{"id":"https://openalex.org/W2010738768","doi":"https://doi.org/10.1038/338060a0","title":"Graphitized diamonds from a peridotite massif in Morocco and implications for anomalous diamond occurrences","display_name":"Graphitized diamonds from a peridotite massif in Morocco and implications for anomalous diamond occurrences","publication_year":1989,"publication_date":"1989-03-01","ids":{"openalex":"https://openalex.org/W2010738768","doi":"https://doi.org/10.1038/338060a0","mag":"2010738768"},"language":"en","primary_location":{"id":"doi:10.1038/338060a0","doi":"https://doi.org/10.1038/338060a0","is_oa":false,"landing_page_url":"https://doi.org/10.1038/338060a0","pdf_url":null,"source":{"id":"https://openalex.org/S137773608","display_name":"Nature","issn_l":"0028-0836","issn":["0028-0836","1476-4687"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["anvur-class-a","anvur-scientific","cwts-core","dongbi-a","doyens","erih-plus","jufo-3","ki-jl-3","medline","norway-2","poland-200","russia-white-list-1","vabb-shw"],"host_organization":"https://openalex.org/P4310319908","host_organization_name":"Nature Portfolio","host_organization_lineage":["https://openalex.org/P4310319908","https://openalex.org/P4310319965"],"host_organization_lineage_names":["Nature Portfolio","Springer Nature"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Nature","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/A5010390023","display_name":"David Graham Pearson","orcid":"https://orcid.org/0000-0001-5974-4192","observed_orcids":["https://orcid.org/0000-0001-5974-4192"]},"institutions":[{"id":"https://openalex.org/I130828816","display_name":"University of Leeds","ror":"https://ror.org/024mrxd33","country_code":"GB","type":"education","lineage":["https://openalex.org/I130828816"]}],"countries":["GB"],"is_corresponding":false,"raw_author_name":"D. G. Pearson","raw_affiliation_strings":["Department of Earth Sciences, University of Leeds, Leeds, LS2 9JT, UK","Department of Earth Sciences, University of Leeds, Leeds, UK"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Earth Sciences, University of Leeds, Leeds, LS2 9JT, UK","institution_ids":["https://openalex.org/I130828816"]},{"raw_affiliation_string":"Department of Earth Sciences, University of Leeds, Leeds, UK","institution_ids":["https://openalex.org/I130828816"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5042609345","display_name":"G.R. Davies","orcid":"https://orcid.org/0000-0002-6136-9202","observed_orcids":["https://orcid.org/0000-0002-6136-9202"]},"institutions":[{"id":"https://openalex.org/I130828816","display_name":"University of Leeds","ror":"https://ror.org/024mrxd33","country_code":"GB","type":"education","lineage":["https://openalex.org/I130828816"]}],"countries":["GB"],"is_corresponding":false,"raw_author_name":"G. R. Davies","raw_affiliation_strings":["Department of Earth Sciences, University of Leeds, Leeds, LS2 9JT, UK","Department of Earth Sciences, University of Leeds, Leeds, UK"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Earth Sciences, University of Leeds, Leeds, LS2 9JT, UK","institution_ids":["https://openalex.org/I130828816"]},{"raw_affiliation_string":"Department of Earth Sciences, University of Leeds, Leeds, UK","institution_ids":["https://openalex.org/I130828816"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5082303880","display_name":"Peter H. Nixon","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I130828816","display_name":"University of Leeds","ror":"https://ror.org/024mrxd33","country_code":"GB","type":"education","lineage":["https://openalex.org/I130828816"]}],"countries":["GB"],"is_corresponding":false,"raw_author_name":"P. H. Nixon","raw_affiliation_strings":["Department of Earth Sciences, University of Leeds, Leeds, LS2 9JT, UK","Department of Earth Sciences, University of Leeds, Leeds, UK"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Earth Sciences, University of Leeds, Leeds, LS2 9JT, UK","institution_ids":["https://openalex.org/I130828816"]},{"raw_affiliation_string":"Department of Earth Sciences, University of Leeds, Leeds, UK","institution_ids":["https://openalex.org/I130828816"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5109117445","display_name":"H. JUDITH MILLEDGE","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I45129253","display_name":"University College London","ror":"https://ror.org/02jx3x895","country_code":"GB","type":"education","lineage":["https://openalex.org/I124357947","https://openalex.org/I45129253"]}],"countries":["GB"],"is_corresponding":false,"raw_author_name":"H. J. Milledge","raw_affiliation_strings":["Department of Geological Sciences, University College London, Gower Street, London, WC1E 6BT, UK","Department of Geological Sciences University College London London UK"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Geological Sciences, University College London, Gower Street, London, WC1E 6BT, UK","institution_ids":["https://openalex.org/I45129253"]},{"raw_affiliation_string":"Department of Geological Sciences University College London London UK","institution_ids":["https://openalex.org/I45129253"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":{"value":12690,"currency":"USD","value_usd":12690},"apc_paid":null,"fwci":2.8928,"has_fulltext":false,"cited_by_count":141,"citation_normalized_percentile":{"value":0.89014836,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":93,"max":99},"biblio":{"volume":"338","issue":"6210","first_page":"60","last_page":"62"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10001","display_name":"Geological and Geochemical Analysis","score":0.7782999873161316,"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":0.7782999873161316,"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/T13443","display_name":"Mineralogy and Gemology Studies","score":0.10490000247955322,"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/T10478","display_name":"Diamond and Carbon-based Materials Research","score":0.03889999911189079,"subfield":{"id":"https://openalex.org/subfields/2505","display_name":"Materials Chemistry"},"field":{"id":"https://openalex.org/fields/25","display_name":"Materials Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/peridotite-massifs","display_name":"peridotite massifs","score":0.7409999966621399},{"id":"https://openalex.org/keywords/garnet-pyroxenite","display_name":"garnet pyroxenite","score":0.8880000114440918},{"id":"https://openalex.org/keywords/diamond-sources","display_name":"diamond sources","score":0.6420000195503235}],"concepts":[{"id":"https://openalex.org/C84372278","wikidata":"https://www.wikidata.org/wiki/Q239918","display_name":"Peridotite","level":3,"score":0.9256976842880249},{"id":"https://openalex.org/C160776313","wikidata":"https://www.wikidata.org/wiki/Q1061151","display_name":"Massif","level":2,"score":0.9008393287658691},{"id":"https://openalex.org/C183282558","wikidata":"https://www.wikidata.org/wiki/Q204376","display_name":"Kimberlite","level":3,"score":0.8221912384033203},{"id":"https://openalex.org/C127313418","wikidata":"https://www.wikidata.org/wiki/Q1069","display_name":"Geology","level":0,"score":0.7974346876144409},{"id":"https://openalex.org/C17409809","wikidata":"https://www.wikidata.org/wiki/Q161764","display_name":"Geochemistry","level":1,"score":0.78809654712677},{"id":"https://openalex.org/C2776921476","wikidata":"https://www.wikidata.org/wiki/Q5283","display_name":"Diamond","level":2,"score":0.6918282508850098},{"id":"https://openalex.org/C67236022","wikidata":"https://www.wikidata.org/wiki/Q4364434","display_name":"Mantle (geology)","level":2,"score":0.6661350131034851},{"id":"https://openalex.org/C6363049","wikidata":"https://www.wikidata.org/wiki/Q505748","display_name":"Volcanism","level":3,"score":0.5077546834945679},{"id":"https://openalex.org/C141646446","wikidata":"https://www.wikidata.org/wiki/Q858571","display_name":"Continental crust","level":3,"score":0.47728195786476135},{"id":"https://openalex.org/C10912530","wikidata":"https://www.wikidata.org/wiki/Q1456639","display_name":"Pseudomorph","level":3,"score":0.4491104185581207},{"id":"https://openalex.org/C1965285","wikidata":"https://www.wikidata.org/wiki/Q8008","display_name":"Earth science","level":1,"score":0.44592443108558655},{"id":"https://openalex.org/C151730666","wikidata":"https://www.wikidata.org/wiki/Q7205","display_name":"Paleontology","level":1,"score":0.24505308270454407},{"id":"https://openalex.org/C77928131","wikidata":"https://www.wikidata.org/wiki/Q193343","display_name":"Tectonics","level":2,"score":0.13137564063072205},{"id":"https://openalex.org/C192562407","wikidata":"https://www.wikidata.org/wiki/Q228736","display_name":"Materials science","level":0,"score":0.09079456329345703},{"id":"https://openalex.org/C2779870107","wikidata":"https://www.wikidata.org/wiki/Q43010","display_name":"Quartz","level":2,"score":0.0},{"id":"https://openalex.org/C159985019","wikidata":"https://www.wikidata.org/wiki/Q181790","display_name":"Composite material","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1038/338060a0","doi":"https://doi.org/10.1038/338060a0","is_oa":false,"landing_page_url":"https://doi.org/10.1038/338060a0","pdf_url":null,"source":{"id":"https://openalex.org/S137773608","display_name":"Nature","issn_l":"0028-0836","issn":["0028-0836","1476-4687"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["anvur-class-a","anvur-scientific","cwts-core","dongbi-a","doyens","erih-plus","jufo-3","ki-jl-3","medline","norway-2","poland-200","russia-white-list-1","vabb-shw"],"host_organization":"https://openalex.org/P4310319908","host_organization_name":"Nature Portfolio","host_organization_lineage":["https://openalex.org/P4310319908","https://openalex.org/P4310319965"],"host_organization_lineage_names":["Nature Portfolio","Springer Nature"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Nature","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":14,"referenced_works":["https://openalex.org/W1595115393","https://openalex.org/W1986887573","https://openalex.org/W1989963989","https://openalex.org/W2016620974","https://openalex.org/W2036185984","https://openalex.org/W2040945066","https://openalex.org/W2085704985","https://openalex.org/W2313355155","https://openalex.org/W2315231622","https://openalex.org/W2333266947","https://openalex.org/W3022356004","https://openalex.org/W3125641413","https://openalex.org/W3126061371","https://openalex.org/W4246303099"],"related_works":["https://openalex.org/W4254082893","https://openalex.org/W7095180372","https://openalex.org/W2318490825","https://openalex.org/W29135472","https://openalex.org/W2066148941","https://openalex.org/W2125510263","https://openalex.org/W3014321424","https://openalex.org/W7097255164","https://openalex.org/W2017823479","https://openalex.org/W1990751086"],"abstract_inverted_index":null,"counts_by_year":[{"year":2026,"cited_by_count":4},{"year":2025,"cited_by_count":3},{"year":2024,"cited_by_count":5},{"year":2023,"cited_by_count":5},{"year":2022,"cited_by_count":2},{"year":2021,"cited_by_count":5},{"year":2020,"cited_by_count":2},{"year":2019,"cited_by_count":10},{"year":2018,"cited_by_count":5},{"year":2017,"cited_by_count":5},{"year":2016,"cited_by_count":7},{"year":2015,"cited_by_count":7},{"year":2014,"cited_by_count":7},{"year":2013,"cited_by_count":6},{"year":2012,"cited_by_count":6}],"updated_date":"2026-11-04T10:54:05.112534","created_date":"2016-06-24T00:00:00"}
