{"@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/1361699994631218176.json","@type":"Article","productIdentifier":[{"identifier":{"@type":"DOI","@value":"10.1029/2007je002887"}},{"identifier":{"@type":"URI","@value":"https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1029%2F2007JE002887"}},{"identifier":{"@type":"URI","@value":"https://agupubs.onlinelibrary.wiley.com/doi/pdf/10.1029/2007JE002887"}}],"dc:title":[{"@value":"Concentration of H, Si, Cl, K, Fe, and Th in the low‐ and mid‐latitude regions of Mars"}],"description":[{"type":"abstract","notation":[{"@value":"<jats:p>We report maps of the concentrations of H, Si, Cl, K, Fe, and Th as determined by the Gamma Ray Spectrometer (GRS) on board the 2001 Mars Odyssey Mission for ±∼45° latitudes. The procedures by which the spectra are processed to yield quantitative concentrations are described in detail. The concentrations of elements determined over the locations of the various Mars landers generally agree well with the lander values except for Fe, although the mean of the GRS Fe data agrees well with that of Martian meteorites. The water‐equivalent concentration of hydrogen by mass varies from about 1.5% to 7.5% (by mass) with the most enriched areas being near Apollinaris Patera and Arabia Terra. Cl shows a distribution similar to H over the surface except that the Cl content over Medusae Fossae is much greater than elsewhere. The map of Fe shows enrichment in the northern lowlands versus the southern highlands. Silicon shows only very modest variation over the surface with mass fractions ranging from 19% to 22% over most of the planet, though a significant depletion in Si is noted in a region west of Tharsis Montes and Olympus Mons where the Si content is as low as 18%. K and Th show a very similar pattern with depletions associated with young volcanic deposits and enrichments associated with the TES Surface Type‐2 material. It is noted that there appears to be no evidence of significant globally distributed thick dust deposits of uniform composition.</jats:p>"}]}],"creator":[{"@id":"https://cir.nii.ac.jp/crid/1381699994631218056","@type":"Researcher","foaf:name":[{"@value":"W. V. Boynton"}],"jpcoar:affiliationName":[{"@value":"Lunar and Planetary Laboratory University of Arizona  Tucson Arizona USA"}]},{"@id":"https://cir.nii.ac.jp/crid/1381699994631218189","@type":"Researcher","foaf:name":[{"@value":"G. J. Taylor"}],"jpcoar:affiliationName":[{"@value":"Institute of Geophysics and Planetology University of Hawaii at Manoa  Honolulu Hawaii USA"}]},{"@id":"https://cir.nii.ac.jp/crid/1381699994631218190","@type":"Researcher","foaf:name":[{"@value":"L. G. Evans"}],"jpcoar:affiliationName":[{"@value":"Science Programs Computer Sciences Corporation  Lanham Maryland USA"}]},{"@id":"https://cir.nii.ac.jp/crid/1381699994631218181","@type":"Researcher","foaf:name":[{"@value":"R. C. Reedy"}],"jpcoar:affiliationName":[{"@value":"Institute of Meteoritics University of New Mexico  Albuquerque New Mexico USA"}]},{"@id":"https://cir.nii.ac.jp/crid/1381699994631218179","@type":"Researcher","foaf:name":[{"@value":"R. Starr"}],"jpcoar:affiliationName":[{"@value":"Department of Physics Catholic University of America  Washington D. C. USA"}]},{"@id":"https://cir.nii.ac.jp/crid/1381699994631218051","@type":"Researcher","foaf:name":[{"@value":"D. M. Janes"}],"jpcoar:affiliationName":[{"@value":"Lunar and Planetary Laboratory University of Arizona  Tucson Arizona USA"}]},{"@id":"https://cir.nii.ac.jp/crid/1381699994631218182","@type":"Researcher","foaf:name":[{"@value":"K. E. Kerry"}],"jpcoar:affiliationName":[{"@value":"Lunar and Planetary Laboratory University of Arizona  Tucson Arizona USA"}]},{"@id":"https://cir.nii.ac.jp/crid/1381699994631218192","@type":"Researcher","foaf:name":[{"@value":"D. M. Drake"}],"jpcoar:affiliationName":[{"@value":"TechSource  Santa Fe New Mexico USA"}]},{"@id":"https://cir.nii.ac.jp/crid/1381699994631218048","@type":"Researcher","foaf:name":[{"@value":"K. J. Kim"}],"jpcoar:affiliationName":[{"@value":"Lunar and Planetary Laboratory University of Arizona  Tucson Arizona USA"},{"@value":"Institute of Meteoritics University of New Mexico  Albuquerque New Mexico USA"}]},{"@id":"https://cir.nii.ac.jp/crid/1381699994631218186","@type":"Researcher","foaf:name":[{"@value":"R. M. S. Williams"}],"jpcoar:affiliationName":[{"@value":"Lunar and Planetary Laboratory University of Arizona  Tucson Arizona USA"}]},{"@id":"https://cir.nii.ac.jp/crid/1381699994631218177","@type":"Researcher","foaf:name":[{"@value":"M. K. Crombie"}],"jpcoar:affiliationName":[{"@value":"Lunar and Planetary Laboratory University of Arizona  Tucson Arizona USA"}]},{"@id":"https://cir.nii.ac.jp/crid/1381699994631218188","@type":"Researcher","foaf:name":[{"@value":"J. M. Dohm"}],"jpcoar:affiliationName":[{"@value":"Department of Hydrology and Water Resources University of Arizona  Tucson Arizona USA"}]},{"@id":"https://cir.nii.ac.jp/crid/1381699994631218176","@type":"Researcher","foaf:name":[{"@value":"V. Baker"}],"jpcoar:affiliationName":[{"@value":"Department of Hydrology and Water Resources University of Arizona  Tucson Arizona USA"}]},{"@id":"https://cir.nii.ac.jp/crid/1381699994631218053","@type":"Researcher","foaf:name":[{"@value":"A. E. Metzger"}],"jpcoar:affiliationName":[{"@value":"Jet Propulsion Laboratory California Institute of Technology  Pasadena California USA"}]},{"@id":"https://cir.nii.ac.jp/crid/1381699994631218058","@type":"Researcher","foaf:name":[{"@value":"S. Karunatillake"}],"jpcoar:affiliationName":[{"@value":"Center for Radiophysics and Space Research Cornell University  Ithaca New York USA"}]},{"@id":"https://cir.nii.ac.jp/crid/1381699994631218054","@type":"Researcher","foaf:name":[{"@value":"J. M. Keller"}],"jpcoar:affiliationName":[{"@value":"Lunar and Planetary Laboratory University of Arizona  Tucson Arizona USA"}]},{"@id":"https://cir.nii.ac.jp/crid/1381699994631218178","@type":"Researcher","foaf:name":[{"@value":"H. E. Newsom"}],"jpcoar:affiliationName":[{"@value":"Institute of Meteoritics University of New Mexico  Albuquerque New Mexico USA"}]},{"@id":"https://cir.nii.ac.jp/crid/1381699994631218055","@type":"Researcher","foaf:name":[{"@value":"J. R. Arnold"}],"jpcoar:affiliationName":[{"@value":"Department of Chemistry University of California, San Diego  La Jolla California USA"}]},{"@id":"https://cir.nii.ac.jp/crid/1381699994631218050","@type":"Researcher","foaf:name":[{"@value":"J. Brückner"}],"jpcoar:affiliationName":[{"@value":"Max‐Planck‐Institut für Chemie  Mainz Germany"}]},{"@id":"https://cir.nii.ac.jp/crid/1381699994631218185","@type":"Researcher","foaf:name":[{"@value":"P. A. J. Englert"}],"jpcoar:affiliationName":[{"@value":"Institute of Geophysics and Planetology University of Hawaii at Manoa  Honolulu Hawaii USA"}]},{"@id":"https://cir.nii.ac.jp/crid/1381699994631218057","@type":"Researcher","foaf:name":[{"@value":"O. Gasnault"}],"jpcoar:affiliationName":[{"@value":"Centre d'Etude Spatiale des Rayonnements CNRS/UPS  Toulouse France"}]},{"@id":"https://cir.nii.ac.jp/crid/1381699994631218187","@type":"Researcher","foaf:name":[{"@value":"A. L. Sprague"}],"jpcoar:affiliationName":[{"@value":"Lunar and Planetary Laboratory University of Arizona  Tucson Arizona USA"}]},{"@id":"https://cir.nii.ac.jp/crid/1381699994631218191","@type":"Researcher","foaf:name":[{"@value":"I. Mitrofanov"}],"jpcoar:affiliationName":[{"@value":"Space Research Institute (IKI)  Moscow Russia"}]},{"@id":"https://cir.nii.ac.jp/crid/1381699994631218180","@type":"Researcher","foaf:name":[{"@value":"S. W. Squyres"}],"jpcoar:affiliationName":[{"@value":"Center for Radiophysics and Space Research Cornell University  Ithaca New York USA"}]},{"@id":"https://cir.nii.ac.jp/crid/1381699994631218184","@type":"Researcher","foaf:name":[{"@value":"J. I. Trombka"}],"jpcoar:affiliationName":[{"@value":"NASA Goddard Space Flight Center  Greenbelt Maryland USA"}]},{"@id":"https://cir.nii.ac.jp/crid/1381699994631218052","@type":"Researcher","foaf:name":[{"@value":"L. d'Uston"}],"jpcoar:affiliationName":[{"@value":"Centre d'Etude Spatiale des Rayonnements CNRS/UPS  Toulouse France"}]},{"@id":"https://cir.nii.ac.jp/crid/1381699994631218049","@type":"Researcher","foaf:name":[{"@value":"H. Wänke"}],"jpcoar:affiliationName":[{"@value":"Max‐Planck‐Institut für Chemie  Mainz Germany"}]},{"@id":"https://cir.nii.ac.jp/crid/1381699994631218183","@type":"Researcher","foaf:name":[{"@value":"D. K. Hamara"}],"jpcoar:affiliationName":[{"@value":"Lunar and Planetary Laboratory University of Arizona  Tucson Arizona USA"}]}],"publication":{"publicationIdentifier":[{"@type":"PISSN","@value":"01480227"}],"prism:publicationName":[{"@value":"Journal of Geophysical Research: Planets"}],"dc:publisher":[{"@value":"American Geophysical Union (AGU)"}],"prism:publicationDate":"2007-12","prism:volume":"112","prism:number":"E12","prism:startingPage":"E12S99"},"reviewed":"false","dc:rights":["http://onlinelibrary.wiley.com/termsAndConditions#vor"],"url":[{"@id":"https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1029%2F2007JE002887"},{"@id":"https://agupubs.onlinelibrary.wiley.com/doi/pdf/10.1029/2007JE002887"}],"createdAt":"2007-12-20","modifiedAt":"2023-10-12","relatedProduct":[{"@id":"https://cir.nii.ac.jp/crid/1360285709358677632","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"<i>FERMI</i>OBSERVATIONS OF γ-RAY EMISSION FROM THE MOON"}]},{"@id":"https://cir.nii.ac.jp/crid/1360290617558693504","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Early oxidation of the martian crust triggered by impacts"}]},{"@id":"https://cir.nii.ac.jp/crid/1360567185751455616","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"The potential science and engineering value of samples delivered to Earth by Mars sample return"}]},{"@id":"https://cir.nii.ac.jp/crid/1360568468126136832","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Measuring the Elemental Composition of Phobos: The Mars‐moon Exploration with GAmma rays and NEutrons (MEGANE) Investigation for the Martian Moons eXploration (MMX) Mission"}]},{"@id":"https://cir.nii.ac.jp/crid/1360848654737131520","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Assessing the geologic evolution of Greater Thaumasia, Mars"}]},{"@id":"https://cir.nii.ac.jp/crid/1360848657418893440","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"High-precision potassium measurements using laser-induced breakdown spectroscopy under high vacuum conditions for in situ K–Ar dating of planetary surfaces"}]},{"@id":"https://cir.nii.ac.jp/crid/1360853567711899136","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Radar Sounding of Subsurface Structure in Eastern Coprates and Capri Chasmata, Mars"}]},{"@id":"https://cir.nii.ac.jp/crid/1390282679531452416","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@language":"en","@value":"Interactive evolution of multiple water-ice reservoirs on Mars: Insights from hydrogen isotope compositions"},{"@value":"Interactive evolution of multiple water-ice reservoirs on Mars: insight from hydrogen isotope compositions"}]},{"@id":"https://cir.nii.ac.jp/crid/1390282681216869376","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@language":"en","@value":"Methane on Mars"},{"@language":"ja","@value":"火星のメタン"},{"@language":"ja-Kana","@value":"カセイ ノ メタン"}]},{"@id":"https://cir.nii.ac.jp/crid/2051996266844293248","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Evolution of the rheological structure of Mars"}]}],"dataSourceIdentifier":[{"@type":"CROSSREF","@value":"10.1029/2007je002887"},{"@type":"CROSSREF","@value":"10.1186/s40623-016-0593-z_references_DOI_RKAwyrPWxYfvfVbpHatO9VTFcN5"},{"@type":"CROSSREF","@value":"10.1088/0004-637x/758/2/140_references_DOI_RKAwyrPWxYfvfVbpHatO9VTFcN5"},{"@type":"CROSSREF","@value":"10.5575/geosoc.2012.0008_references_DOI_RKAwyrPWxYfvfVbpHatO9VTFcN5"},{"@type":"CROSSREF","@value":"10.1126/sciadv.abc4941_references_DOI_RKAwyrPWxYfvfVbpHatO9VTFcN5"},{"@type":"CROSSREF","@value":"10.1111/maps.13242_references_DOI_RKAwyrPWxYfvfVbpHatO9VTFcN5"},{"@type":"CROSSREF","@value":"10.1029/2019ea000811_references_DOI_RKAwyrPWxYfvfVbpHatO9VTFcN5"},{"@type":"CROSSREF","@value":"10.2343/geochemj.2.0407_references_DOI_RKAwyrPWxYfvfVbpHatO9VTFcN5"},{"@type":"CROSSREF","@value":"10.1016/j.sab.2015.02.002_references_DOI_RKAwyrPWxYfvfVbpHatO9VTFcN5"},{"@type":"CROSSREF","@value":"10.1002/2016je005046_references_DOI_RKAwyrPWxYfvfVbpHatO9VTFcN5"},{"@type":"CROSSREF","@value":"10.1029/2020gl088556_references_DOI_RKAwyrPWxYfvfVbpHatO9VTFcN5"}]}