A morphological and size-based study of the changes of iron sulfides in the caples and torlesse terranes (Otago Schist, New Zealand) during prograde metamorphic evolution

It is widely accepted that metamorphism induces a remobilization of iron sulfides, sweeping away original ones while creating new ones. This paper analyzes size distributions of iron sulfides in several samples from the Caples and Torlesse terranes from the Otago Schist (New Zealand) using high-reso...

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Detalles Bibliográficos
Autores: Cardenes, Víctor, Merinero, Raúl, Rubio-Ordóñez, Álvaro, Cnudde, Veerle, García-Guinea, Javier, Pitcairn, Iain K.
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2020
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/234889
Acceso en línea:http://hdl.handle.net/10261/234889
Access Level:acceso abierto
Palabra clave:Micro-pyrite
Framboids
Micro-tomography
Size distribution
Morphological evolution
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spelling A morphological and size-based study of the changes of iron sulfides in the caples and torlesse terranes (Otago Schist, New Zealand) during prograde metamorphic evolutionCardenes, VíctorMerinero, RaúlRubio-Ordóñez, ÁlvaroCnudde, VeerleGarcía-Guinea, JavierPitcairn, Iain K.Micro-pyriteFramboidsMicro-tomographySize distributionMorphological evolutionIt is widely accepted that metamorphism induces a remobilization of iron sulfides, sweeping away original ones while creating new ones. This paper analyzes size distributions of iron sulfides in several samples from the Caples and Torlesse terranes from the Otago Schist (New Zealand) using high-resolution X-ray computed tomography, which allows all iron sulfides larger than the resolution at which X-ray scans were performed to be characterized. Framboids and clusters of framboids are common in unmetamorphosed samples, but disappear in greenschist/amphibolite facies samples, where iron sulfides have anhedral habits. By contrast, the size and standard deviation of the new iron sulfides both remain within the same range. The results illuminate the evolution of iron sulfides throughout metamorphism, proposing boundaries for the metamorphic processes based on the shape of these iron sulfides.This work has been funded by the project Marie Curie IEF 623082 TOMOSLATE, granted by the European Research Council, and partially funded by the project PA-18-ACB17-11, from the Program Marie-Curie COFUND funded by the European Union, Government of Asturias (Spain) and the Spanish FICYT.Molecular Diversity Preservation InternationalEuropean Research CouncilEuropean CommissionPrincipado de AsturiasConsejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]2021202120202021info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionhttp://hdl.handle.net/10261/234889reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Ingléshttp://dx.doi.org/10.3390/min10050459Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/2348892026-05-22T06:33:51Z
dc.title.none.fl_str_mv A morphological and size-based study of the changes of iron sulfides in the caples and torlesse terranes (Otago Schist, New Zealand) during prograde metamorphic evolution
title A morphological and size-based study of the changes of iron sulfides in the caples and torlesse terranes (Otago Schist, New Zealand) during prograde metamorphic evolution
spellingShingle A morphological and size-based study of the changes of iron sulfides in the caples and torlesse terranes (Otago Schist, New Zealand) during prograde metamorphic evolution
Cardenes, Víctor
Micro-pyrite
Framboids
Micro-tomography
Size distribution
Morphological evolution
title_short A morphological and size-based study of the changes of iron sulfides in the caples and torlesse terranes (Otago Schist, New Zealand) during prograde metamorphic evolution
title_full A morphological and size-based study of the changes of iron sulfides in the caples and torlesse terranes (Otago Schist, New Zealand) during prograde metamorphic evolution
title_fullStr A morphological and size-based study of the changes of iron sulfides in the caples and torlesse terranes (Otago Schist, New Zealand) during prograde metamorphic evolution
title_full_unstemmed A morphological and size-based study of the changes of iron sulfides in the caples and torlesse terranes (Otago Schist, New Zealand) during prograde metamorphic evolution
title_sort A morphological and size-based study of the changes of iron sulfides in the caples and torlesse terranes (Otago Schist, New Zealand) during prograde metamorphic evolution
dc.creator.none.fl_str_mv Cardenes, Víctor
Merinero, Raúl
Rubio-Ordóñez, Álvaro
Cnudde, Veerle
García-Guinea, Javier
Pitcairn, Iain K.
author Cardenes, Víctor
author_facet Cardenes, Víctor
Merinero, Raúl
Rubio-Ordóñez, Álvaro
Cnudde, Veerle
García-Guinea, Javier
Pitcairn, Iain K.
author_role author
author2 Merinero, Raúl
Rubio-Ordóñez, Álvaro
Cnudde, Veerle
García-Guinea, Javier
Pitcairn, Iain K.
author2_role author
author
author
author
author
dc.contributor.none.fl_str_mv European Research Council
European Commission
Principado de Asturias
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Micro-pyrite
Framboids
Micro-tomography
Size distribution
Morphological evolution
topic Micro-pyrite
Framboids
Micro-tomography
Size distribution
Morphological evolution
description It is widely accepted that metamorphism induces a remobilization of iron sulfides, sweeping away original ones while creating new ones. This paper analyzes size distributions of iron sulfides in several samples from the Caples and Torlesse terranes from the Otago Schist (New Zealand) using high-resolution X-ray computed tomography, which allows all iron sulfides larger than the resolution at which X-ray scans were performed to be characterized. Framboids and clusters of framboids are common in unmetamorphosed samples, but disappear in greenschist/amphibolite facies samples, where iron sulfides have anhedral habits. By contrast, the size and standard deviation of the new iron sulfides both remain within the same range. The results illuminate the evolution of iron sulfides throughout metamorphism, proposing boundaries for the metamorphic processes based on the shape of these iron sulfides.
publishDate 2020
dc.date.none.fl_str_mv 2020
2021
2021
2021
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Publisher's version
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/234889
url http://hdl.handle.net/10261/234889
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv http://dx.doi.org/10.3390/min10050459
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Molecular Diversity Preservation International
publisher.none.fl_str_mv Molecular Diversity Preservation International
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 15,811543

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