{"@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/1360292618683028352.json","@type":"Article","productIdentifier":[{"identifier":{"@type":"DOI","@value":"10.1016/s0009-2541(98)00199-5"}},{"identifier":{"@type":"URI","@value":"https://api.elsevier.com/content/article/PII:S0009254198001995?httpAccept=text/xml"}},{"identifier":{"@type":"URI","@value":"https://api.elsevier.com/content/article/PII:S0009254198001995?httpAccept=text/plain"}}],"dc:title":[{"@value":"Geochemistry of high Mg andesites and the tectonic evolution of the Okinawa Trough–Ryukyu arc system"}],"description":[{"notation":[{"@value":"Abstract   Mineral chemistry, major- and trace-elements, and Sr–Nd isotopic compositions of high magnesian andesites and basalt from the central and southern Ryukyu arc, Japan, provide insight into the nature of the mantle wedge and reflect the magmatic evolution of the Okinawa Trough back-arc basin. The high-Mg andesites and basalts (∼6 Ma) from the central Ryukyu islands exhibit enrichment of large-ion-lithophile elements (LILE) relative to high-field-strength elements (HFSE), typical of subduction-related lavas. These rocks are distinct in having low       87   Sr  /     86   Sr    (0.7033–0.7035) and high       143   Nd  /     144   Nd    (0.5129–0.5130) relative to the contemporaneously erupted calc-alkaline rocks in the region and the Okinawa Trough basalts. High-Mg andesites from Central Ryukyu are similar to adakitic high-Mg andesites, except for their low La/Yb (∼6) compared to that of adakites (>20). The combination of passive asthenospheric upwelling, induced by mid to late Miocene rifting of the Okinawa Trough, and a thermal rebound due to a ∼10–6 Ma subduction hiatus of the Philippine Sea Plate, probably resulted in a high geothermal gradient beneath the arc that eventually caused partial melting of the subducted slab. Subsequent interaction of the slab-melts with the overlying mantle wedge produced adakite-like high-Mg andesites at shallow level ("}]}],"creator":[{"@id":"https://cir.nii.ac.jp/crid/1420845751149255808","@type":"Researcher","personIdentifier":[{"@type":"KAKEN_RESEARCHERS","@value":"30244289"},{"@type":"NRID","@value":"1000030244289"},{"@type":"NRID","@value":"9000237920123"},{"@type":"NRID","@value":"9000237920124"},{"@type":"NRID","@value":"9000002018204"},{"@type":"NRID","@value":"9000237920134"},{"@type":"NRID","@value":"9000237915750"},{"@type":"NRID","@value":"9000237915749"},{"@type":"NRID","@value":"9000254530068"},{"@type":"NRID","@value":"9000254529996"},{"@type":"NRID","@value":"9000400160919"},{"@type":"NRID","@value":"9000390874044"},{"@type":"NRID","@value":"9000345279812"},{"@type":"NRID","@value":"9000398987813"},{"@type":"NRID","@value":"9000283638189"},{"@type":"NRID","@value":"9000414744467"},{"@type":"NRID","@value":"9000288834431"},{"@type":"NRID","@value":"9000405523291"},{"@type":"NRID","@value":"9000370281366"},{"@type":"NRID","@value":"9000414744577"},{"@type":"NRID","@value":"9000019115091"},{"@type":"NRID","@value":"9000006809427"},{"@type":"NRID","@value":"9000296661816"},{"@type":"NRID","@value":"9000254529851"},{"@type":"NRID","@value":"9000017389141"},{"@type":"NRID","@value":"9000018461342"},{"@type":"NRID","@value":"9000345221591"},{"@type":"NRID","@value":"9000402897153"},{"@type":"NRID","@value":"9000273021476"},{"@type":"NRID","@value":"9000010277383"},{"@type":"NRID","@value":"9000347188191"},{"@type":"NRID","@value":"9000243881690"},{"@type":"NRID","@value":"9000345295747"},{"@type":"NRID","@value":"9000253568830"},{"@type":"NRID","@value":"9000021307684"},{"@type":"NRID","@value":"9000018654847"},{"@type":"NRID","@value":"9000379609503"},{"@type":"NRID","@value":"9000406353913"},{"@type":"NRID","@value":"9000402249888"},{"@type":"NRID","@value":"9000403550811"},{"@type":"NRID","@value":"9000408783056"},{"@type":"RESEARCHMAP","@value":"https://researchmap.jp/shinjo-ryuichi"}],"foaf:name":[{"@value":"Ryuichi Shinjo"}]}],"publication":{"publicationIdentifier":[{"@type":"PISSN","@value":"00092541"}],"prism:publicationName":[{"@value":"Chemical Geology"}],"dc:publisher":[{"@value":"Elsevier BV"}],"prism:publicationDate":"1999-05","prism:volume":"157","prism:number":"1-2","prism:startingPage":"69","prism:endingPage":"88"},"reviewed":"false","dc:rights":["https://www.elsevier.com/tdm/userlicense/1.0/"],"url":[{"@id":"https://api.elsevier.com/content/article/PII:S0009254198001995?httpAccept=text/xml"},{"@id":"https://api.elsevier.com/content/article/PII:S0009254198001995?httpAccept=text/plain"}],"createdAt":"2002-07-25","modifiedAt":"2020-01-08","relatedProduct":[{"@id":"https://cir.nii.ac.jp/crid/1360004232352976896","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Early to Middle Pleistocene paleoceanographic history of southern Japan based on radiolarian data from IODP Exp. 314/315 Sites C0001 and C0002"}]},{"@id":"https://cir.nii.ac.jp/crid/1360285707329572608","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"A newly discovered submerged reef on the Miyako-Sone platform, Ryukyu Island Arc, Northwestern Pacific"}]},{"@id":"https://cir.nii.ac.jp/crid/1360290617880878848","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Zircon U–Pb ages of Miocene granitic rocks in the Koshikijima Islands: Implications for Neogene tectonics in the Kyushu region, <scp>southwest</scp> Japan"}]},{"@id":"https://cir.nii.ac.jp/crid/1360565165890706304","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Tracing subducted sediment inputs to the Ryukyu arc-Okinawa Trough system: Evidence from thallium isotopes"}]},{"@id":"https://cir.nii.ac.jp/crid/1360565168428684288","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Geochemistry and geochronology of the Troodos ophiolite: An SSZ ophiolite generated by subduction initiation and an extended episode of ridge subduction?"}]},{"@id":"https://cir.nii.ac.jp/crid/1360567183980906752","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"High-Nb hawaiite–mugearite and high-Mg calc-alkaline lavas from northeastern Iran: Oligo-Miocene melts from modified mantle wedge"}]},{"@id":"https://cir.nii.ac.jp/crid/1360567185481240704","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Chronological and paleoceanographic constraints of<scp>M</scp>iocene to<scp>P</scp>liocene ‘mud sea’ in the<scp>R</scp>yukyu<scp>I</scp>slands (southwestern<scp>J</scp>apan) based on calcareous nannofossil assemblages"}]},{"@id":"https://cir.nii.ac.jp/crid/1360567185481257216","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Subsidence of the <scp>M</scp>iyako‐<scp>S</scp>one submarine carbonate platform, east of <scp>M</scp>iyako‐jima <scp>I</scp>sland, northwestern <scp>P</scp>acific <scp>O</scp>cean"}]},{"@id":"https://cir.nii.ac.jp/crid/1360869855104043008","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Effects of Hot Plumes and Slab Rheology on the Bending of the Philippine Sea Slab at Shallow Depths Beneath the Kyushu Region, Southwest Japan"}]},{"@id":"https://cir.nii.ac.jp/crid/1390001206525046016","@type":"Article","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@language":"en","@value":"Whole-rock K-Ar age for a basaltic andesite from the Uegusukudake Formation in Kume-jima, Central Ryukyu Arc."},{"@language":"ja","@value":"中琉球弧久米島宇江城岳層の玄武岩質安山岩の全岩Ｋ‐Ａｒ年代"},{"@value":"中琉球弧久米島宇江城岳層の玄武岩質安山岩の全岩K-Ar年代"},{"@language":"ja-Kana","@value":"チュウ リュウキュウ コ クメジマ ウエグスクダケソウ ノ ゲンブガンシツ アンザンガン ノ ゼン ガン K Ar ネンダイ"}]},{"@id":"https://cir.nii.ac.jp/crid/1521417755424940288","@type":"Article","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Phylogeography of Semiterrestrial Isopod, Tylos granuliferus, on East Asian Coasts"}]},{"@id":"https://cir.nii.ac.jp/crid/2051996266838193408","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Transitional changes in microfossil assemblages in the Japan Sea from the Late Pliocene to Early Pleistocene related to global climatic and local tectonic events"}]}],"dataSourceIdentifier":[{"@type":"CROSSREF","@value":"10.1016/s0009-2541(98)00199-5"},{"@type":"OPENAIRE","@value":"doi_dedup___::b5c00d01e3ea9c03e1733b8006d5cb9f"},{"@type":"CROSSREF","@value":"10.1130/l205.1_references_DOI_Q5c1xyb6XTO4v3w5vdKHBNdpMes"},{"@type":"CROSSREF","@value":"10.1186/s40645-016-0087-4_references_DOI_Q5c1xyb6XTO4v3w5vdKHBNdpMes"},{"@type":"CROSSREF","@value":"10.1016/j.marmicro.2015.05.001_references_DOI_Q5c1xyb6XTO4v3w5vdKHBNdpMes"},{"@type":"CROSSREF","@value":"10.2465/gkk.30.237_references_DOI_Q5c1xyb6XTO4v3w5vdKHBNdpMes"},{"@type":"CROSSREF","@value":"10.1111/iar.12383_references_DOI_Q5c1xyb6XTO4v3w5vdKHBNdpMes"},{"@type":"CROSSREF","@value":"10.1080/00206814.2017.1416502_references_DOI_Q5c1xyb6XTO4v3w5vdKHBNdpMes"},{"@type":"CROSSREF","@value":"10.1111/iar.12046_references_DOI_Q5c1xyb6XTO4v3w5vdKHBNdpMes"},{"@type":"CROSSREF","@value":"10.1111/iar.12051_references_DOI_Q5c1xyb6XTO4v3w5vdKHBNdpMes"},{"@type":"CROSSREF","@value":"10.1016/j.margeo.2016.01.007_references_DOI_Q5c1xyb6XTO4v3w5vdKHBNdpMes"},{"@type":"CROSSREF","@value":"10.1007/s00024-024-03616-8_references_DOI_Q5c1xyb6XTO4v3w5vdKHBNdpMes"},{"@type":"CROSSREF","@value":"10.1016/j.gca.2017.08.035_references_DOI_Q5c1xyb6XTO4v3w5vdKHBNdpMes"},{"@type":"CROSSREF","@value":"10.2108/zs140004_references_DOI_Q5c1xyb6XTO4v3w5vdKHBNdpMes"}]}