creatorNameLang":"en"}]}]},"item_30002_description9":{"attribute_name":"内容記述","attribute_value_mlt":[{"subitem_description":"縄文時代早期初頭の無文土器群は当初東北南部において調査研究が始められたが、東北北部の類例が増加した結果、東北地方全体の段階設定や年代測定値の検討も行われている。しかし当該土器群の東北北部にみられる型式学的変遷が東北南部と共通するのか否かは十分に検証されておらず、また火山灰層序との整合性を巡って齟齬が生じている。筆者らは東北北部から北海道南部の無文土器群の事例を集成し、薄手から厚手へという変化を確認した上で、その存続年代を9,500 〜9,200 14C BP・11,000 〜10,250 cal BPとした。この年代は、新段階も含めて早期初頭におさまるが、日計式土器との共伴関係や円形刺突文を伴う段階については再考の余地がある。古段階の薄手無文土器は津軽海峡を越えて大船G 遺跡で出土しており、この北上は気候温暖化と関連づけて理解することができる。また本稿では、当該土器群が二ノ倉火山灰（To-Nk）と南部浮石（To-Nb）の間から出土することを確かめ、厚手無文土器が出土したと報じられた二ノ倉火山灰に相当する土層は、後続段階の火山灰を含む層に該当する可能性を指摘した。さらに岩手県花巻市上台Ⅰ遺跡出土の薄手無文深鉢についてX 線CT を用いて観察した結果、粘土紐を平坦に積みあげる輪積みではなく巻き上げ法が用いられたと論じた。当該期に見られる多様な成形方法が採用された理由や背景の復元が求められる。","subitem_description_language":"ja","subitem_description_type":"Abstract"},{"subitem_description":"The previous study of the Plain Pottery Series (PPS) in the early Initial Jomon period was primarily based on materials recovered from the southern Tohoku region. However, recent discoveries in the northern Tohoku region have enabled archaeologists to propose a chronological framework for PPS encompassing the entire Tohoku region. Despite this progress, it remains unclear whether the typological sequence of PPS in northern Tohoku can be reconstructed in the same manner as in the southern region. Furthermore, a stratigraphic discrepancy exists between the estimated dating of PPS and the tephrochronology of the Towada volcano. Based on radiocarbon dating of PPS materials from northern Tohoku and southern Hokkaido, the authors propose a typological sequence transitioning from thinner to thicker pottery walls, with an estimated age range of 9,500–9,200 ¹⁴C BP and 11,000–10,250 cal BP. Although PPS is attributed to the earliest phase of the Initial Jomon period, further discussion is required regarding the later phase of PPS, which is associated with Hibakari-type　and circular incised pottery. The thinner pottery assemblage from the early phase, discovered at Ofune G, indicates that the PPS expanded into Hokkaido across the Tsugaru Strait. This northward movement is likely associated with climatic shifts driven by global warming. Additionally, stratigraphic data indicate that PPS cultural layers are situated between the Ninokura tephra (To-Nk, 14,300–11,700 cal BP) and the Nanbu tephra (To-Nb, 9,200 cal BP). The authors suggest that the layer containing a thicker-walled PPS, previously identified as To-Nk, may correspond to a tephra layer of a subsequent stage. Finally, X-ray CT analysis of pottery from the Uwadai I site reveals that the spiral coiling technique was employed rather than the ring-based coiling method, in which clay rolls are stacked flat. Further investigation is necessary to understand the factors behind the adoption of diverse pottery-forming techniques during this period.","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":"kouko3802.pdf","filesize":[{"value":"6.5MB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"objectType":"fulltext","url":"https://repository.dl.itc.u-tokyo.ac.jp/record/2013409/files/kouko3802.pdf"},"version_id":"e0185494-d8a6-435a-a74c-1def545200b2"}]},"item_30002_identifier_registration17":{"attribute_name":"identifier_registration","attribute_value_mlt":[{"subitem_identifier_reg_text":"10.15083/0002013409","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":"津軽海峡周辺における縄文早期初頭の無文土器群 : 年代と製作技法に着目して","subitem_title_language":"ja"},{"subitem_title":"Study of Plain Pottery Series (PPS) at the early Initial Jomon: dating and building technique of PPS across the Tsugaru Strait","subitem_title_language":"en"}]},"item_title":"津軽海峡周辺における縄文早期初頭の無文土器群 : 年代と製作技法に着目して","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":"2013409","relation_version_is_last":true,"title":["津軽海峡周辺における縄文早期初頭の無文土器群 : 年代と製作技法に着目して"],"weko_creator_id":"18","weko_shared_id":-1},"updated":"2025-04-11T02:42:59.277036+00:00"}