Microstructure and CPO evolution of dynamically recrystallized olivine during complex deformation conditions: a full-field numerical modeling approach

The rheological properties of mantle rocks are strongly dependent on their crystallographic preferred orientation (CPO). Olivine CPO, defined by the orientation of seismically fast [100] axes parallel to flow direction, is also thought to be a dominant contributor to seismic anisotropy in the Earth&...

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Autores: Yu, Yuanchao, Griera, Albert, Gómez-Rivas, Enrique, Bons, Paul D., García-Castellanos, Daniel, Hao, Baoqin, Lebensohn, Ricardo A., Seltzer, Cassandra, Llorens, Maria-Gema
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2025
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:dnet:digitalcsic_::3f08b15a94e522adff32dd90af2fa012
Acceso en línea:http://hdl.handle.net/10261/430742
Access Level:acceso abierto
Palabra clave:Olivine
Dynamic recrystallization
Crystallographic preferred orientation
Seismic anisotropy
Multistage deformation
Numerical modeling
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dc.title.none.fl_str_mv Microstructure and CPO evolution of dynamically recrystallized olivine during complex deformation conditions: a full-field numerical modeling approach
title Microstructure and CPO evolution of dynamically recrystallized olivine during complex deformation conditions: a full-field numerical modeling approach
spellingShingle Microstructure and CPO evolution of dynamically recrystallized olivine during complex deformation conditions: a full-field numerical modeling approach
Yu, Yuanchao
Olivine
Dynamic recrystallization
Crystallographic preferred orientation
Seismic anisotropy
Multistage deformation
Numerical modeling
title_short Microstructure and CPO evolution of dynamically recrystallized olivine during complex deformation conditions: a full-field numerical modeling approach
title_full Microstructure and CPO evolution of dynamically recrystallized olivine during complex deformation conditions: a full-field numerical modeling approach
title_fullStr Microstructure and CPO evolution of dynamically recrystallized olivine during complex deformation conditions: a full-field numerical modeling approach
title_full_unstemmed Microstructure and CPO evolution of dynamically recrystallized olivine during complex deformation conditions: a full-field numerical modeling approach
title_sort Microstructure and CPO evolution of dynamically recrystallized olivine during complex deformation conditions: a full-field numerical modeling approach
dc.creator.none.fl_str_mv Yu, Yuanchao
Griera, Albert
Gómez-Rivas, Enrique
Bons, Paul D.
García-Castellanos, Daniel
Hao, Baoqin
Lebensohn, Ricardo A.
Seltzer, Cassandra
Llorens, Maria-Gema
author Yu, Yuanchao
author_facet Yu, Yuanchao
Griera, Albert
Gómez-Rivas, Enrique
Bons, Paul D.
García-Castellanos, Daniel
Hao, Baoqin
Lebensohn, Ricardo A.
Seltzer, Cassandra
Llorens, Maria-Gema
author_role author
author2 Griera, Albert
Gómez-Rivas, Enrique
Bons, Paul D.
García-Castellanos, Daniel
Hao, Baoqin
Lebensohn, Ricardo A.
Seltzer, Cassandra
Llorens, Maria-Gema
author2_role author
author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv China Scholarship Council
Ministerio de Ciencia e Innovación (España)
Agencia Estatal de Investigación (España)
European Commission
Generalitat de Catalunya
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Olivine
Dynamic recrystallization
Crystallographic preferred orientation
Seismic anisotropy
Multistage deformation
Numerical modeling
topic Olivine
Dynamic recrystallization
Crystallographic preferred orientation
Seismic anisotropy
Multistage deformation
Numerical modeling
description The rheological properties of mantle rocks are strongly dependent on their crystallographic preferred orientation (CPO). Olivine CPO, defined by the orientation of seismically fast [100] axes parallel to flow direction, is also thought to be a dominant contributor to seismic anisotropy in the Earth's upper mantle. However, the amount of deformation needed to overprint a new CPO on a pre-existing fabric and the impact of the inherited CPOs on the transient microstructure evolution, remain unknown. This study employs a full-field numerical approach (VPFFT-ELLE) to explore the dynamic recrystallization and microstructural evolution of olivine polycrystalline aggregates under complex deformation conditions. We test four combinations of successive pure shear and simple shear boundary conditions. Findings indicate that inherited CPOs influence subsequent deformation in a manner dependent on the kinematic relationship between successive stages. In all cases, a minor strain increment (ε ∼0.3–0.6) is sufficient to erase the previous microstructure and CPO. However, when deformation conditions change dramatically (e.g., stretching direction changes orthogonally), the intensity of the new CPO developed is significantly lower and strain distribution are specially altered. During a transient strain stage, pre-existing microstructures undergo extensive reworking, especially when deformation conditions are changed dramatically, such as switching from simple shear to a pure shear condition with a parallel shortening direction relative to the stretching direction. We estimate the significance of these results in interpreting observations of seismic velocity anisotropy, concluding that P-wave seismic anisotropy is significantly and positively correlated with the evolution of olivine CPO with deformation history. This research underscores the transient nature of microstructural rearrangement in olivine aggregates and the necessity for caution in interpreting seismic anisotropy in regions with complex deformation histories, as inherited CPOs can influence current fabric development and induce deviation to the present deformation conditions.
publishDate 2025
dc.date.none.fl_str_mv 2025
2026
2026
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
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status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/430742
url http://hdl.handle.net/10261/430742
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
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info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2021-2023/PID2021-122467NB-C21
info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2020-118999GB-I00
The underlying dataset has been published as supplementary material of the article in the publisher platform at DOI https://doi.org/10.1016/j.jsg.2025.105500
https://doi.org/10.1016/j.jsg.2025.105500
Sí
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dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
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
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spelling Microstructure and CPO evolution of dynamically recrystallized olivine during complex deformation conditions: a full-field numerical modeling approachYu, YuanchaoGriera, AlbertGómez-Rivas, EnriqueBons, Paul D.García-Castellanos, DanielHao, BaoqinLebensohn, Ricardo A.Seltzer, CassandraLlorens, Maria-GemaOlivineDynamic recrystallizationCrystallographic preferred orientationSeismic anisotropyMultistage deformationNumerical modelingThe rheological properties of mantle rocks are strongly dependent on their crystallographic preferred orientation (CPO). Olivine CPO, defined by the orientation of seismically fast [100] axes parallel to flow direction, is also thought to be a dominant contributor to seismic anisotropy in the Earth's upper mantle. However, the amount of deformation needed to overprint a new CPO on a pre-existing fabric and the impact of the inherited CPOs on the transient microstructure evolution, remain unknown. This study employs a full-field numerical approach (VPFFT-ELLE) to explore the dynamic recrystallization and microstructural evolution of olivine polycrystalline aggregates under complex deformation conditions. We test four combinations of successive pure shear and simple shear boundary conditions. Findings indicate that inherited CPOs influence subsequent deformation in a manner dependent on the kinematic relationship between successive stages. In all cases, a minor strain increment (ε ∼0.3–0.6) is sufficient to erase the previous microstructure and CPO. However, when deformation conditions change dramatically (e.g., stretching direction changes orthogonally), the intensity of the new CPO developed is significantly lower and strain distribution are specially altered. During a transient strain stage, pre-existing microstructures undergo extensive reworking, especially when deformation conditions are changed dramatically, such as switching from simple shear to a pure shear condition with a parallel shortening direction relative to the stretching direction. We estimate the significance of these results in interpreting observations of seismic velocity anisotropy, concluding that P-wave seismic anisotropy is significantly and positively correlated with the evolution of olivine CPO with deformation history. This research underscores the transient nature of microstructural rearrangement in olivine aggregates and the necessity for caution in interpreting seismic anisotropy in regions with complex deformation histories, as inherited CPOs can influence current fabric development and induce deviation to the present deformation conditions.Yuanchao Yu acknowledges funding by the China Scholarship Council for a PhD scholarship (CSC-202008130104). This study was supported by DGICYT Spanish Projects PID-2021-122467NB-C21 and PID2022-139943NB-I00 (funded by the Ministerio de Ciencia e Innovación/Agencia Estatal de Investigación/10.13039/501100011033 and EU-FEDER), project PID2020-118999 GB-I00 (funded by the Ministerio de Ciencia e Innovación/Agencia Estatal de Investigación/10.13039/501100011033), and projects 2021 SGR 00349 “Geologia Sedimentària and 2021 SGR 00410 “GDL—Grup de Modelització Geodinàmica de la Litosfera” (funded by AGAUR). We acknowledge the “Consolidación Investigadora” Grants CNS2022-135819 (to MGL) and CNS2023-145382 (to EGR) (funded by MCIN/AEI/10.13039/50110001103 and European Union NextGenerationEU/PRTR).Peer reviewedElsevierChina Scholarship CouncilMinisterio de Ciencia e Innovación (España)Agencia Estatal de Investigación (España)European CommissionGeneralitat de CatalunyaConsejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]202620262025info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://hdl.handle.net/10261/430742reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE#info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2021-2023/PID2021-122467NB-C21info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2020-118999GB-I00The underlying dataset has been published as supplementary material of the article in the publisher platform at DOI https://doi.org/10.1016/j.jsg.2025.105500https://doi.org/10.1016/j.jsg.2025.105500Síinfo:eu-repo/semantics/openAccessoai:dnet:digitalcsic_::3f08b15a94e522adff32dd90af2fa0122026-05-22T06:33:51Z
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