Analog and numerical experiments of double subduction systems with 6 opposite polarity in adjacent segments

Datasets for this article are available in 655 http://hdl.handle.net/20.500.11850/364963 (DOI: 10.3929/ethz-b-000364963).

Detalles Bibliográficos
Autores: Peral, M., Ruh, Jonas Bruno, Zlotnik, Sergio, Funiciello, Francesca, Fernández Ortiga, Manel, Vergés Masip, Jaume, Gerya, Taras V.
Tipo de recurso: artículo
Estado:Versión aceptada para publicación
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:10261/213898
Acceso en línea:http://hdl.handle.net/10261/213898
Access Level:acceso abierto
Palabra clave:Plate deformation
Trench curvature
Trench retreat
Numerical and analog models
Mantle flow/plate interaction
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spelling Analog and numerical experiments of double subduction systems with 6 opposite polarity in adjacent segmentsPeral, M.Ruh, Jonas BrunoZlotnik, SergioFuniciello, FrancescaFernández Ortiga, ManelVergés Masip, JaumeGerya, Taras V.Plate deformationTrench curvatureTrench retreatNumerical and analog modelsMantle flow/plate interactionDatasets for this article are available in 655 http://hdl.handle.net/20.500.11850/364963 (DOI: 10.3929/ethz-b-000364963).In this work we study the dynamics of double subduction systems with opposite polarity in adjacent segments. A combined approach of numerical and analog experiments allows us to compare results and exploit the strengths of both methodologies. High‐resolution numerical experiments complement laboratory results by providing quantities difficult to measure in the laboratory such as stress state, flow patterns and energy dissipation. Results show strong asymmetries in the mantle flow that produce in turn asymmetries in the trench and in the downgoing slab deformation. The mantle flow pattern varies with time; the toroidal cells between the plates evolve until merging into one unique cell when the trenches align. In that moment the maximum upward flow is observed close to the trenches. The interaction between the mantle flow produced by each subducting plate makes the rollback processes slower than in a single subduction case. This is consistent with the observed energy dissipation rate that is smaller in the double subduction system than in two single subductions. Moreover, we provide a detailed analysis on the setup and boundary conditions required to numerically reproduce the analog experiments. Boundary conditions at the bottom of the domain are crucial to reproduce their analog counterparts. Numerical results are compared to natural examples of multi‐slab subduction systems in terms of upper mantle seismic anisotropy, relative trench‐retreat velocities and composition of subduction‐related magmatism.This work is part of the PhD Thesis of MP developed under the projects SUBTETIS647 CSIC-201830E039, and AGAUR 2017-SGR-847/2017-SGR-1471. We also thank projects 648 AECT-2018-1-0007 and AECT-2018-3-0007 of the Barcelona Supercomputing Center (BSC649 CNS). JR was supported by the Swiss National Science Foundation (grant number 2-77297-15). 650 SZ thank the funding from AGAUR 2017-SGR-1278, the Agencia Estatal de Investigación 651 project DPI2017-85139-C2-2-R and the European Union project H2020-RISE MATHROCKS 652 GA nº 777778. The grant provided to the Department of Science, Roma Tre University (MIUR653 ITALY Dipartimenti di Eccellenza, ARTICOLO 1, COMMI 314‐337 LEGGE 232/2016) is 654 gratefully acknowledged by F.F.Peer reviewedAmerican Geophysical UnionCentro de Supercomputación de CataluñaSwiss National Science FoundationAgencia Estatal de Investigación (España)European CommissionUniversità degli Studi Roma TrePeral, Mireia [0000-0001-8026-2753]Ruh, Jonas Bruno [0000-0001-7035-1453]Zlotnik, Sergio [0000-0001-9674-8950]Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]202020202020info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Postprintinfo:eu-repo/semantics/acceptedVersionhttp://hdl.handle.net/10261/213898reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE#info:eu-repo/grantAgreement/EC/H2020/777778https://doi.org/10.1029/2020GC009035Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/2138982026-05-22T06:33:51Z
dc.title.none.fl_str_mv Analog and numerical experiments of double subduction systems with 6 opposite polarity in adjacent segments
title Analog and numerical experiments of double subduction systems with 6 opposite polarity in adjacent segments
spellingShingle Analog and numerical experiments of double subduction systems with 6 opposite polarity in adjacent segments
Peral, M.
Plate deformation
Trench curvature
Trench retreat
Numerical and analog models
Mantle flow/plate interaction
title_short Analog and numerical experiments of double subduction systems with 6 opposite polarity in adjacent segments
title_full Analog and numerical experiments of double subduction systems with 6 opposite polarity in adjacent segments
title_fullStr Analog and numerical experiments of double subduction systems with 6 opposite polarity in adjacent segments
title_full_unstemmed Analog and numerical experiments of double subduction systems with 6 opposite polarity in adjacent segments
title_sort Analog and numerical experiments of double subduction systems with 6 opposite polarity in adjacent segments
dc.creator.none.fl_str_mv Peral, M.
Ruh, Jonas Bruno
Zlotnik, Sergio
Funiciello, Francesca
Fernández Ortiga, Manel
Vergés Masip, Jaume
Gerya, Taras V.
author Peral, M.
author_facet Peral, M.
Ruh, Jonas Bruno
Zlotnik, Sergio
Funiciello, Francesca
Fernández Ortiga, Manel
Vergés Masip, Jaume
Gerya, Taras V.
author_role author
author2 Ruh, Jonas Bruno
Zlotnik, Sergio
Funiciello, Francesca
Fernández Ortiga, Manel
Vergés Masip, Jaume
Gerya, Taras V.
author2_role author
author
author
author
author
author
dc.contributor.none.fl_str_mv Centro de Supercomputación de Cataluña
Swiss National Science Foundation
Agencia Estatal de Investigación (España)
European Commission
Università degli Studi Roma Tre
Peral, Mireia [0000-0001-8026-2753]
Ruh, Jonas Bruno [0000-0001-7035-1453]
Zlotnik, Sergio [0000-0001-9674-8950]
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Plate deformation
Trench curvature
Trench retreat
Numerical and analog models
Mantle flow/plate interaction
topic Plate deformation
Trench curvature
Trench retreat
Numerical and analog models
Mantle flow/plate interaction
description Datasets for this article are available in 655 http://hdl.handle.net/20.500.11850/364963 (DOI: 10.3929/ethz-b-000364963).
publishDate 2020
dc.date.none.fl_str_mv 2020
2020
2020
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Postprint
info:eu-repo/semantics/acceptedVersion
format article
status_str acceptedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/213898
url http://hdl.handle.net/10261/213898
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv #PLACEHOLDER_PARENT_METADATA_VALUE#
info:eu-repo/grantAgreement/EC/H2020/777778
https://doi.org/10.1029/2020GC009035
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv American Geophysical Union
publisher.none.fl_str_mv American Geophysical Union
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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