{"@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/1360004236002427264.json","@type":"Article","productIdentifier":[{"identifier":{"@type":"DOI","@value":"10.1130/g34620.1"}},{"identifier":{"@type":"URI","@value":"http://pubs.geoscienceworld.org/geology/article-pdf/41/11/1167/3542850/1167.pdf"}}],"resourceType":"学術雑誌論文(journal article)","dc:title":[{"@value":"Carbon dioxide emission to Earth’s surface by deep-sea volcanism"}],"description":[{"notation":[{"@value":"Large amounts of CO 2 are transferred from Earth’s interior to the surface by volcanism. On a geological time scale, the rate of CO 2 emission has controlled the evolution of Earth’s atmosphere and climate, as well as the dynamic processes that take place in the mantle and core. The total rate of natural CO 2 emission from Earth has been estimated on the basis of CO 2 fl ux from arc, mid-ocean-ridge, and hotspot volcanism. However, previous estimates have overlooked the CO 2 emitted from a recently discovered type of volcanism—petit-spot volcanism—that occurs on the deep-sea fl oor. Here, we measure the CO 2 and H 2 O contents of glassy basalts produced by petit-spot volcanism and estimate the initial contents to be >5 wt% and 1.0–1.1 wt%, respectively. Based on these values and magma fl ux of petitspot volcanism, we show that the rate of CO 2 emission from petitspot volcanoes (2.7–5.4 × 10 11 g CO 2 yr –1 ) is a few percent of the CO 2 emissions from arc and mid-ocean-ridge volcanism, and up to ~14% of that from hotspot volcanism. Thus, the contribution to the carbon cycle on Earth of the large amounts of CO 2 that have been emitted from the deep-sea fl oor by petit-spot volcanism has not previously been recognized."}]}],"creator":[{"@id":"https://cir.nii.ac.jp/crid/1420564276163079552","@type":"Researcher","personIdentifier":[{"@type":"KAKEN_RESEARCHERS","@value":"40532213"},{"@type":"NRID","@value":"1000040532213"},{"@type":"NRID","@value":"9000004600631"},{"@type":"NRID","@value":"9000361693289"},{"@type":"NRID","@value":"9000406037600"},{"@type":"NRID","@value":"9000403041745"},{"@type":"NRID","@value":"9000262360120"},{"@type":"NRID","@value":"9000399838487"},{"@type":"NRID","@value":"9000288834129"},{"@type":"NRID","@value":"9000375859954"},{"@type":"NRID","@value":"9000415397470"},{"@type":"NRID","@value":"9000024123040"},{"@type":"RESEARCHMAP","@value":"https://researchmap.jp/satoshiokumura"}],"foaf:name":[{"@value":"Satoshi Okumura"}]},{"@id":"https://cir.nii.ac.jp/crid/1380004236002427521","@type":"Researcher","foaf:name":[{"@value":"Naoto Hirano"}]}],"publication":{"publicationIdentifier":[{"@type":"EISSN","@value":"19432682"},{"@type":"PISSN","@value":"00917613"}],"prism:publicationName":[{"@value":"Geology"}],"dc:publisher":[{"@value":"Geological Society of America"}],"prism:publicationDate":"2013-11","prism:volume":"41","prism:number":"11","prism:startingPage":"1167","prism:endingPage":"1170"},"reviewed":"false","dcterms:accessRights":"http://purl.org/coar/access_right/c_abf2","url":[{"@id":"http://pubs.geoscienceworld.org/geology/article-pdf/41/11/1167/3542850/1167.pdf"}],"createdAt":"2013-09-07","modifiedAt":"2020-06-05","project":[{"@id":"https://cir.nii.ac.jp/crid/1040000782227720192","@type":"Project","projectIdentifier":[{"@type":"KAKEN","@value":"24740299"},{"@type":"JGN","@value":"JP24740299"},{"@type":"URI","@value":"https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-24740299/"}],"notation":[{"@language":"ja","@value":"火山噴火の爆発性とマグマの変形集中の定量的関係の解明"},{"@language":"en","@value":"Strain localization in magma and its roles in volcanic eruptions"}]}],"relatedProduct":[{"@id":"https://cir.nii.ac.jp/crid/1050001202758965504","@type":"Article","resourceType":"学術雑誌論文(journal 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