Textural and genetic relationships between glauconite and celadonite at the nanoscale: two different structural-compositional fields

Glauconite and celadonite coexist at the nanometre scale in Early Jurassic\nsubmarine volcanic rocks of the Betic Cordillera (southern Spain) as a\nresult of microbial activity. Samples from the limit between the two micas, \nrecognizable in scanning electron microscopy, have been extracted using th...

Descripción completa

Detalles Bibliográficos
Autores: Nieto, Fernando, Abad, Isabel, Bauluz, Blanca, Reolid, Matías
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2021
País:España
Institución:Universidad de Zaragoza
Repositorio:Zaguán. Repositorio Digital de la Universidad de Zaragoza
OAI Identifier:oai:zaguan.unizar.es:109426
Acceso en línea:http://zaguan.unizar.es/record/109426
Access Level:acceso abierto
id ES_82f5e2e64ee82aa0280dfe2274a1dfba
oai_identifier_str oai:zaguan.unizar.es:109426
network_acronym_str ES
network_name_str España
repository_id_str
spelling Textural and genetic relationships between glauconite and celadonite at the nanoscale: two different structural-compositional fieldsNieto, FernandoAbad, IsabelBauluz, BlancaReolid, MatíasGlauconite and celadonite coexist at the nanometre scale in Early Jurassic\nsubmarine volcanic rocks of the Betic Cordillera (southern Spain) as a\nresult of microbial activity. Samples from the limit between the two micas, \nrecognizable in scanning electron microscopy, have been extracted using the\nfocussed ion beam technique and studied by high-resolution analytical\nelectron microscopy. Both micas are present as randomly oriented\ndifferentiated small crystals in the boundary area. They define clearly\ndistinct compositional fields with gaps affecting to Fe, Mg and K. At the\nlattice scale, celadonite shows a high degree of order, with homogeneous\norientation of the visible lattice parameters being a difference from\nglauconite, formed by packets no more than 10-layers thick. Smectite layers\nwere also detected alongside glauconite packets, in accordance with X-ray\ndiffractograms which indicate that glauconite is a mica-smectite\ninterstratification being more than 90\u2009% mica layers. The compositional\ngap indicates that celadonite is not the endmember of the glauconitic series\nand the two micas represent two different structural tendencies of mica, \nwith glauconite having more distorted octahedral sheets, indicated by\nsystematically higher b parameters than celadonite.2021info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://zaguan.unizar.es/record/109426reponame:Zaguán. Repositorio Digital de la Universidad de Zaragozainstname:Universidad de ZaragozaInglésinfo:eu-repo/grantAgreement/ES/DGA/E18-17Rinfo:eu-repo/grantAgreement/ES/MCIU-AEI-FEDER/PGC2018-094573-B-I00info:eu-repo/grantAgreement/ES/MCIU-AEI-FEDER/PID2019-104624RB-I00info:eu-repo/grantAgreement/ES/MCIU-AEI-FEDER/RTI2018-093419-B-I00info:eu-repo/semantics/openAccessoai:zaguan.unizar.es:1094262026-05-29T13:59:51Z
dc.title.none.fl_str_mv Textural and genetic relationships between glauconite and celadonite at the nanoscale: two different structural-compositional fields
title Textural and genetic relationships between glauconite and celadonite at the nanoscale: two different structural-compositional fields
spellingShingle Textural and genetic relationships between glauconite and celadonite at the nanoscale: two different structural-compositional fields
Nieto, Fernando
title_short Textural and genetic relationships between glauconite and celadonite at the nanoscale: two different structural-compositional fields
title_full Textural and genetic relationships between glauconite and celadonite at the nanoscale: two different structural-compositional fields
title_fullStr Textural and genetic relationships between glauconite and celadonite at the nanoscale: two different structural-compositional fields
title_full_unstemmed Textural and genetic relationships between glauconite and celadonite at the nanoscale: two different structural-compositional fields
title_sort Textural and genetic relationships between glauconite and celadonite at the nanoscale: two different structural-compositional fields
dc.creator.none.fl_str_mv Nieto, Fernando
Abad, Isabel
Bauluz, Blanca
Reolid, Matías
author Nieto, Fernando
author_facet Nieto, Fernando
Abad, Isabel
Bauluz, Blanca
Reolid, Matías
author_role author
author2 Abad, Isabel
Bauluz, Blanca
Reolid, Matías
author2_role author
author
author
description Glauconite and celadonite coexist at the nanometre scale in Early Jurassic\nsubmarine volcanic rocks of the Betic Cordillera (southern Spain) as a\nresult of microbial activity. Samples from the limit between the two micas, \nrecognizable in scanning electron microscopy, have been extracted using the\nfocussed ion beam technique and studied by high-resolution analytical\nelectron microscopy. Both micas are present as randomly oriented\ndifferentiated small crystals in the boundary area. They define clearly\ndistinct compositional fields with gaps affecting to Fe, Mg and K. At the\nlattice scale, celadonite shows a high degree of order, with homogeneous\norientation of the visible lattice parameters being a difference from\nglauconite, formed by packets no more than 10-layers thick. Smectite layers\nwere also detected alongside glauconite packets, in accordance with X-ray\ndiffractograms which indicate that glauconite is a mica-smectite\ninterstratification being more than 90\u2009% mica layers. The compositional\ngap indicates that celadonite is not the endmember of the glauconitic series\nand the two micas represent two different structural tendencies of mica, \nwith glauconite having more distorted octahedral sheets, indicated by\nsystematically higher b parameters than celadonite.
publishDate 2021
dc.date.none.fl_str_mv 2021
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://zaguan.unizar.es/record/109426
url http://zaguan.unizar.es/record/109426
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv info:eu-repo/grantAgreement/ES/DGA/E18-17R
info:eu-repo/grantAgreement/ES/MCIU-AEI-FEDER/PGC2018-094573-B-I00
info:eu-repo/grantAgreement/ES/MCIU-AEI-FEDER/PID2019-104624RB-I00
info:eu-repo/grantAgreement/ES/MCIU-AEI-FEDER/RTI2018-093419-B-I00
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv
publisher.none.fl_str_mv
dc.source.none.fl_str_mv reponame:Zaguán. Repositorio Digital de la Universidad de Zaragoza
instname:Universidad de Zaragoza
instname_str Universidad de Zaragoza
reponame_str Zaguán. Repositorio Digital de la Universidad de Zaragoza
collection Zaguán. Repositorio Digital de la Universidad de Zaragoza
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1869412099126460416
score 15,301629

Similares en LA Referencia