Chemical composition of smectites formed in clastic sediments. Implications for the smectite-illite transformation

14 páginas, 5 figuras, 4 tablas

Detalles Bibliográficos
Autores: Drief, A., Nieto, F.
Tipo de recurso: artículo
Fecha de publicación:2000
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/31937
Acceso en línea:http://hdl.handle.net/10261/31937
Access Level:acceso abierto
Palabra clave:Smectite
AEM
Clastic sediments
Soil
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repository_id_str
spelling Chemical composition of smectites formed in clastic sediments. Implications for the smectite-illite transformationDrief, A.Nieto, F.SmectiteAEMClastic sedimentsSoil14 páginas, 5 figuras, 4 tablasAnalytical electron microscopy of representative smectites from soils and sediments revealed that K was present in significant proportions. It was the major interlayer cation in soils from pelitic rocks, continental and marine sediments, independent of their diagenetic grade. Sodium was predominant only in soils from basic rock. Fluvial sediments contained smectites with both kinds of interlayer compositions. The octahedral composition of each sample ranged widely, covering various fields of dioctahedral smectites. The most important trend was the substitution of Al by Fe and Mg; the chemistry of each smectite particle was determined by the parent mineral from which it formed. The real interlayer composition has important implications for the diagenetic smectite-illite transformation. When considering a typical K content, the smectite-illite reaction, with chlorite and quartz as subproducts, needs only 0.21 K atoms. For more K-rich compositions, a reaction is possible without an external supply of K.Proyecto de investigación PB96-1383 del Ministerio de Educación e Investigación y el Grupo de Investigación RNM-0179 de la Junta de Andalucía.Peer reviewedMineralogical Society (Great Britain)201120112000info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501http://hdl.handle.net/10261/31937reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglésinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/319372026-05-22T06:33:51Z
dc.title.none.fl_str_mv Chemical composition of smectites formed in clastic sediments. Implications for the smectite-illite transformation
title Chemical composition of smectites formed in clastic sediments. Implications for the smectite-illite transformation
spellingShingle Chemical composition of smectites formed in clastic sediments. Implications for the smectite-illite transformation
Drief, A.
Smectite
AEM
Clastic sediments
Soil
title_short Chemical composition of smectites formed in clastic sediments. Implications for the smectite-illite transformation
title_full Chemical composition of smectites formed in clastic sediments. Implications for the smectite-illite transformation
title_fullStr Chemical composition of smectites formed in clastic sediments. Implications for the smectite-illite transformation
title_full_unstemmed Chemical composition of smectites formed in clastic sediments. Implications for the smectite-illite transformation
title_sort Chemical composition of smectites formed in clastic sediments. Implications for the smectite-illite transformation
dc.creator.none.fl_str_mv Drief, A.
Nieto, F.
author Drief, A.
author_facet Drief, A.
Nieto, F.
author_role author
author2 Nieto, F.
author2_role author
dc.subject.none.fl_str_mv Smectite
AEM
Clastic sediments
Soil
topic Smectite
AEM
Clastic sediments
Soil
description 14 páginas, 5 figuras, 4 tablas
publishDate 2000
dc.date.none.fl_str_mv 2000
2011
2011
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/31937
url http://hdl.handle.net/10261/31937
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Mineralogical Society (Great Britain)
publisher.none.fl_str_mv Mineralogical Society (Great Britain)
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,81155

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