{"id":"https://openalex.org/W2003232582","doi":"https://doi.org/10.2343/geochemj.14.235","title":"Isotopic ages of siliceous shale from Hida-Kanayama, central Japan.","display_name":"Isotopic ages of siliceous shale from Hida-Kanayama, central Japan.","publication_year":1980,"publication_date":"1980-01-01","ids":{"openalex":"https://openalex.org/W2003232582","doi":"https://doi.org/10.2343/geochemj.14.235","mag":"2003232582"},"language":"en","primary_location":{"id":"doi:10.2343/geochemj.14.235","doi":"https://doi.org/10.2343/geochemj.14.235","is_oa":true,"landing_page_url":"https://doi.org/10.2343/geochemj.14.235","pdf_url":"https://www.jstage.jst.go.jp/article/geochemj1966/14/5/14_5_235/_pdf","source":{"id":"https://openalex.org/S146360593","display_name":"GEOCHEMICAL JOURNAL","issn_l":"0016-7002","issn":["0016-7002","1880-5973"],"is_oa":true,"is_in_doaj":false,"is_core":true,"listed_in":["cwts-core","dongbi-c","jufo-1","norway-1","poland-70","russia-white-list-2"],"host_organization":"https://openalex.org/P4328138964","host_organization_name":"The Geochemical Society of Japan","host_organization_lineage":["https://openalex.org/P4328138964"],"host_organization_lineage_names":["The Geochemical Society of Japan"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"GEOCHEMICAL JOURNAL","raw_type":"journal-article"},"volume":null,"type":"article","is_traditional":true,"indexed_in":["crossref"],"open_access":{"is_oa":true,"oa_status":"diamond","oa_url":"https://www.jstage.jst.go.jp/article/geochemj1966/14/5/14_5_235/_pdf","any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5089944638","display_name":"Ken Shibata","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I4210135230","display_name":"Geological Survey of Japan","ror":"https://ror.org/02wzg6d13","country_code":"JP","type":"other","lineage":["https://openalex.org/I4210135230","https://openalex.org/I73613424"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Ken Shibata","raw_affiliation_strings":["Geological Survey of Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Geological Survey of Japan","institution_ids":["https://openalex.org/I4210135230"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5113637953","display_name":"Shinjiro Mizutani","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I60134161","display_name":"Nagoya University","ror":"https://ror.org/04chrp450","country_code":"JP","type":"education","lineage":["https://openalex.org/I60134161"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Shinjiro Mizutani","raw_affiliation_strings":["Department of Earth Sciences, Nagoya University"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Earth Sciences, Nagoya University","institution_ids":["https://openalex.org/I60134161"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":2.4108,"has_fulltext":true,"cited_by_count":29,"citation_normalized_percentile":{"value":0.86557849,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":88,"max":95},"biblio":{"volume":"14","issue":"5","first_page":"235","last_page":"241"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10001","display_name":"Geological and Geochemical Analysis","score":0.9541000127792358,"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"}},"topics":[{"id":"https://openalex.org/T10001","display_name":"Geological and Geochemical Analysis","score":0.9541000127792358,"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/T10109","display_name":"Paleontology and Stratigraphy of Fossils","score":0.03370000049471855,"subfield":{"id":"https://openalex.org/subfields/1911","display_name":"Paleontology"},"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/T11740","display_name":"Geochemistry and Elemental Analysis","score":0.008899999782443047,"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"}}],"keywords":[{"id":"https://openalex.org/keywords/siliceous-shale","display_name":"siliceous shale","score":0.9980000257492065},{"id":"https://openalex.org/keywords/rb-sr-isochron","display_name":"Rb-Sr isochron","score":0.8479999899864197},{"id":"https://openalex.org/keywords/k-ar-ages","display_name":"K-Ar ages","score":0.8650000095367432},{"id":"https://openalex.org/keywords/tithonian","display_name":"Tithonian","score":0.7720000147819519},{"id":"https://openalex.org/keywords/radiolarian-biostratigraphy","display_name":"radiolarian biostratigraphy","score":0.7979999780654907},{"id":"https://openalex.org/keywords/strontium-isotopes","display_name":"strontium isotopes","score":0.6610000133514404},{"id":"https://openalex.org/keywords/87sr-86sr","display_name":"87Sr/86Sr","score":0.8460000157356262},{"id":"https://openalex.org/keywords/chemical-diagenesis","display_name":"chemical diagenesis","score":0.843999981880188},{"id":"https://openalex.org/keywords/detrital-contamination","display_name":"detrital contamination","score":0.7519999742507935},{"id":"https://openalex.org/keywords/sediment-provenance","display_name":"sediment provenance","score":0.7450000047683716},{"id":"https://openalex.org/keywords/mesozoic","display_name":"Mesozoic","score":0.6100000143051147}],"concepts":[{"id":"https://openalex.org/C487381","wikidata":"https://www.wikidata.org/wiki/Q17098413","display_name":"Isochron","level":2,"score":0.9282722473144531},{"id":"https://openalex.org/C127313418","wikidata":"https://www.wikidata.org/wiki/Q1069","display_name":"Geology","level":0,"score":0.7809768915176392},{"id":"https://openalex.org/C153127940","wikidata":"https://www.wikidata.org/wiki/Q221378","display_name":"Oil shale","level":2,"score":0.7692649364471436},{"id":"https://openalex.org/C130452526","wikidata":"https://www.wikidata.org/wiki/Q180621","display_name":"Diagenesis","level":2,"score":0.7372205853462219},{"id":"https://openalex.org/C2780049196","wikidata":"https://www.wikidata.org/wiki/Q23582628","display_name":"Provenance","level":2,"score":0.6389116048812866},{"id":"https://openalex.org/C17409809","wikidata":"https://www.wikidata.org/wiki/Q161764","display_name":"Geochemistry","level":1,"score":0.5629178881645203},{"id":"https://openalex.org/C2781291010","wikidata":"https://www.wikidata.org/wiki/Q178580","display_name":"Period (music)","level":2,"score":0.43374955654144287},{"id":"https://openalex.org/C151730666","wikidata":"https://www.wikidata.org/wiki/Q7205","display_name":"Paleontology","level":1,"score":0.4316384792327881},{"id":"https://openalex.org/C199289684","wikidata":"https://www.wikidata.org/wiki/Q83353","display_name":"Mineralogy","level":1,"score":0.37200823426246643},{"id":"https://openalex.org/C24890656","wikidata":"https://www.wikidata.org/wiki/Q82811","display_name":"Acoustics","level":1,"score":0.0},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.2343/geochemj.14.235","doi":"https://doi.org/10.2343/geochemj.14.235","is_oa":true,"landing_page_url":"https://doi.org/10.2343/geochemj.14.235","pdf_url":"https://www.jstage.jst.go.jp/article/geochemj1966/14/5/14_5_235/_pdf","source":{"id":"https://openalex.org/S146360593","display_name":"GEOCHEMICAL JOURNAL","issn_l":"0016-7002","issn":["0016-7002","1880-5973"],"is_oa":true,"is_in_doaj":false,"is_core":true,"listed_in":["cwts-core","dongbi-c","jufo-1","norway-1","poland-70","russia-white-list-2"],"host_organization":"https://openalex.org/P4328138964","host_organization_name":"The Geochemical Society of Japan","host_organization_lineage":["https://openalex.org/P4328138964"],"host_organization_lineage_names":["The Geochemical Society of Japan"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"GEOCHEMICAL JOURNAL","raw_type":"journal-article"}],"best_oa_location":{"id":"doi:10.2343/geochemj.14.235","doi":"https://doi.org/10.2343/geochemj.14.235","is_oa":true,"landing_page_url":"https://doi.org/10.2343/geochemj.14.235","pdf_url":"https://www.jstage.jst.go.jp/article/geochemj1966/14/5/14_5_235/_pdf","source":{"id":"https://openalex.org/S146360593","display_name":"GEOCHEMICAL JOURNAL","issn_l":"0016-7002","issn":["0016-7002","1880-5973"],"is_oa":true,"is_in_doaj":false,"is_core":true,"listed_in":["cwts-core","dongbi-c","jufo-1","norway-1","poland-70","russia-white-list-2"],"host_organization":"https://openalex.org/P4328138964","host_organization_name":"The Geochemical Society of Japan","host_organization_lineage":["https://openalex.org/P4328138964"],"host_organization_lineage_names":["The Geochemical Society of Japan"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"GEOCHEMICAL JOURNAL","raw_type":"journal-article"},"sustainable_development_goals":[],"study_designs":[],"awards":[],"funders":[],"has_content":{"pdf":true,"grobid_xml":true},"content_urls":{"pdf":"https://content.openalex.org/works/W2003232582.pdf","grobid_xml":"https://content.openalex.org/works/W2003232582.grobid-xml"},"referenced_works_count":12,"referenced_works":["https://openalex.org/W19352064","https://openalex.org/W55771951","https://openalex.org/W63759927","https://openalex.org/W1495865194","https://openalex.org/W1991728395","https://openalex.org/W2076651014","https://openalex.org/W2078887131","https://openalex.org/W2079156394","https://openalex.org/W2079403553","https://openalex.org/W2091950619","https://openalex.org/W2318482288","https://openalex.org/W2327364957"],"related_works":["https://openalex.org/W2055706281","https://openalex.org/W139322170","https://openalex.org/W2063186230","https://openalex.org/W1991728395","https://openalex.org/W2087472392","https://openalex.org/W2028373775","https://openalex.org/W586772296","https://openalex.org/W2095562420","https://openalex.org/W1978350816","https://openalex.org/W2130248699"],"abstract_inverted_index":{"Whole-rock":[0],"samples":[1,25],"of":[2,19,44,50,61,67,91,128],"siliceous":[3],"shale,":[4],"assigned":[5],"to":[6,29,82,109],"lower":[7],"Tithonian":[8],"by":[9,41],"radiolarian":[10],"fossils,":[11],"from":[12,27],"Hida-Kanayama":[13],"give":[14],"a":[15,89],"Rb-Sr":[16,54,83],"isochron":[17],"age":[18,66],"128\u00b13Ma.":[20],"K-Ar":[21,56],"ages":[22,57],"for":[23,104],"these":[24],"range":[26],"125":[28],"133":[30],"Ma":[31],"except":[32],"two":[33],"much":[34,115],"older":[35,129],"ages,":[36],"which":[37],"are":[38],"perhaps":[39],"caused":[40],"the":[42,48,51,59,65,73,76,95,105,118,126,132],"presence":[43],"detrital":[45],"material.":[46],"On":[47],"basis":[49],"concordance":[52],"between":[53,94],"and":[55,58,97,114],"lack":[60],"significant":[62],"thermal":[63],"event,":[64],"128Ma":[68],"is":[69,107],"interpreted":[70],"as":[71],"indicating":[72],"time":[74],"when":[75],"whole-rock":[77],"became":[78],"closed":[79],"with":[80],"respect":[81],"system,":[84],"thus":[85],"there":[86],"should":[87],"be":[88,110],"period":[90],"about":[92],"20Ma":[93],"deposition":[96],"chemical":[98],"diagenesis.":[99],"The":[100],"initial":[101],"87Sr/86Sr":[102,121],"ratio":[103],"shale":[106],"determined":[108],"0.7155":[111],"\u00b1":[112],"0.0004":[113],"higher":[116],"than":[117],"contemporaneous":[119],"marine":[120],"ratio.":[122],"This":[123],"fact":[124],"suggests":[125],"existence":[127],"rocks":[130],"in":[131],"provenance.":[133]},"counts_by_year":[{"year":2019,"cited_by_count":2},{"year":2016,"cited_by_count":1},{"year":2013,"cited_by_count":1}],"updated_date":"2026-10-30T12:39:25.321706","created_date":"2016-06-24T00:00:00"}
