{"@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/1362262946200420480.json","@type":"Article","productIdentifier":[{"identifier":{"@type":"DOI","@value":"10.1366/000370203322554473"}},{"identifier":{"@type":"URI","@value":"https://journals.sagepub.com/doi/pdf/10.1366/000370203322554473"}},{"identifier":{"@type":"PMID","@value":"14658145"}},{"identifier":{"@type":"NAID","@value":"30008952486"}}],"dc:title":[{"@value":"Micro-Raman Densimeter for CO<sub>2</sub> Inclusions in Mantle-Derived Minerals"}],"description":[{"type":"abstract","notation":[{"@value":"<jats:p> We investigated the applicability of Raman microprobe spectroscopy for determining the density of CO<jats:sub>2</jats:sub> in fluid inclusions in minerals of mantle-derived xenolith samples. A separation (Δ) between two Raman bands of CO<jats:sub>2</jats:sub> due to Fermi resonance can be a reliable densimeter for CO<jats:sub>2</jats:sub> fluid. The relationship between the density of CO<jats:sub>2</jats:sub> (g/cm<jats:sup>3</jats:sup>) and Δ(cm<jats:sup>−1</jats:sup>) can be expressed as: d = −0.03238697Δ<jats:sup>3</jats:sup> + 10.08428Δ<jats:sup>2</jats:sup> – 1046.189Δ + 36163.67. This equation was obtained from the Raman data on CO<jats:sub>2</jats:sub> fluid with densities from 0.1 to 1.21 g/cm<jats:sup>3</jats:sup>, including super critical fluids at 58–59 °C. The Δ value was constant with increasing temperature from room temperature to 200 °C. This indicates that the Raman densimeter is not affected by a possible rise in temperature, an artifact induced by the high flux of the incident laser. The minimum size of measurable inclusions is 1 μm, and the precision in the determination of Δ is 0.1 cm<jats:sup>−1</jats:sup>, corresponding to 0.02 g/cm<jats:sup>3</jats:sup> for inclusions of 1 μm in size. The precision can be better for larger inclusions. The micro-Raman densimeter can determine the density of CO<jats:sub>2</jats:sub> fluid inclusions over a wide range. In particular, densities of gas and mixtures of gas and liquid phases, which cannot be measured by microthermometry, can be determined. </jats:p>"}]}],"creator":[{"@id":"https://cir.nii.ac.jp/crid/1382262946200420481","@type":"Researcher","foaf:name":[{"@value":"Yoko Kawakami"}],"jpcoar:affiliationName":[{"@value":"Laboratory for Earthquake Chemistry, Graduate School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan"}]},{"@id":"https://cir.nii.ac.jp/crid/1382262946200420482","@type":"Researcher","foaf:name":[{"@value":"Junji Yamamoto"}],"jpcoar:affiliationName":[{"@value":"Laboratory for Earthquake Chemistry, Graduate School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan"}]},{"@id":"https://cir.nii.ac.jp/crid/1382262946200420480","@type":"Researcher","foaf:name":[{"@value":"Hiroyuki Kagi"}],"jpcoar:affiliationName":[{"@value":"Laboratory for Earthquake Chemistry, Graduate School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan"}]}],"publication":{"publicationIdentifier":[{"@type":"PISSN","@value":"00037028"},{"@type":"EISSN","@value":"19433530"}],"prism:publicationName":[{"@value":"Applied Spectroscopy"}],"dc:publisher":[{"@value":"SAGE Publications"}],"prism:publicationDate":"2003-11","prism:volume":"57","prism:number":"11","prism:startingPage":"1333","prism:endingPage":"1339"},"reviewed":"false","dc:rights":["https://journals.sagepub.com/page/policies/text-and-data-mining-license"],"url":[{"@id":"https://journals.sagepub.com/doi/pdf/10.1366/000370203322554473"}],"createdAt":"2004-04-21","modifiedAt":"2025-03-10","foaf:topic":[{"@id":"https://cir.nii.ac.jp/all?q=Geologic%20Sediments","dc:title":"Geologic Sediments"},{"@id":"https://cir.nii.ac.jp/all?q=Minerals","dc:title":"Minerals"},{"@id":"https://cir.nii.ac.jp/all?q=Miniaturization","dc:title":"Miniaturization"},{"@id":"https://cir.nii.ac.jp/all?q=Manometry","dc:title":"Manometry"},{"@id":"https://cir.nii.ac.jp/all?q=Reproducibility%20of%20Results","dc:title":"Reproducibility of Results"},{"@id":"https://cir.nii.ac.jp/all?q=Carbon%20Dioxide","dc:title":"Carbon Dioxide"},{"@id":"https://cir.nii.ac.jp/all?q=Spectrum%20Analysis,%20Raman","dc:title":"Spectrum Analysis, Raman"},{"@id":"https://cir.nii.ac.jp/all?q=Sensitivity%20and%20Specificity","dc:title":"Sensitivity and Specificity"},{"@id":"https://cir.nii.ac.jp/all?q=Phase%20Transition","dc:title":"Phase Transition"},{"@id":"https://cir.nii.ac.jp/all?q=Calibration","dc:title":"Calibration"},{"@id":"https://cir.nii.ac.jp/all?q=Pressure","dc:title":"Pressure"},{"@id":"https://cir.nii.ac.jp/all?q=Densitometry","dc:title":"Densitometry"}],"relatedProduct":[{"@id":"https://cir.nii.ac.jp/crid/1050025031481019008","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@language":"en","@value":"Thermal structure beneath Far Eastern Russia inferred from geothermobarometric analyses of mantle xenoliths: Direct evidence for high geothermal gradient in backarc lithosphere"}]},{"@id":"https://cir.nii.ac.jp/crid/1050287907213379968","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@language":"en","@value":"Experimental variable effects on laser heating of inclusions during Raman spectroscopic 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