{"@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/1363670320455332864.json","@type":"Article","productIdentifier":[{"identifier":{"@type":"DOI","@value":"10.1029/1998jb900111"}},{"identifier":{"@type":"URI","@value":"https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1029%2F1998JB900111"}},{"identifier":{"@type":"URI","@value":"https://agupubs.onlinelibrary.wiley.com/doi/pdf/10.1029/1998JB900111"}}],"dc:title":[{"@value":"Partial‐melt electrical conductivity: Influence of melt composition"}],"description":[{"type":"abstract","notation":[{"@value":"<jats:p>The electrical conductivity of a partial melt is influenced by many factors, including melt conductivity, crystalline conductivity, and melt fraction, each of which is influenced by temperature. We have performed measurements of bulk conductivity as a function of temperature of an Fo<jats:sub>80</jats:sub>‐basalt partial melt between 684° and 1244°C at controlled oxygen fugacity. Melt fraction and composition variations with temperature calculated using MELTS [Ghiorso and Sack, 1995] indicate that the effect on melt conductivity of changing melt composition is balanced by changes in temperature (T). Thus bulk conductivity as a function of T or melt fraction in this system can be calculated assuming a constant melt conductivity. The bulk conductivity is well modeled by simple parallel calculations, by the Hashin‐Shtrikman upper bound, or by Archie's law (σ<jats:sub>partial</jats:sub> <jats:sub>melt</jats:sub>/σ<jats:sub>melt</jats:sub> = <jats:italic>C</jats:italic><jats:sub>1</jats:sub>X<jats:sub><jats:italic>m</jats:italic></jats:sub><jats:sup>n</jats:sup>). We estimate apparent values of the Archie's law parameters between 1150° and 1244°C as <jats:italic>C</jats:italic><jats:sub>1</jats:sub> = 0.73 ± 0.02 and <jats:italic>n</jats:italic> = 0.98 ±0.01. Estimates of the permeability of the system are obtained by using an electrical conductivity‐critical scale length relationship and range from ∼10<jats:sup>−14</jats:sup> to 10<jats:sup>−18</jats:sup> m<jats:sup>2</jats:sup>, comparing favorably with previously published values.</jats:p>"}]}],"creator":[{"@id":"https://cir.nii.ac.jp/crid/1383670320455332865","@type":"Researcher","foaf:name":[{"@value":"Jeffery J. Roberts"}]},{"@id":"https://cir.nii.ac.jp/crid/1383670320455332864","@type":"Researcher","foaf:name":[{"@value":"James A. Tyburczy"}]}],"publication":{"publicationIdentifier":[{"@type":"PISSN","@value":"01480227"}],"prism:publicationName":[{"@value":"Journal of Geophysical Research: Solid Earth"}],"dc:publisher":[{"@value":"American Geophysical Union (AGU)"}],"prism:publicationDate":"1999-04-10","prism:volume":"104","prism:number":"B4","prism:startingPage":"7055","prism:endingPage":"7065"},"reviewed":"false","dc:rights":["http://onlinelibrary.wiley.com/termsAndConditions#vor"],"url":[{"@id":"https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1029%2F1998JB900111"},{"@id":"https://agupubs.onlinelibrary.wiley.com/doi/pdf/10.1029/1998JB900111"}],"createdAt":"2002-09-17","modifiedAt":"2023-09-22","relatedProduct":[{"@id":"https://cir.nii.ac.jp/crid/1360004232135301632","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Electrical conductivity of dense hydrous magnesium silicates with implication for conductivity in the stagnant 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