{"id":"https://openalex.org/W1986295490","doi":"https://doi.org/10.1180/claymin.1994.029.4.10","title":"Ammonium fixation during illite-smectite diagenesis in Upper Jurassic shale, North Sea","display_name":"Ammonium fixation during illite-smectite diagenesis in Upper Jurassic shale, North Sea","publication_year":1994,"publication_date":"1994-10-01","ids":{"openalex":"https://openalex.org/W1986295490","doi":"https://doi.org/10.1180/claymin.1994.029.4.10","mag":"1986295490"},"language":"en","primary_location":{"id":"doi:10.1180/claymin.1994.029.4.10","doi":"https://doi.org/10.1180/claymin.1994.029.4.10","is_oa":false,"landing_page_url":"https://doi.org/10.1180/claymin.1994.029.4.10","pdf_url":null,"source":{"id":"https://openalex.org/S134770349","display_name":"Clay Minerals","issn_l":"0009-8558","issn":["0009-8558","1471-8030"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["anvur-scientific","cwts-core","dongbi-c","jufo-1","norway-1","poland-70","russia-white-list-1"],"host_organization":"https://openalex.org/P4310311721","host_organization_name":"Cambridge University Press","host_organization_lineage":["https://openalex.org/P4310311721","https://openalex.org/P4310311702"],"host_organization_lineage_names":["Cambridge University Press","University of Cambridge"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Clay Minerals","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/A5029283919","display_name":"Holger Bj\u00f8rn Lindgreen","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I2801979204","display_name":"Geological Survey of Denmark and Greenland","ror":"https://ror.org/01b40r146","country_code":"DK","type":"facility","lineage":["https://openalex.org/I2801979204","https://openalex.org/I4210102581"]}],"countries":["DK"],"is_corresponding":true,"raw_author_name":"H. Lindgreen","raw_affiliation_strings":["Geological Survey of Denmark, Clay Mineralogical Laboratory, Copenhagen, Denmark"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Geological Survey of Denmark, Clay Mineralogical Laboratory, Copenhagen, Denmark","institution_ids":["https://openalex.org/I2801979204"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":["https://openalex.org/A5029283919"],"corresponding_institution_ids":["https://openalex.org/I2801979204"],"apc_list":{"value":3550,"currency":"USD","value_usd":3550},"apc_paid":null,"fwci":0.7186,"has_fulltext":false,"cited_by_count":52,"citation_normalized_percentile":{"value":0.74017367,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":87,"max":98},"biblio":{"volume":"29","issue":"4","first_page":"527","last_page":"537"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10399","display_name":"Hydrocarbon exploration and reservoir analysis","score":0.7773000001907349,"subfield":{"id":"https://openalex.org/subfields/1907","display_name":"Geology"},"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/T10399","display_name":"Hydrocarbon exploration and reservoir analysis","score":0.7773000001907349,"subfield":{"id":"https://openalex.org/subfields/1907","display_name":"Geology"},"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/T11852","display_name":"Clay minerals and soil interactions","score":0.16040000319480896,"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/T11740","display_name":"Geochemistry and Elemental Analysis","score":0.05119999870657921,"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/ammonium-fixation","display_name":"ammonium fixation","score":0.9919999837875366},{"id":"https://openalex.org/keywords/interlayer-cations","display_name":"interlayer cations","score":0.7310000061988831},{"id":"https://openalex.org/keywords/clay-mineral-dehydration","display_name":"clay dehydration","score":0.5249999761581421},{"id":"https://openalex.org/keywords/soluble-potassium","display_name":"soluble potassium","score":0.875},{"id":"https://openalex.org/keywords/burial-diagenesis","display_name":"burial diagenesis","score":0.734000027179718},{"id":"https://openalex.org/keywords/petroleum-source-rocks","display_name":"petroleum source rocks","score":0.8389999866485596},{"id":"https://openalex.org/keywords/isotope-dilution","display_name":"isotope dilution","score":0.800000011920929}],"concepts":[{"id":"https://openalex.org/C2779429093","wikidata":"https://www.wikidata.org/wiki/Q1145804","display_name":"Illite","level":3,"score":0.9667308330535889},{"id":"https://openalex.org/C130452526","wikidata":"https://www.wikidata.org/wiki/Q180621","display_name":"Diagenesis","level":2,"score":0.9050076007843018},{"id":"https://openalex.org/C153127940","wikidata":"https://www.wikidata.org/wiki/Q221378","display_name":"Oil shale","level":2,"score":0.7494557499885559},{"id":"https://openalex.org/C127313418","wikidata":"https://www.wikidata.org/wiki/Q1069","display_name":"Geology","level":0,"score":0.7136986255645752},{"id":"https://openalex.org/C40212044","wikidata":"https://www.wikidata.org/wiki/Q1799034","display_name":"Clay minerals","level":2,"score":0.6841607689857483},{"id":"https://openalex.org/C199289684","wikidata":"https://www.wikidata.org/wiki/Q83353","display_name":"Mineralogy","level":1,"score":0.4727364778518677},{"id":"https://openalex.org/C2779870022","wikidata":"https://www.wikidata.org/wiki/Q190901","display_name":"Ammonium","level":2,"score":0.4701012969017029},{"id":"https://openalex.org/C17409809","wikidata":"https://www.wikidata.org/wiki/Q161764","display_name":"Geochemistry","level":1,"score":0.45779305696487427},{"id":"https://openalex.org/C197248824","wikidata":"https://www.wikidata.org/wiki/Q184395","display_name":"Seawater","level":2,"score":0.43198898434638977},{"id":"https://openalex.org/C2778769901","wikidata":"https://www.wikidata.org/wiki/Q194290","display_name":"Dehydration","level":2,"score":0.4277641177177429},{"id":"https://openalex.org/C185592680","wikidata":"https://www.wikidata.org/wiki/Q2329","display_name":"Chemistry","level":0,"score":0.31175151467323303},{"id":"https://openalex.org/C151730666","wikidata":"https://www.wikidata.org/wiki/Q7205","display_name":"Paleontology","level":1,"score":0.14412850141525269},{"id":"https://openalex.org/C111368507","wikidata":"https://www.wikidata.org/wiki/Q43518","display_name":"Oceanography","level":1,"score":0.07467594742774963},{"id":"https://openalex.org/C178790620","wikidata":"https://www.wikidata.org/wiki/Q11351","display_name":"Organic chemistry","level":1,"score":0.0634719729423523},{"id":"https://openalex.org/C55493867","wikidata":"https://www.wikidata.org/wiki/Q7094","display_name":"Biochemistry","level":1,"score":0.0}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1180/claymin.1994.029.4.10","doi":"https://doi.org/10.1180/claymin.1994.029.4.10","is_oa":false,"landing_page_url":"https://doi.org/10.1180/claymin.1994.029.4.10","pdf_url":null,"source":{"id":"https://openalex.org/S134770349","display_name":"Clay Minerals","issn_l":"0009-8558","issn":["0009-8558","1471-8030"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["anvur-scientific","cwts-core","dongbi-c","jufo-1","norway-1","poland-70","russia-white-list-1"],"host_organization":"https://openalex.org/P4310311721","host_organization_name":"Cambridge University Press","host_organization_lineage":["https://openalex.org/P4310311721","https://openalex.org/P4310311702"],"host_organization_lineage_names":["Cambridge University Press","University of Cambridge"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Clay Minerals","raw_type":"journal-article"},{"id":"pmh:oai:CiteSeerX.psu:10.1.1.631.8896","doi":null,"is_oa":false,"landing_page_url":"http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.631.8896","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"http://www.minersoc.org/pages/Archive-CM/Volume_29/29-4-527.pdf","raw_type":"text"}],"best_oa_location":null,"sustainable_development_goals":[],"study_designs":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":30,"referenced_works":["https://openalex.org/W7769703","https://openalex.org/W1503811122","https://openalex.org/W1548676854","https://openalex.org/W1558677347","https://openalex.org/W1792017862","https://openalex.org/W1821151640","https://openalex.org/W1821174142","https://openalex.org/W1883454694","https://openalex.org/W1965353282","https://openalex.org/W1975433701","https://openalex.org/W1977534000","https://openalex.org/W1977780202","https://openalex.org/W2015118082","https://openalex.org/W2024986730","https://openalex.org/W2038655540","https://openalex.org/W2040879030","https://openalex.org/W2047035687","https://openalex.org/W2052694638","https://openalex.org/W2065206516","https://openalex.org/W2067178785","https://openalex.org/W2074828897","https://openalex.org/W2079339606","https://openalex.org/W2080835345","https://openalex.org/W2126904067","https://openalex.org/W2129581358","https://openalex.org/W2129836263","https://openalex.org/W2141081010","https://openalex.org/W2150064850","https://openalex.org/W2168283047","https://openalex.org/W3183522332"],"related_works":["https://openalex.org/W2141081010","https://openalex.org/W2038655540","https://openalex.org/W2080293019","https://openalex.org/W4394955404","https://openalex.org/W2313547547","https://openalex.org/W2107303047","https://openalex.org/W2150064850","https://openalex.org/W2134428851","https://openalex.org/W4377694643","https://openalex.org/W2168283047"],"abstract_inverted_index":{"Abstract":[0],"Claystones":[1],"of":[2,41,48,56,67,109,144,150],"Kimmeridgian-Volgian-Ryazanian":[3],"age":[4],"are":[5],"the":[6,13,28,65,75,83,100,116],"main":[7],"source":[8,152],"rock":[9],"for":[10],"oil":[11,19,151],"in":[12,24,61,71,130,140],"Central":[14,84],"Trough,":[15,85],"North":[16],"Sea.":[17],"During":[18],"generation,":[20],"illite":[21,42],"layers":[22,43],"form":[23],"illite-smectite":[25],"(I-S)":[26],"and":[27,34,46,52,59,64,69],"illitesmectites":[29],"become":[30],"short-range":[31],"(IS)":[32],"ordered":[33],"eventually":[35],"long-range":[36],"(ISII)":[37],"ordered.":[38],"The":[39,54,125],"formation":[40],"involves":[44],"dehydration":[45],"fixation":[47,139],"interlayer":[49],"cations,":[50],"K+":[51,87],"NH4+.":[53],"content":[55,66],"soluble":[57,86,92],"NH4":[58,68,76,138],"K":[60,70],"core":[62],"samples":[63],"I-S":[72,131,141],"were":[73],"determined,":[74],"by":[77],"an":[78,107],"isotope":[79],"dilution":[80],"method.":[81],"In":[82,114],"decreases":[88],"with":[89,95,104,123],"depth,":[90,105],"whereas":[91],"NH4+":[93],"increases":[94,103,128],"depth.":[96,124],"From":[97],"\u223c3":[98],"km,":[99],"ratio":[101,117,127],"NH4/K":[102,118,126],"to":[106],"average":[108],"\u223c0.5":[110],"at":[111],"4.4":[112],"km.":[113],"I-S,":[115],"shows":[119],"a":[120],"similar":[121],"increase":[122],"significantly":[129],"during":[132,147],"ordering.":[133],"It":[134],"is":[135],"concluded":[136],"that":[137],"may":[142],"be":[143],"general":[145],"importance":[146],"burial":[148],"diagenesis":[149],"rocks.":[153]},"counts_by_year":[{"year":2026,"cited_by_count":1},{"year":2025,"cited_by_count":2},{"year":2023,"cited_by_count":7},{"year":2021,"cited_by_count":1},{"year":2020,"cited_by_count":1},{"year":2019,"cited_by_count":2},{"year":2017,"cited_by_count":1},{"year":2016,"cited_by_count":1},{"year":2015,"cited_by_count":1},{"year":2013,"cited_by_count":2},{"year":2012,"cited_by_count":3}],"updated_date":"2026-11-04T10:54:05.112534","created_date":"2016-06-24T00:00:00"}