{"id":"https://openalex.org/W2005777623","doi":"https://doi.org/10.1088/0031-8949/31/4/014","title":"Rare Earth Oxides and the Contamination Problem in Meteorite Research","display_name":"Rare Earth Oxides and the Contamination Problem in Meteorite Research","publication_year":1985,"publication_date":"1985-04-01","ids":{"openalex":"https://openalex.org/W2005777623","doi":"https://doi.org/10.1088/0031-8949/31/4/014","mag":"2005777623"},"language":"en","primary_location":{"id":"doi:10.1088/0031-8949/31/4/014","doi":"https://doi.org/10.1088/0031-8949/31/4/014","is_oa":false,"landing_page_url":"https://doi.org/10.1088/0031-8949/31/4/014","pdf_url":null,"source":{"id":"https://openalex.org/S59012888","display_name":"Physica Scripta","issn_l":"0031-8949","issn":["0031-8949","1402-4896"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["anvur-scientific","cwts-core","dongbi-d","jufo-1","ki-jl-1","norway-1","poland-40","russia-white-list-1","vabb-shw"],"host_organization":"https://openalex.org/P4310320083","host_organization_name":"IOP Publishing","host_organization_lineage":["https://openalex.org/P4310320083","https://openalex.org/P4310311669"],"host_organization_lineage_names":["IOP Publishing","Institute of Physics"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Physica Scripta","raw_type":"journal-article"},"volume":null,"type":"article","is_traditional":true,"indexed_in":["crossref"],"open_access":{"is_oa":false,"oa_status":"closed","oa_url":null,"any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5088271184","display_name":"V W A Vieira","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I124055696","display_name":"University of Copenhagen","ror":"https://ror.org/035b05819","country_code":"DK","type":"education","lineage":["https://openalex.org/I124055696"]},{"id":"https://openalex.org/I243754102","display_name":"Universidade Federal do Cear\u00e1","ror":"https://ror.org/03srtnf24","country_code":"BR","type":"education","lineage":["https://openalex.org/I243754102"]}],"countries":["BR","DK"],"is_corresponding":false,"raw_author_name":"V W A Vieira","raw_affiliation_strings":["On leave from Departamento de F\u00edsica, UFC, P.O.B. 3004, 60.000 Fortaleza, Brazil","Physics Laboratory I, H. C. \u00d8rsted Institute, University of Copenhagen, Universitetsparken 5, DK-2100 Copenhagen \u00d8, Denmark"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"On leave from Departamento de F\u00edsica, UFC, P.O.B. 3004, 60.000 Fortaleza, Brazil","institution_ids":["https://openalex.org/I243754102"]},{"raw_affiliation_string":"Physics Laboratory I, H. C. \u00d8rsted Institute, University of Copenhagen, Universitetsparken 5, DK-2100 Copenhagen \u00d8, Denmark","institution_ids":["https://openalex.org/I124055696"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5109523211","display_name":"TH Costa","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I124055696","display_name":"University of Copenhagen","ror":"https://ror.org/035b05819","country_code":"DK","type":"education","lineage":["https://openalex.org/I124055696"]},{"id":"https://openalex.org/I243754102","display_name":"Universidade Federal do Cear\u00e1","ror":"https://ror.org/03srtnf24","country_code":"BR","type":"education","lineage":["https://openalex.org/I243754102"]}],"countries":["BR","DK"],"is_corresponding":false,"raw_author_name":"T V V Costa","raw_affiliation_strings":["On leave from Departamento de F\u00edsica, UFC, P.O.B. 3004, 60.000 Fortaleza, Brazil","Physics Laboratory I, H. C. \u00d8rsted Institute, University of Copenhagen, Universitetsparken 5, DK-2100 Copenhagen \u00d8, Denmark"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"On leave from Departamento de F\u00edsica, UFC, P.O.B. 3004, 60.000 Fortaleza, Brazil","institution_ids":["https://openalex.org/I243754102"]},{"raw_affiliation_string":"Physics Laboratory I, H. C. \u00d8rsted Institute, University of Copenhagen, Universitetsparken 5, DK-2100 Copenhagen \u00d8, Denmark","institution_ids":["https://openalex.org/I124055696"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5108805615","display_name":"J. M. Knudsen","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I124055696","display_name":"University of Copenhagen","ror":"https://ror.org/035b05819","country_code":"DK","type":"education","lineage":["https://openalex.org/I124055696"]}],"countries":["DK"],"is_corresponding":false,"raw_author_name":"J M Knudsen","raw_affiliation_strings":["Physics Laboratory I, H. C. \u00d8rsted Institute, University of Copenhagen, Universitetsparken 5, DK-2100 Copenhagen \u00d8, Denmark"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Physics Laboratory I, H. C. \u00d8rsted Institute, University of Copenhagen, Universitetsparken 5, DK-2100 Copenhagen \u00d8, Denmark","institution_ids":["https://openalex.org/I124055696"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5002715863","display_name":"G. B. Jensen","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I96673099","display_name":"Technical University of Denmark","ror":"https://ror.org/04qtj9h94","country_code":"DK","type":"education","lineage":["https://openalex.org/I96673099"]}],"countries":["DK"],"is_corresponding":false,"raw_author_name":"G B Jensen","raw_affiliation_strings":["Department of Electrophysics, Technical University of Denmark, DK-2800 Lyngby, Denmark"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Electrophysics, Technical University of Denmark, DK-2800 Lyngby, Denmark","institution_ids":["https://openalex.org/I96673099"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5111679535","display_name":"K. Kemp","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I4210132186","display_name":"Environmental Protection Agency","ror":"https://ror.org/03fkcxa91","country_code":"DK","type":"government","lineage":["https://openalex.org/I4210132186"]}],"countries":["DK"],"is_corresponding":false,"raw_author_name":"K Kemp","raw_affiliation_strings":["Danish Air Pollution Laboratory, National Agency of Environmental Protection, Ris\u00f8 National Laboratory, DK-4000 Roskilde, Denmark"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Danish Air Pollution Laboratory, National Agency of Environmental Protection, Ris\u00f8 National Laboratory, DK-4000 Roskilde, Denmark","institution_ids":["https://openalex.org/I4210132186"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5048126425","display_name":"N H Bastholm","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I4210132186","display_name":"Environmental Protection Agency","ror":"https://ror.org/03fkcxa91","country_code":"DK","type":"government","lineage":["https://openalex.org/I4210132186"]}],"countries":["DK"],"is_corresponding":false,"raw_author_name":"N H Bastholm","raw_affiliation_strings":["Danish Air Pollution Laboratory, National Agency of Environmental Protection, Ris\u00f8 National Laboratory, DK-4000 Roskilde, Denmark"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Danish Air Pollution Laboratory, National Agency of Environmental Protection, Ris\u00f8 National Laboratory, DK-4000 Roskilde, Denmark","institution_ids":["https://openalex.org/I4210132186"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":4,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":{"value":2400,"currency":"USD","value_usd":2400},"apc_paid":null,"fwci":0.4815,"has_fulltext":false,"cited_by_count":3,"citation_normalized_percentile":{"value":0.6641261,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":88,"max":93},"biblio":{"volume":"31","issue":"4","first_page":"303","last_page":"304"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10325","display_name":"Astro and Planetary Science","score":0.9932000041007996,"subfield":{"id":"https://openalex.org/subfields/1912","display_name":"Space and Planetary Science"},"field":{"id":"https://openalex.org/fields/19","display_name":"Earth and Planetary Sciences"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T10325","display_name":"Astro and Planetary Science","score":0.9932000041007996,"subfield":{"id":"https://openalex.org/subfields/1912","display_name":"Space and Planetary Science"},"field":{"id":"https://openalex.org/fields/19","display_name":"Earth and Planetary Sciences"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10001","display_name":"Geological and Geochemical Analysis","score":0.0010000000474974513,"subfield":{"id":"https://openalex.org/subfields/1906","display_name":"Geochemistry and Petrology"},"field":{"id":"https://openalex.org/fields/19","display_name":"Earth and Planetary Sciences"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10406","display_name":"Planetary Science and Exploration","score":0.0007999999797903001,"subfield":{"id":"https://openalex.org/subfields/1912","display_name":"Space and Planetary Science"},"field":{"id":"https://openalex.org/fields/19","display_name":"Earth and Planetary Sciences"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/rare-earth-oxides","display_name":"rare earth oxides","score":0.9810000061988831},{"id":"https://openalex.org/keywords/meteorite-contamination","display_name":"meteorite contamination","score":0.9660000205039978},{"id":"https://openalex.org/keywords/cigarette-lighters","display_name":"cigarette lighters","score":0.8410000205039978},{"id":"https://openalex.org/keywords/zagami-meteorite","display_name":"Zagami meteorite","score":0.7689999938011169},{"id":"https://openalex.org/keywords/murchison-meteorite","display_name":"Murchison meteorite","score":1.0},{"id":"https://openalex.org/keywords/terrestrial-contamination","display_name":"terrestrial contamination","score":0.49900001287460327},{"id":"https://openalex.org/keywords/iron-spheres","display_name":"iron spheres","score":0.5849999785423279}],"concepts":[{"id":"https://openalex.org/C161067153","wikidata":"https://www.wikidata.org/wiki/Q1164183","display_name":"Murchison meteorite","level":4,"score":0.8249020576477051},{"id":"https://openalex.org/C130635790","wikidata":"https://www.wikidata.org/wiki/Q60186","display_name":"Meteorite","level":2,"score":0.812803328037262},{"id":"https://openalex.org/C72422203","wikidata":"https://www.wikidata.org/wiki/Q7392545","display_name":"SPHERES","level":2,"score":0.7657064199447632},{"id":"https://openalex.org/C87355193","wikidata":"https://www.wikidata.org/wiki/Q411","display_name":"Astrobiology","level":1,"score":0.7603616118431091},{"id":"https://openalex.org/C26148502","wikidata":"https://www.wikidata.org/wiki/Q2488752","display_name":"Earth (classical element)","level":2,"score":0.5732435584068298},{"id":"https://openalex.org/C112570922","wikidata":"https://www.wikidata.org/wiki/Q60528603","display_name":"Contamination","level":2,"score":0.4210614562034607},{"id":"https://openalex.org/C2983155866","wikidata":"https://www.wikidata.org/wiki/Q7294540","display_name":"Rare earth","level":2,"score":0.4142216145992279},{"id":"https://openalex.org/C116862484","wikidata":"https://www.wikidata.org/wiki/Q48361","display_name":"Chondrite","level":3,"score":0.3806498944759369},{"id":"https://openalex.org/C192562407","wikidata":"https://www.wikidata.org/wiki/Q228736","display_name":"Materials science","level":0,"score":0.3697739243507385},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.3052678108215332},{"id":"https://openalex.org/C191897082","wikidata":"https://www.wikidata.org/wiki/Q11467","display_name":"Metallurgy","level":1,"score":0.16325461864471436},{"id":"https://openalex.org/C1276947","wikidata":"https://www.wikidata.org/wiki/Q333","display_name":"Astronomy","level":1,"score":0.14455345273017883},{"id":"https://openalex.org/C86803240","wikidata":"https://www.wikidata.org/wiki/Q420","display_name":"Biology","level":0,"score":0.05990678071975708},{"id":"https://openalex.org/C18903297","wikidata":"https://www.wikidata.org/wiki/Q7150","display_name":"Ecology","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1088/0031-8949/31/4/014","doi":"https://doi.org/10.1088/0031-8949/31/4/014","is_oa":false,"landing_page_url":"https://doi.org/10.1088/0031-8949/31/4/014","pdf_url":null,"source":{"id":"https://openalex.org/S59012888","display_name":"Physica Scripta","issn_l":"0031-8949","issn":["0031-8949","1402-4896"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["anvur-scientific","cwts-core","dongbi-d","jufo-1","ki-jl-1","norway-1","poland-40","russia-white-list-1","vabb-shw"],"host_organization":"https://openalex.org/P4310320083","host_organization_name":"IOP Publishing","host_organization_lineage":["https://openalex.org/P4310320083","https://openalex.org/P4310311669"],"host_organization_lineage_names":["IOP Publishing","Institute of Physics"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Physica Scripta","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[],"study_designs":[],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":2,"referenced_works":["https://openalex.org/W2029359012","https://openalex.org/W2075833104"],"related_works":["https://openalex.org/W2029359012","https://openalex.org/W2075833104","https://openalex.org/W3032006884","https://openalex.org/W1969334594","https://openalex.org/W3202311857","https://openalex.org/W3114354775","https://openalex.org/W2731307440","https://openalex.org/W3013991981","https://openalex.org/W3095773985","https://openalex.org/W2596065535"],"abstract_inverted_index":{"We":[0,34],"have":[1,71],"reported":[2],"the":[3,14,48,60],"finding":[4],"of":[5,31,50],"nearly":[6],"perfect":[7],"spheres":[8,42,75],"(diameter":[9],"\u2243":[10],"50":[11],"\u03bcm)":[12],"in":[13,45,67],"meteorites":[15],"Zagami":[16],"and":[17,27,53],"Murchison.":[18],"The":[19],"spheres,":[20],"which":[21],"contain":[22],"mainly":[23],"rare":[24],"earth":[25],"oxides":[26],"iron,":[28],"are":[29],"not":[30],"meteoritic":[32,61],"origin.":[33],"have-unfortunately":[35],"a":[36],"little":[37],"too":[38],"late-established":[39],"that":[40,59],"similar":[41],"can":[43],"originate":[44],"profusion":[46],"from":[47,76],"use":[49],"common":[51],"cigarette":[52,77],"gas":[54],"lighters.":[55,78],"Our":[56],"conclusion":[57],"is":[58],"samples":[62],"investigated,":[63],"at":[64],"some":[65],"point":[66],"their":[68],"terrestrial":[69],"history,":[70],"been":[72],"contaminated":[73],"by":[74]},"counts_by_year":[{"year":2024,"cited_by_count":1}],"updated_date":"2026-10-02T10:15:12.560889","created_date":"2016-06-24T00:00:00"}