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Growth of Neogene Andes linked to changes in plate convergence using high-resolution kinematic models

The Andean cordillera was constructed during compressive tectonic events, whose causes and controls remain unclear. Exploring a possible link to plate convergence has been impeded by the coarse temporal resolution of existing plate kinematic models. Here we show that the Neogene evolution of the And...

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Autores principales: Quiero, Felipe, Tassara, Andrés, Iaffaldano, Giampiero, Rabbia, Osvaldo
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8924272/
https://www.ncbi.nlm.nih.gov/pubmed/35292661
http://dx.doi.org/10.1038/s41467-022-29055-4
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author Quiero, Felipe
Tassara, Andrés
Iaffaldano, Giampiero
Rabbia, Osvaldo
author_facet Quiero, Felipe
Tassara, Andrés
Iaffaldano, Giampiero
Rabbia, Osvaldo
author_sort Quiero, Felipe
collection PubMed
description The Andean cordillera was constructed during compressive tectonic events, whose causes and controls remain unclear. Exploring a possible link to plate convergence has been impeded by the coarse temporal resolution of existing plate kinematic models. Here we show that the Neogene evolution of the Andean margin is primarily related to changes in convergence as observed in new high-resolution plate reconstructions. Building on a compilation of plate finite rotations spanning the last 30 million years and using noise-mitigation techniques, we predict several short-term convergence changes that were unresolved in previous models. These changes are related to main tectono-magmatic events and require forces that are compatible with a range of geodynamic processes. These results allow to revise models of ongoing subduction orogeny at its type locality, emphasizing the role of upper plate deformation in the balance between kinematic energy associated with plate motion and gravitational potential energy stored in orogenic crustal roots.
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spelling pubmed-89242722022-04-01 Growth of Neogene Andes linked to changes in plate convergence using high-resolution kinematic models Quiero, Felipe Tassara, Andrés Iaffaldano, Giampiero Rabbia, Osvaldo Nat Commun Article The Andean cordillera was constructed during compressive tectonic events, whose causes and controls remain unclear. Exploring a possible link to plate convergence has been impeded by the coarse temporal resolution of existing plate kinematic models. Here we show that the Neogene evolution of the Andean margin is primarily related to changes in convergence as observed in new high-resolution plate reconstructions. Building on a compilation of plate finite rotations spanning the last 30 million years and using noise-mitigation techniques, we predict several short-term convergence changes that were unresolved in previous models. These changes are related to main tectono-magmatic events and require forces that are compatible with a range of geodynamic processes. These results allow to revise models of ongoing subduction orogeny at its type locality, emphasizing the role of upper plate deformation in the balance between kinematic energy associated with plate motion and gravitational potential energy stored in orogenic crustal roots. Nature Publishing Group UK 2022-03-15 /pmc/articles/PMC8924272/ /pubmed/35292661 http://dx.doi.org/10.1038/s41467-022-29055-4 Text en © The Author(s) 2022 https://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) .
spellingShingle Article
Quiero, Felipe
Tassara, Andrés
Iaffaldano, Giampiero
Rabbia, Osvaldo
Growth of Neogene Andes linked to changes in plate convergence using high-resolution kinematic models
title Growth of Neogene Andes linked to changes in plate convergence using high-resolution kinematic models
title_full Growth of Neogene Andes linked to changes in plate convergence using high-resolution kinematic models
title_fullStr Growth of Neogene Andes linked to changes in plate convergence using high-resolution kinematic models
title_full_unstemmed Growth of Neogene Andes linked to changes in plate convergence using high-resolution kinematic models
title_short Growth of Neogene Andes linked to changes in plate convergence using high-resolution kinematic models
title_sort growth of neogene andes linked to changes in plate convergence using high-resolution kinematic models
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8924272/
https://www.ncbi.nlm.nih.gov/pubmed/35292661
http://dx.doi.org/10.1038/s41467-022-29055-4
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