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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Autores: Cardenes, Victor, Merinero Palomares, Raúl, Rubio Ordoñez, Álvaro, Cnudde, Veerle, García Guinea, Javier, Pitcairn, Iain K.
Tipo de recurso: artículo
Fecha de publicación:2020
País:España
Institución:Universidad Complutense de Madrid (UCM)
Repositorio:Docta Complutense
Idioma:inglés
OAI Identifier:oai:docta.ucm.es:20.500.14352/6348
Acceso en línea:https://hdl.handle.net/20.500.14352/6348
Access Level:acceso abierto
Palabra clave:553.31:552.16
micro-pyrite
framboids
micro-tomography
size distribution
morphological evolution
Mineralogía (Geología)
Petrología
2506.11 Mineralogía
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network_name_str España
repository_id_str
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, VictorMerinero Palomares, RaúlRubio Ordoñez, ÁlvaroCnudde, VeerleGarcía Guinea, JavierPitcairn, Iain K.553.31:552.16micro-pyriteframboidsmicro-tomographysize distributionmorphological evolutionMineralogía (Geología)Petrología2506.11 MineralogíaIt 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.MDPIUniversidad Complutense de Madrid20202020-05-1920202020-05-19journal articlehttp://purl.org/coar/resource_type/c_6501info:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/20.500.14352/6348reponame:Docta Complutenseinstname:Universidad Complutense de Madrid (UCM)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2Atribución 3.0 Españahttps://creativecommons.org/licenses/by/3.0/es/info:eu-repo/semantics/openAccessoai:docta.ucm.es:20.500.14352/63482026-06-02T12:44:21Z
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, Victor
553.31:552.16
micro-pyrite
framboids
micro-tomography
size distribution
morphological evolution
Mineralogía (Geología)
Petrología
2506.11 Mineralogía
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, Victor
Merinero Palomares, Raúl
Rubio Ordoñez, Álvaro
Cnudde, Veerle
García Guinea, Javier
Pitcairn, Iain K.
author Cardenes, Victor
author_facet Cardenes, Victor
Merinero Palomares, Raúl
Rubio Ordoñez, Álvaro
Cnudde, Veerle
García Guinea, Javier
Pitcairn, Iain K.
author_role author
author2 Merinero Palomares, Raúl
Rubio Ordoñez, Álvaro
Cnudde, Veerle
García Guinea, Javier
Pitcairn, Iain K.
author2_role author
author
author
author
author
dc.contributor.none.fl_str_mv Universidad Complutense de Madrid
dc.subject.none.fl_str_mv 553.31:552.16
micro-pyrite
framboids
micro-tomography
size distribution
morphological evolution
Mineralogía (Geología)
Petrología
2506.11 Mineralogía
topic 553.31:552.16
micro-pyrite
framboids
micro-tomography
size distribution
morphological evolution
Mineralogía (Geología)
Petrología
2506.11 Mineralogía
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
2020-05-19
2020
2020-05-19
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/20.500.14352/6348
url https://hdl.handle.net/20.500.14352/6348
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
Atribución 3.0 España
https://creativecommons.org/licenses/by/3.0/es/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
Atribución 3.0 España
https://creativecommons.org/licenses/by/3.0/es/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv MDPI
publisher.none.fl_str_mv MDPI
dc.source.none.fl_str_mv reponame:Docta Complutense
instname:Universidad Complutense de Madrid (UCM)
instname_str Universidad Complutense de Madrid (UCM)
reponame_str Docta Complutense
collection Docta Complutense
repository.name.fl_str_mv
repository.mail.fl_str_mv
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