{"_buckets": {"deposit": "a95c54fb-5306-4d07-bae9-81535b29161f"}, "_deposit": {"created_by": 10, "id": "6574", "owners": [10], "pid": {"revision_id": 0, "type": "depid", "value": "6574"}, "status": "published"}, "_oai": {"id": "oai:nied-repo.bosai.go.jp:00006574", "sets": []}, "author_link": [], "item_10001_biblio_info_7": {"attribute_name": "書誌情報", "attribute_value_mlt": [{"bibliographicIssueDates": {"bibliographicIssueDate": "2024-02-08", "bibliographicIssueDateType": "Issued"}, "bibliographicIssueNumber": "2", "bibliographicPageEnd": "196", "bibliographicPageStart": "167", "bibliographicVolumeNumber": "15", "bibliographic_titles": [{"bibliographic_title": "Solid Earth", "bibliographic_titleLang": "en"}]}]}, "item_10001_description_5": {"attribute_name": "抄録", "attribute_value_mlt": [{"subitem_description": "Petit-spot volcanoes, occurring due to plate flexure, have been reported globally. As the petit-spot melts ascend from the asthenosphere, they provide crucial information of the lithosphere-asthenosphere boundary. Herein, we examined the lava outcrops of six monogenetic volcanoes formed by petit-spot volcanism in the western Pacific. We then analyzed the 40Ar/39Ar ages, major and trace element compositions, and Sr, Nd, and Pb isotopic ratios of the petit-spot basalts. The 40Ar/39Ar ages of two monogenetic volcanoes were ca. 2.6Ma (million years ago) and ca. 0Ma. The isotopic compositions of the western Pacific petit-spot basalts suggest geochemically similar melting sources. They were likely derived from a mixture of high-μ (HIMU) mantle-like and enriched mantle (EM)-1-like components related to carbonatitic/carbonated materials and recycled crustal components. The characteristic trace element composition (i.e., Zr, Hf, and Ti depletions) of the western Pacific petit-spot magmas could be explained by the partial melting of ĝ1/45% crust bearing garnet lherzolite, with 10% carbonatite flux to a given mass of the source, as implied by a mass-balance-based melting model. This result confirms the involvement of carbonatite melt and recycled crust in the source of petit-spot melts. It provides insights into the genesis of tectonic-induced volcanoes, including the Hawaiian North Arch and Samoan petit-spot-like rejuvenated volcanoes that have a similar trace element composition to petit-spot basalts.", "subitem_description_language": "en", "subitem_description_type": "Other"}]}, "item_10001_relation_14": {"attribute_name": "DOI", "attribute_value_mlt": [{"subitem_relation_type_id": {"subitem_relation_type_id_text": "10.5194/se-15-167-2024"}}]}, "item_10001_source_id_9": {"attribute_name": "ISSN", "attribute_value_mlt": [{"subitem_source_identifier": "1869-9529", "subitem_source_identifier_type": "EISSN"}]}, "item_creator": {"attribute_name": "著者", "attribute_type": "creator", "attribute_value_mlt": [{"creatorNames": [{"creatorName": "Kazuto Mikuni", "creatorNameLang": "en"}]}, {"creatorNames": [{"creatorName": "Naoto Hirano", "creatorNameLang": "en"}]}, {"creatorNames": [{"creatorName": "Shiki MacHida", "creatorNameLang": "en"}]}, {"creatorNames": [{"creatorName": "Hirochika Sumino", "creatorNameLang": "en"}]}, {"creatorNames": [{"creatorName": "Norikatsu Akizawa", "creatorNameLang": "en"}]}, {"creatorNames": [{"creatorName": "Akihiro Tamura", "creatorNameLang": "en"}]}, {"creatorNames": [{"creatorName": "Tomoaki Morishita", "creatorNameLang": "en"}]}, {"creatorNames": [{"creatorName": "Yasuhiro Kato", "creatorNameLang": "en"}]}]}, "item_title": "Contribution of carbonatite and recycled oceanic crust to petit-spot lavas on the western Pacific Plate", "item_titles": {"attribute_name": "タイトル", "attribute_value_mlt": [{"subitem_title": "Contribution of carbonatite and recycled oceanic crust to petit-spot lavas on the western Pacific Plate", "subitem_title_language": "en"}]}, "item_type_id": "40001", "owner": "10", "path": ["1670839190650"], "permalink_uri": "https://nied-repo.bosai.go.jp/records/6574", "pubdate": {"attribute_name": "PubDate", "attribute_value": "2024-04-08"}, "publish_date": "2024-04-08", "publish_status": "0", "recid": "6574", "relation": {}, "relation_version_is_last": true, "title": ["Contribution of carbonatite and recycled oceanic crust to petit-spot lavas on the western Pacific Plate"], "weko_shared_id": -1}