{"@context":{"@vocab":"https://cir.nii.ac.jp/schema/1.0/","rdfs":"http://www.w3.org/2000/01/rdf-schema#","dc":"http://purl.org/dc/elements/1.1/","dcterms":"http://purl.org/dc/terms/","foaf":"http://xmlns.com/foaf/0.1/","prism":"http://prismstandard.org/namespaces/basic/2.0/","cinii":"http://ci.nii.ac.jp/ns/1.0/","datacite":"https://schema.datacite.org/meta/kernel-4/","ndl":"http://ndl.go.jp/dcndl/terms/","jpcoar":"https://github.com/JPCOAR/schema/blob/master/2.0/"},"@id":"https://cir.nii.ac.jp/crid/1361981471463639936.json","@type":"Article","productIdentifier":[{"identifier":{"@type":"DOI","@value":"10.1007/s00445-001-0187-9"}},{"identifier":{"@type":"URI","@value":"http://link.springer.com/content/pdf/10.1007/s00445-001-0187-9.pdf"}},{"identifier":{"@type":"URI","@value":"http://link.springer.com/article/10.1007/s00445-001-0187-9/fulltext.html"}},{"identifier":{"@type":"URI","@value":"http://link.springer.com/content/pdf/10.1007/s00445-001-0187-9"}}],"dc:title":[{"@value":"Petrological study of Nasu-Chausudake Volcano (ca. 16 ka to Present), northeastern Japan"}],"description":[{"notation":[{"@value":"Chausudake Volcano is representative of the active volcanoes in northeastern Japan, and has a record of many historical eruptions. Because its 16-ky eruptive history is well documented, Chausudake is well-suited for examining the temporal change of magma chamber processes and for assessing potential hazards. The activity of the Chausudake Volcano can be divided into six magmatic units (CH1–CH6). Most of its products have similar characteristics, but those from unit CH1 show wider variation. Most rocks are andesite and have plagioclase, clinopyroxene, orthopyroxene, and Fe–Ti oxides as phenocrysts, with or without olivine or quartz. Mafic inclusions, which are observed in most products, are basaltic andesites that have various combinations of the same phenocryst species. Petrographic features observed in host rocks and mafic inclusions, such as disequilibrium phenocrysts and resorbed textures, suggest magma mixing/co-mingling. Whole rock compositions of both host rocks and mafic inclusions show linear trends in variation diagrams, which suggest that the rocks are derived from the mixing/co-mingling between mafic and felsic end members. Bulk silica content of the mafic end-member magma is estimated to be ca. 52%, and contains Mg-rich olivine and An-rich plagioclase. The temperature of this end member is estimated to have been higher than 1,100 °C. Bulk silica content of the felsic end-member magma is estimated to be ~66%, and contains Mg-poor pyroxenes, An-poor plagioclase, and quartz phenocrysts, with a temperature of between 800 and 900 °C. Trace element compositions show that the end members have different origins, but have changed little over the entire 16-ky of activity. The mafic end-member magmas might come from a lower-crustal homogeneous, large magma chamber, whereas the felsic end-member magmas may be partial melts of crustal materials produced by the heat of the mafic end member. Felsic end-member magma may have accumulated in the middle crust before CH1 activity. The mixing ratio of the felsic to mafic end members was 0.5:0.5 to 0.4:0.6 for the CH1 unit, and ca. 0.4:0.6 for the other units. Considering that ca. 75% of the total volume of the eruptive products form the first unit, its wider compositional variation is attributed to more heterogeneous mixing ratios."}]}],"creator":[{"@id":"https://cir.nii.ac.jp/crid/1381981471463639936","@type":"Researcher","foaf:name":[{"@value":"Masao Ban"}]},{"@id":"https://cir.nii.ac.jp/crid/1381981471463639937","@type":"Researcher","foaf:name":[{"@value":"Takahiro Yamamoto"}]}],"publication":{"publicationIdentifier":[{"@type":"PISSN","@value":"02588900"}],"prism:publicationName":[{"@value":"Bulletin of Volcanology"}],"dc:publisher":[{"@value":"Springer Science and Business Media LLC"}],"prism:publicationDate":"2002-04-01","prism:volume":"64","prism:number":"2","prism:startingPage":"100","prism:endingPage":"116"},"reviewed":"false","dc:rights":["http://www.springer.com/tdm"],"url":[{"@id":"http://link.springer.com/content/pdf/10.1007/s00445-001-0187-9.pdf"},{"@id":"http://link.springer.com/article/10.1007/s00445-001-0187-9/fulltext.html"},{"@id":"http://link.springer.com/content/pdf/10.1007/s00445-001-0187-9"}],"createdAt":"2003-02-13","modifiedAt":"2019-05-29","relatedProduct":[{"@id":"https://cir.nii.ac.jp/crid/1360004232342622464","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Evolution of magma feeding system in Kumanodake agglutinate activity, Zao Volcano, northeastern Japan"}]},{"@id":"https://cir.nii.ac.jp/crid/1360285711231218944","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Evolution of late Cenozoic magmatism and the crust–mantle structure in the NE Japan Arc"}]},{"@id":"https://cir.nii.ac.jp/crid/1390001206525007616","@type":"Article","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@language":"en","@value":"Petrologic study of tholeiitic series from the Inaniwadake district, Northeast Japan arc: The high-temperatyre type tholeiitic magma erupted during Pliocene"},{"@language":"ja","@value":"東北日本弧，稲庭岳に産するソレアイト系列岩の岩石学的研究―鮮新世の噴出した高温タイプのソレアイトマグマ―"},{"@value":"東北日本弧,稲庭岳に産するソレアイト系列岩の岩石学的研究--鮮新世に噴出した高温タイプのソレアイトマグマ"},{"@language":"ja-Kana","@value":"トウホク ニホン コ イナニワダケ ニ サンスル ソレアイト ケイレツガン ノ ガンセキガクテキ ケンキュウ センシンセイ ニ フンシュツ シタ コウオン タイプ ノ ソレアイトマグマ"},{"@value":"Petrologic study of tholeiitic series from the Inaniwadake district, Northeast Japan arc: The high-temperature type tholeiitic magma erupted during Pliocene"}]},{"@id":"https://cir.nii.ac.jp/crid/1390014194596036480","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@language":"en","@value":"Eruption history and magma plumbing system of Futamatayama Volcano, southern Fukushima, Japan"},{"@language":"ja","@value":"福島県南部，二岐山火山の噴火史とマグマ供給系"}]},{"@id":"https://cir.nii.ac.jp/crid/1390290307611345536","@type":"Article","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@language":"ja","@value":"那須火山群周辺の中期〜後期更新世テフラ層序： 川谷降下火砕物の新記載と余笹川・東岩崎岩屑なだれ堆積物の層準"},{"@language":"en","@value":"The Middle to Late Pleistocene tephrostratigraphy around the Nasu Volcano Group, NE Japan: new description of the Kawatani Pyroclastic Fall Deposit and the horizon of the Yosasagawa and Higashi-iwazaki Debris Avalanche Deposits"},{"@language":"ja-Kana","@value":"ナスカザングン シュウヘン ノ チュウキ~コウキ コウシン セイ テフラソウ ジョ : カワダニコウシタビサイブツ ノ シン キサイ ト ヨ ササガワ ・ ヒガシイワサキ ガンセツナダレ タイセキブツ ノ ソウ ジュン"}]},{"@id":"https://cir.nii.ac.jp/crid/2051714791989627520","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Temporal variations in volumetric magma eruption rates of Quaternary volcanoes in Japan"}]}],"dataSourceIdentifier":[{"@type":"CROSSREF","@value":"10.1007/s00445-001-0187-9"},{"@type":"OPENAIRE","@value":"doi_dedup___::4d1e4490706221955aa39609f6ac4d50"},{"@type":"CROSSREF","@value":"10.1144/sp385.15_references_DOI_FjQpoqmnATDiBs9VNYP4wNQXdtv"},{"@type":"CROSSREF","@value":"10.1186/s40623-018-0849-x_references_DOI_FjQpoqmnATDiBs9VNYP4wNQXdtv"},{"@type":"CROSSREF","@value":"10.2465/gkk.35.78_references_DOI_FjQpoqmnATDiBs9VNYP4wNQXdtv"},{"@type":"CROSSREF","@value":"10.5575/geosoc.2022.0061_references_DOI_FjQpoqmnATDiBs9VNYP4wNQXdtv"},{"@type":"CROSSREF","@value":"10.9795/bullgsj.72.397_references_DOI_FjQpoqmnATDiBs9VNYP4wNQXdtv"},{"@type":"CROSSREF","@value":"10.1016/j.jvolgeores.2015.07.030_references_DOI_FjQpoqmnATDiBs9VNYP4wNQXdtv"}]}