{"_buckets": {"deposit": "7326ead6-3c3b-455e-b57d-eafbb27b744c"}, "_deposit": {"created_by": 10, "id": "2277", "owner": "1", "owners": [10], "pid": {"revision_id": 0, "type": "depid", "value": "2277"}, "status": "published"}, "_oai": {"id": "oai:nied-repo.bosai.go.jp:00002277", "sets": []}, "author_link": [], "item_10002_biblio_info_7": {"attribute_name": "書誌情報", "attribute_value_mlt": [{"bibliographicIssueDates": {"bibliographicIssueDate": "2021-02-16", "bibliographicIssueDateType": "Issued"}, "bibliographicIssueNumber": "456", "bibliographicPageEnd": "36", "bibliographicPageStart": "1", "bibliographic_titles": [{"bibliographic_title": "防災科学技術研究所研究資料", "bibliographic_titleLang": "ja"}]}]}, "item_10002_description_5": {"attribute_name": "抄録", "attribute_value_mlt": [{"subitem_description": "防災科学技術研究所が有珠山北麓で掘削した壮瞥火山観測井のコア試料は深度ごとに特徴の異なる3つのグループに大別される．コア試料の上部区間（深度0 ～ 22.8 m）は歴史時代噴出物の二次的な堆積物，中部区間（深度22.8 ～ 78.6 m）は外輪山成層火山形成期の水中および陸上の溶岩流が主体となっている．下部区間（深度78.6 ～ 201.0 m）はこの地域に広く存在する安山岩類起源の円礫を多く含む河川成の礫層を主体とし軽石凝灰岩層を狭在する．軽石凝灰岩層は洞爺火砕流堆積物，クッタラKt-2，支笏火砕流堆積物，有珠上長和などの洞爺カルデラ形成期から有珠火山形成初期に噴出したテフラ由来の火砕物粒子を主体とする二次的な土石流堆積物と考えられる．今回得られた地質断面から有珠火山北部の直下には未固結の堆積物が厚く存在する可能性が指摘される．\nBorehole core samples from the Sobetsu observation well constructed by NIED at the northern foot of Usu volcano are described. The total depth of the borehole reached 201 m from the surface. On the basis of the lithologic features and fission track dating, the borehole cores can be divided into three stratigraphic groups. The upper part (0 to 22.8 m in depth) consists mainly of dacitic debris flow (lahar) deposits. The middle part (22.8 to 78.6 m in depth) consists mainly of basaltic and basaltic andesite lava flows. The lower units of lava flows have water-chilled features. The lower part (78.6 to 201.0 m in depth) consists of alternate congromerate and pumice tuff layers. The upper part can be ascribed to the secondary debris flow (lahar) deposit of historic Usu eruption deposits distributed on the volcanic fan of Usu volcano. The middle part can be ascribed to subaqueous and subaerial lava flows of the Usu somma edifice. The lower part is interpreted to be a deposit of gravelly delta that occurred on the south margin of Toya caldera. The pumice tuff layers in the lower part are interpreted to be lahar deposits and the materials constituting them are Toya pyroclastic flow, Kuttara Kt-2, Shikotsu pyroclastic flow, Us-Ka and other Late\nPleistocene tephras. The geological section obtained suggests that thick unconsolidated Late Pleistocene sediments may underlie the northern part of Usu volcano.", "subitem_description_language": "ja"}]}, "item_10002_identifier_registration": {"attribute_name": "ID登録", "attribute_value_mlt": [{"subitem_identifier_reg_text": "10.24732/NIED.00002446", "subitem_identifier_reg_type": "JaLC"}]}, "item_10002_publisher_8": {"attribute_name": "出版者", "attribute_value_mlt": [{"subitem_publisher": "防災科学技術研究所", "subitem_publisher_language": "ja"}]}, "item_10002_source_id_9": {"attribute_name": "ISSN", "attribute_value_mlt": [{"subitem_source_identifier": "1347-748X", "subitem_source_identifier_type": "EISSN"}]}, "item_creator": {"attribute_name": "著者", "attribute_type": "creator", "attribute_value_mlt": [{"creatorNames": [{"creatorName": "長井 雅史", "creatorNameLang": "ja"}, {"creatorName": "ナガイ マサシ", "creatorNameLang": "ja-Kana"}], "familyNames": [{"familyName": "長井", "familyNameLang": "ja"}, {"familyName": "ナガイ", "familyNameLang": "ja-Kana"}], "givenNames": [{"givenName": "雅史", "givenNameLang": "ja"}, {"givenName": "マサシ", "givenNameLang": "ja-Kana"}]}, {"creatorNames": [{"creatorName": "大島 弘光", "creatorNameLang": "ja"}, {"creatorName": "オオシマ ヒロミツ", "creatorNameLang": "ja-Kana"}], "familyNames": [{"familyName": "大島", "familyNameLang": "ja"}, {"familyName": "オオシマ", "familyNameLang": "ja-Kana"}], "givenNames": [{"givenName": "弘光", "givenNameLang": "ja"}, {"givenName": "ヒロミツ", "givenNameLang": "ja-Kana"}]}, {"creatorNames": [{"creatorName": "棚田 俊收", "creatorNameLang": "ja"}, {"creatorName": "タナダ トシカズ", "creatorNameLang": "ja-Kana"}], "familyNames": [{"familyName": "棚田", "familyNameLang": "ja"}, {"familyName": "タナダ", "familyNameLang": "ja-Kana"}], "givenNames": [{"givenName": "俊收", "givenNameLang": "ja"}, {"givenName": "トシカズ", "givenNameLang": "ja-Kana"}]}, {"creatorNames": [{"creatorName": "吉本 充宏", "creatorNameLang": "ja"}, {"creatorName": "ヨシモト ミツヒロ", "creatorNameLang": "ja-Kana"}], "familyNames": [{"familyName": "吉本", "familyNameLang": "ja"}, {"familyName": "ヨシモト", "familyNameLang": "ja-Kana"}], "givenNames": [{"givenName": "充宏", "givenNameLang": "ja"}, {"givenName": "ミツヒロ", "givenNameLang": "ja-Kana"}]}, {"creatorNames": [{"creatorName": "松本 亜希子", "creatorNameLang": "ja"}, {"creatorName": "マツモト アキコ", "creatorNameLang": "ja-Kana"}], "familyNames": [{"familyName": "松本", "familyNameLang": "ja"}, {"familyName": "マツモト", "familyNameLang": "ja-Kana"}], "givenNames": [{"givenName": "亜希子", "givenNameLang": "ja"}, {"givenName": "アキコ", "givenNameLang": "ja-Kana"}]}, {"creatorNames": [{"creatorName": "山本 英二", "creatorNameLang": "ja"}, {"creatorName": "ヤマモト エイジ", "creatorNameLang": "ja-Kana"}], "familyNames": [{"familyName": "山本", "familyNameLang": "ja"}, {"familyName": "ヤマモト", "familyNameLang": "ja-Kana"}], "givenNames": [{"givenName": "英二", "givenNameLang": "ja"}, {"givenName": "エイジ", "givenNameLang": "ja-Kana"}]}, {"creatorNames": [{"creatorName": "棚田 俊收", "creatorNameLang": "ja"}, {"creatorName": "タナダ トシカズ", "creatorNameLang": "ja-Kana"}], "familyNames": [{"familyName": "棚田", "familyNameLang": "ja"}, {"familyName": "タナダ", "familyNameLang": "ja-Kana"}], "givenNames": [{"givenName": "俊收", "givenNameLang": "ja"}, {"givenName": "トシカズ", "givenNameLang": "ja-Kana"}]}, {"creatorNames": [{"creatorName": "檀原 徹", "creatorNameLang": "ja"}, {"creatorName": "ダンハラ トオル", "creatorNameLang": "ja-Kana"}], "familyNames": [{"familyName": "檀原", "familyNameLang": "ja"}, {"familyName": "ダンハラ", "familyNameLang": "ja-Kana"}], "givenNames": [{"givenName": "徹", "givenNameLang": "ja"}, {"givenName": "トオル", "givenNameLang": "ja-Kana"}]}, {"creatorNames": [{"creatorName": "岩野 英樹", "creatorNameLang": "ja"}, {"creatorName": "イワノ ヒデユキ", "creatorNameLang": "ja-Kana"}], "familyNames": [{"familyName": "岩野", "familyNameLang": "ja"}, {"familyName": "イワノ", "familyNameLang": "ja-Kana"}], "givenNames": [{"givenName": "英樹", "givenNameLang": "ja"}, {"givenName": "ヒデユキ", "givenNameLang": "ja-Kana"}]}]}, "item_files": {"attribute_name": "ファイル情報", "attribute_type": "file", "attribute_value_mlt": [{"accessrole": "open_access", "download_preview_message": "", "file_order": 0, "filename": "2446_22_1.pdf", "format": "application/pdf", "future_date_message": "", "is_thumbnail": false, "mimetype": "application/pdf", "size": 0, "url": {"label": "n456.pdf", "url": "https://nied-repo.bosai.go.jp/record/2277/files/2446_22_1.pdf"}, "version_id": "2183cb27-2d98-4deb-9132-1e02fb2bc389"}]}, "item_keyword": {"attribute_name": "キーワード", "attribute_value_mlt": [{"subitem_subject": "V-net,ボーリングコア,有珠火山,洞爺カルデラ,火山泥流,水中溶岩流,噴火履歴", "subitem_subject_language": "ja"}, {"subitem_subject": "V-net, Borehole core, Usu volcano, Toya caldera, Lahar deposit, Subaqueous Lava flow,Eruptive History", "subitem_subject_language": "en"}]}, "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": "有珠山壮瞥火山観測井コア試料の岩相と層序", "item_titles": {"attribute_name": "タイトル", "attribute_value_mlt": [{"subitem_title": "有珠山壮瞥火山観測井コア試料の岩相と層序", "subitem_title_language": "ja"}, {"subitem_title": "Stratigraphy and Lithologic Features of Borehole Core from Sobetsu Observation Well, Usu Volcano, Hokkaido, Japan", "subitem_title_language": "en"}]}, "item_type_id": "10002", "owner": "10", "path": ["762"], "permalink_uri": "https://doi.org/10.24732/NIED.00002446", "pubdate": {"attribute_name": "PubDate", "attribute_value": "2021-02-16"}, "publish_date": "2021-02-16", "publish_status": "0", "recid": "2277", "relation": {}, "relation_version_is_last": true, "title": ["有珠山壮瞥火山観測井コア試料の岩相と層序"], "weko_shared_id": -1}