{"id":"https://openalex.org/W2089181708","doi":"https://doi.org/10.1016/0016-7037(90)90448-t","title":"Comment on \u201cthe implication of the oxygen isotope records in coexisting cherts and phosphates\u201d by J. Karhu and S. Epstein","display_name":"Comment on \u201cthe implication of the oxygen isotope records in coexisting cherts and phosphates\u201d by J. Karhu and S. Epstein","publication_year":1990,"publication_date":"1990-04-01","ids":{"openalex":"https://openalex.org/W2089181708","doi":"https://doi.org/10.1016/0016-7037(90)90448-t","mag":"2089181708"},"language":"en","primary_location":{"id":"doi:10.1016/0016-7037(90)90448-t","doi":"https://doi.org/10.1016/0016-7037(90)90448-t","is_oa":false,"landing_page_url":"https://doi.org/10.1016/0016-7037(90)90448-t","pdf_url":null,"source":{"id":"https://openalex.org/S7538555","display_name":"Geochimica et Cosmochimica Acta","issn_l":"0016-7037","issn":["0016-7037","1872-9533"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["cwts-core","dongbi-a","jufo-2","norway-2","poland-200","russia-white-list-1","vabb-shw"],"host_organization":"https://openalex.org/P4310320990","host_organization_name":"Elsevier BV","host_organization_lineage":["https://openalex.org/P4310320990"],"host_organization_lineage_names":["Elsevier BV"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Geochimica et Cosmochimica Acta","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/A5111752676","display_name":"Eugene C. Perry","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I102502594","display_name":"Northern Illinois University","ror":"https://ror.org/012wxa772","country_code":"US","type":"education","lineage":["https://openalex.org/I102502594"]}],"countries":["US"],"is_corresponding":true,"raw_author_name":"E.C Perry","raw_affiliation_strings":["Department of Geology, Northern Illinois University, DeKalb, IL 60115,USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Geology, Northern Illinois University, DeKalb, IL 60115,USA","institution_ids":["https://openalex.org/I102502594"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":["https://openalex.org/A5111752676"],"corresponding_institution_ids":["https://openalex.org/I102502594"],"apc_list":{"value":4090,"currency":"USD","value_usd":4090},"apc_paid":null,"fwci":1.3866,"has_fulltext":false,"cited_by_count":8,"citation_normalized_percentile":{"value":0.80365939,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":"54","issue":"4","first_page":"1175","last_page":"1179"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10109","display_name":"Paleontology and Stratigraphy of Fossils","score":0.9848999977111816,"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"}},"topics":[{"id":"https://openalex.org/T10109","display_name":"Paleontology and Stratigraphy of Fossils","score":0.9848999977111816,"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/T10001","display_name":"Geological and Geochemical Analysis","score":0.005400000140070915,"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/T10017","display_name":"Geology and Paleoclimatology Research","score":0.004000000189989805,"subfield":{"id":"https://openalex.org/subfields/1902","display_name":"Atmospheric 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/oxygen-isotopes","display_name":"oxygen isotopes","score":0.9879999756813049},{"id":"https://openalex.org/keywords/chert","display_name":"chert","score":0.7720000147819519},{"id":"https://openalex.org/keywords/phosphate","display_name":"phosphate","score":0.984000027179718},{"id":"https://openalex.org/keywords/coexisting-minerals","display_name":"coexisting minerals","score":0.5419999957084656},{"id":"https://openalex.org/keywords/paleoclimate","display_name":"paleoclimate","score":0.5199999809265137},{"id":"https://openalex.org/keywords/diagenesis","display_name":"diagenesis","score":0.49399998784065247}],"concepts":[{"id":"https://openalex.org/C71468253","wikidata":"https://www.wikidata.org/wiki/Q785643","display_name":"Isotopes of oxygen","level":2,"score":0.6905511617660522},{"id":"https://openalex.org/C127313418","wikidata":"https://www.wikidata.org/wiki/Q1069","display_name":"Geology","level":0,"score":0.5084701776504517},{"id":"https://openalex.org/C17409809","wikidata":"https://www.wikidata.org/wiki/Q161764","display_name":"Geochemistry","level":1,"score":0.4648078680038452},{"id":"https://openalex.org/C540031477","wikidata":"https://www.wikidata.org/wiki/Q629","display_name":"Oxygen","level":2,"score":0.4577559232711792},{"id":"https://openalex.org/C164304813","wikidata":"https://www.wikidata.org/wiki/Q25276","display_name":"Isotope","level":2,"score":0.41117990016937256},{"id":"https://openalex.org/C177322064","wikidata":"https://www.wikidata.org/wiki/Q750955","display_name":"Radiochemistry","level":1,"score":0.3765776753425598},{"id":"https://openalex.org/C87355193","wikidata":"https://www.wikidata.org/wiki/Q411","display_name":"Astrobiology","level":1,"score":0.33729156851768494},{"id":"https://openalex.org/C185592680","wikidata":"https://www.wikidata.org/wiki/Q2329","display_name":"Chemistry","level":0,"score":0.29942798614501953},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.0797448456287384},{"id":"https://openalex.org/C185544564","wikidata":"https://www.wikidata.org/wiki/Q81197","display_name":"Nuclear physics","level":1,"score":0.07149893045425415},{"id":"https://openalex.org/C178790620","wikidata":"https://www.wikidata.org/wiki/Q11351","display_name":"Organic chemistry","level":1,"score":0.04380238056182861}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1016/0016-7037(90)90448-t","doi":"https://doi.org/10.1016/0016-7037(90)90448-t","is_oa":false,"landing_page_url":"https://doi.org/10.1016/0016-7037(90)90448-t","pdf_url":null,"source":{"id":"https://openalex.org/S7538555","display_name":"Geochimica et Cosmochimica Acta","issn_l":"0016-7037","issn":["0016-7037","1872-9533"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["cwts-core","dongbi-a","jufo-2","norway-2","poland-200","russia-white-list-1","vabb-shw"],"host_organization":"https://openalex.org/P4310320990","host_organization_name":"Elsevier BV","host_organization_lineage":["https://openalex.org/P4310320990"],"host_organization_lineage_names":["Elsevier BV"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Geochimica et Cosmochimica Acta","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[],"study_designs":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":12,"referenced_works":["https://openalex.org/W81451687","https://openalex.org/W104693908","https://openalex.org/W121199308","https://openalex.org/W1831860103","https://openalex.org/W1972441357","https://openalex.org/W2015910264","https://openalex.org/W2017851468","https://openalex.org/W2047660877","https://openalex.org/W2049365895","https://openalex.org/W2059398718","https://openalex.org/W2091171602","https://openalex.org/W2154652984"],"related_works":["https://openalex.org/W81451687","https://openalex.org/W2042241671","https://openalex.org/W2612630272","https://openalex.org/W3217624113","https://openalex.org/W3156063693","https://openalex.org/W3141088218","https://openalex.org/W2073946727","https://openalex.org/W4415512034","https://openalex.org/W3210035933","https://openalex.org/W3112565660"],"abstract_inverted_index":null,"counts_by_year":[],"updated_date":"2026-10-16T09:59:22.235173","created_date":"2016-06-24T00:00:00"}