{"@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/1361699996074158208.json","@type":"Article","productIdentifier":[{"identifier":{"@type":"DOI","@value":"10.1073/pnas.0806596105"}},{"identifier":{"@type":"URI","@value":"https://pnas.org/doi/pdf/10.1073/pnas.0806596105"}},{"identifier":{"@type":"PMID","@value":"19001263"}}],"dc:title":[{"@value":"Toward understanding early Earth evolution: Prescription for approach from terrestrial noble gas and light element records in lunar soils"}],"description":[{"type":"abstract","notation":[{"@value":"<jats:p>Because of the almost total lack of geological record on the Earth's surface before 4 billion years ago, the history of the Earth during this period is still enigmatic. Here we describe a practical approach to tackle the formidable problems caused by this lack. We propose that examinations of lunar soils for light elements such as He, N, O, Ne, and Ar would shed a new light on this dark age in the Earth's history and resolve three of the most fundamental questions in earth science: the onset time of the geomagnetic field, the appearance of an oxygen atmosphere, and the secular variation of an Earth–Moon dynamical system.</jats:p>"}]}],"creator":[{"@id":"https://cir.nii.ac.jp/crid/1381699996074158208","@type":"Researcher","foaf:name":[{"@value":"Minoru Ozima"}],"jpcoar:affiliationName":[{"@value":"Graduate School of Earth and Planetary Sciences, University of Tokyo, Tokyo 113-0033, Japan;"}]},{"@id":"https://cir.nii.ac.jp/crid/1381699996074158338","@type":"Researcher","foaf:name":[{"@value":"Qing-Zhu Yin"}],"jpcoar:affiliationName":[{"@value":"Department of Geology, University of California, Davis, CA 95616;"}]},{"@id":"https://cir.nii.ac.jp/crid/1381699996074158337","@type":"Researcher","foaf:name":[{"@value":"Frank A. Podosek"}],"jpcoar:affiliationName":[{"@value":"Department of Earth and Planetary Sciences, Washington University, St. Louis, MO 63130; and"}]},{"@id":"https://cir.nii.ac.jp/crid/1381699996074158336","@type":"Researcher","foaf:name":[{"@value":"Yayoi N. Miura"}],"jpcoar:affiliationName":[{"@value":"Earthquake Research Institute, University of Tokyo, Tokyo 113-0032, Japan"}]}],"publication":{"publicationIdentifier":[{"@type":"PISSN","@value":"00278424"},{"@type":"EISSN","@value":"10916490"}],"prism:publicationName":[{"@value":"Proceedings of the National Academy of Sciences"}],"dc:publisher":[{"@value":"Proceedings of the National Academy of Sciences"}],"prism:publicationDate":"2008-11-18","prism:volume":"105","prism:number":"46","prism:startingPage":"17654","prism:endingPage":"17658"},"reviewed":"false","dcterms:accessRights":"http://purl.org/coar/access_right/c_abf2","dc:rights":["http://www.pnas.org/site/misc/userlicense.xhtml"],"url":[{"@id":"https://pnas.org/doi/pdf/10.1073/pnas.0806596105"}],"createdAt":"2008-11-11","modifiedAt":"2022-04-12","relatedProduct":[{"@id":"https://cir.nii.ac.jp/crid/1360846640867252096","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Evaluation of isotopic fractionation of oxygen ions escaping from terrestrial thermosphere"}]},{"@id":"https://cir.nii.ac.jp/crid/2050025942153241088","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"In situ observations of ions and magnetic field around Phobos : the mass spectrum analyzer (MSA) for the Martian Moons eXploration (MMX) mission"}]}],"dataSourceIdentifier":[{"@type":"CROSSREF","@value":"10.1073/pnas.0806596105"},{"@type":"OPENAIRE","@value":"doi_dedup___::be0101124258f440e7eac1dc020ac952"},{"@type":"CROSSREF","@value":"10.1186/s40623-021-01452-x_references_DOI_RRWamTDvXTbYlExShAPnGfIKrN4"},{"@type":"CROSSREF","@value":"10.1016/j.gca.2012.02.010_references_DOI_RRWamTDvXTbYlExShAPnGfIKrN4"}]}