{"_buckets": {"deposit": "1646c39b-ad89-4f9b-8cea-cf048b52894a"}, "_deposit": {"id": "2882", "owners": [1], "pid": {"revision_id": 0, "type": "depid", "value": "2882"}, "status": "published"}, "_oai": {"id": "oai:nied-repo.bosai.go.jp:00002882", "sets": []}, "author_link": [], "item_10001_biblio_info_7": {"attribute_name": "書誌情報", "attribute_value_mlt": [{"bibliographicIssueDates": {"bibliographicIssueDate": "2021-06", "bibliographicIssueDateType": "Issued"}, "bibliographicIssueNumber": "6", "bibliographicVolumeNumber": "126", "bibliographic_titles": [{"bibliographic_title": "JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH", "bibliographic_titleLang": "en"}]}]}, "item_10001_description_5": {"attribute_name": "抄録", "attribute_value_mlt": [{"subitem_description": "Phreatic and phreatomagmatic eruptions represent some of the greatest hazards occurring on volcanoes. They result from complex interactions at a depth between rock, water, and magmatic fluids. Understanding and assessing such processes remain a challenging task, notably because a large-scale characterization of volcanic edifices is often lacking. Here we focused on Miyakejima Island, an inhabited 8-km-wide stratovolcano with regular phreatomagmatic activity. We imaged its plumbing system through a combination of four geophysical techniques: magnetotellurics, seismicity, self-potential, and thermal image. We thus propose the first comprehensive interpretation of the volcanic island in terms of rock properties, temperature, fluid content, and fluid flow. We identify a shallow aquifer lying above a clay cap (\u003c1 km depth) and reveal its relation with magmatic-tectonic features and past eruptive activity. At greater depths (2-4.5 km), we infer a seismogenic resistive region interpreted as a magmatic gas-rich reservoir (\u003e= 370 degrees C). From this reservoir, gases rise through a fractured conduit before being released in the fumarolic area at similar to 180 degrees C. During their ascent, these hot fluids cross a similar to 1.2-km-long liquid-dominated zone causing local steam explosions. Such magmatic-hydrothermal interaction elucidates (i) the origin of the long-period seismic events and (ii) the mixing mechanism between magmatic and hydrothermal fluids, which was previously observed in the geochemical signature of fumaroles. Our results demonstrate that combining multidisciplinary large-scale methods is a relevant approach to better understand volcanic systems, with implications for monitoring strategies.", "subitem_description_language": "en", "subitem_description_type": "Other"}]}, "item_10001_publisher_8": {"attribute_name": "出版者", "attribute_value_mlt": [{"subitem_publisher": "AMER GEOPHYSICAL UNION", "subitem_publisher_language": "en"}]}, "item_10001_relation_14": {"attribute_name": "DOI", "attribute_value_mlt": [{"subitem_relation_type_id": {"subitem_relation_type_id_text": "10.1029/2021JB022034"}}]}, "item_10001_source_id_9": {"attribute_name": "ISSN", "attribute_value_mlt": [{"subitem_source_identifier": "2169-9356", "subitem_source_identifier_type": "EISSN"}]}, "item_creator": {"attribute_name": "著者", "attribute_type": "creator", "attribute_value_mlt": [{"creatorNames": [{"creatorName": "Marceau Gresse", "creatorNameLang": "en"}]}, {"creatorNames": [{"creatorName": "Makoto Uyeshima", "creatorNameLang": "en"}]}, {"creatorNames": [{"creatorName": "Takao Koyama", "creatorNameLang": "en"}]}, {"creatorNames": [{"creatorName": "Hideaki Hase", "creatorNameLang": "en"}]}, {"creatorNames": [{"creatorName": "Koki Aizawa", "creatorNameLang": "en"}]}, {"creatorNames": [{"creatorName": "Yusuke Yamaya", "creatorNameLang": "en"}]}, {"creatorNames": [{"creatorName": "Yuichi Morita", "creatorNameLang": "en"}]}, {"creatorNames": [{"creatorName": "Derek Weller", "creatorNameLang": "en"}]}, {"creatorNames": [{"creatorName": "Tawat Rung-Arunwan", "creatorNameLang": "en"}]}, {"creatorNames": [{"creatorName": "Takayuki Kaneko", "creatorNameLang": "en"}]}, {"creatorNames": [{"creatorName": "Yoichi Sasai", "creatorNameLang": "en"}]}, {"creatorNames": [{"creatorName": "Jacques Zlotnicki", "creatorNameLang": "en"}]}, {"creatorNames": [{"creatorName": "Tsuneo Ishido", "creatorNameLang": "en"}]}, {"creatorNames": [{"creatorName": "Hideki Ueda", "creatorNameLang": "en"}]}, {"creatorNames": [{"creatorName": "Maki Hata", "creatorNameLang": "en"}]}]}, "item_language": {"attribute_name": "言語", "attribute_value_mlt": [{"subitem_language": "eng"}]}, "item_title": "Hydrothermal and Magmatic System of a Volcanic Island Inferred From Magnetotellurics, Seismicity, Self-potential, and Thermal Image: An Example of Miyakejima (Japan)", "item_titles": {"attribute_name": "タイトル", "attribute_value_mlt": [{"subitem_title": "Hydrothermal and Magmatic System of a Volcanic Island Inferred From Magnetotellurics, Seismicity, Self-potential, and Thermal Image: An Example of Miyakejima (Japan)", "subitem_title_language": "en"}]}, "item_type_id": "40001", "owner": "1", "path": ["1670839190650"], "permalink_uri": "https://nied-repo.bosai.go.jp/records/2882", "pubdate": {"attribute_name": "PubDate", "attribute_value": "2023-03-30"}, "publish_date": "2023-03-30", "publish_status": "0", "recid": "2882", "relation": {}, "relation_version_is_last": true, "title": ["Hydrothermal and Magmatic System of a Volcanic Island Inferred From Magnetotellurics, Seismicity, Self-potential, and Thermal Image: An Example of Miyakejima (Japan)"], "weko_shared_id": -1}