The role of compressional structures in the development of collapse calderas: Insights from analogue models

Autores
Villarroel, Matías A.; Browning, John; Jara, Pamela P.; Harnett, Claire E.; Holohan, Eoghan P.; Marquardt, Carlos J.; Guzman, Matías; Likerman, Jeremias
Año de publicación
2026
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Caldera volcano systems in compressional tectonic settings exhibit complex deformation histories shaped by the interaction between magmatic and tectonic processes. This study presents a series of analogue experiments designed to investigate how tectonic shortening induced from regional compression, represented by a fold-and-thrust belt (FTB), interacts with caldera collapse structures. Two experimental scenarios were tested: (1) collapse followed by regional compression and (2) regional compression preceding collapse. Regional shortening after collapse yielded elliptical collapse structures with a thrust-parallel elongation of the caldera outline. The models further indicate that advancing thrusts can locally reactivate suitably orientated sections of collapse-related ring-faults at the thrust front. Conversely, collapse after regional shortening did not involve significant reactivation of pre-existing thrust faults, because their low dip angles render them sub-optimally orientated for reactivation. On the other hand, models show that a thrust-related thickening of the magma reservoir roof can inhibit ring-fault localisation and propagation and can potentially lead to a thrust-perpendicular elongation of the caldera outline. Comparisons with natural calderas in the Central Andes (e.g., Jorquera, Bellavista, Puquios and Diamante calderas) and in Japan (Akaigawa caldera) reveal similar aspect ratios and structural trends, supporting the wider relevance of the experimental findings for understanding interactions between caldera formation and regional tectonics.
Fil: Villarroel, Matías A.. Universidad de Dublin; Irlanda. Pontificia Universidad Católica de Chile; Chile
Fil: Browning, John. Pontificia Universidad Católica de Chile; Chile
Fil: Jara, Pamela P.. Universidad de Santiago de Chile; Chile
Fil: Harnett, Claire E.. Universidad de Dublin; Irlanda
Fil: Holohan, Eoghan P.. Universidad de Dublin; Irlanda
Fil: Marquardt, Carlos J.. Pontificia Universidad Católica de Chile; Chile
Fil: Guzman, Matías. Universidad de Santiago de Chile. Dto de Geología; Chile
Fil: Likerman, Jeremias. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Estudios Andinos "Don Pablo Groeber". Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Estudios Andinos "Don Pablo Groeber"; Argentina
Materia
Collapse calderas
Fold-and-thrust belt
Inherited structure
Analogue models
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/285549
Acceder
id CONICETDig_5da810d52fe552daadc4e4fbf2920243
oai_identifier_str oai:ri.conicet.gov.ar:11336/285549
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling The role of compressional structures in the development of collapse calderas: Insights from analogue modelsVillarroel, Matías A.Browning, JohnJara, Pamela P.Harnett, Claire E.Holohan, Eoghan P.Marquardt, Carlos J.Guzman, MatíasLikerman, JeremiasCollapse calderasFold-and-thrust beltInherited structureAnalogue modelshttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1Caldera volcano systems in compressional tectonic settings exhibit complex deformation histories shaped by the interaction between magmatic and tectonic processes. This study presents a series of analogue experiments designed to investigate how tectonic shortening induced from regional compression, represented by a fold-and-thrust belt (FTB), interacts with caldera collapse structures. Two experimental scenarios were tested: (1) collapse followed by regional compression and (2) regional compression preceding collapse. Regional shortening after collapse yielded elliptical collapse structures with a thrust-parallel elongation of the caldera outline. The models further indicate that advancing thrusts can locally reactivate suitably orientated sections of collapse-related ring-faults at the thrust front. Conversely, collapse after regional shortening did not involve significant reactivation of pre-existing thrust faults, because their low dip angles render them sub-optimally orientated for reactivation. On the other hand, models show that a thrust-related thickening of the magma reservoir roof can inhibit ring-fault localisation and propagation and can potentially lead to a thrust-perpendicular elongation of the caldera outline. Comparisons with natural calderas in the Central Andes (e.g., Jorquera, Bellavista, Puquios and Diamante calderas) and in Japan (Akaigawa caldera) reveal similar aspect ratios and structural trends, supporting the wider relevance of the experimental findings for understanding interactions between caldera formation and regional tectonics.Fil: Villarroel, Matías A.. Universidad de Dublin; Irlanda. Pontificia Universidad Católica de Chile; ChileFil: Browning, John. Pontificia Universidad Católica de Chile; ChileFil: Jara, Pamela P.. Universidad de Santiago de Chile; ChileFil: Harnett, Claire E.. Universidad de Dublin; IrlandaFil: Holohan, Eoghan P.. Universidad de Dublin; IrlandaFil: Marquardt, Carlos J.. Pontificia Universidad Católica de Chile; ChileFil: Guzman, Matías. Universidad de Santiago de Chile. Dto de Geología; ChileFil: Likerman, Jeremias. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Estudios Andinos "Don Pablo Groeber". Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Estudios Andinos "Don Pablo Groeber"; ArgentinaElsevier Science2026-05info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/285549Villarroel, Matías A.; Browning, John; Jara, Pamela P.; Harnett, Claire E.; Holohan, Eoghan P.; et al.; The role of compressional structures in the development of collapse calderas: Insights from analogue models; Elsevier Science; Journal of Volcanology and Geothermal Research; 473; 5-2026; 1-170377-0273CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://linkinghub.elsevier.com/retrieve/pii/S0377027326000557info:eu-repo/semantics/altIdentifier/doi/10.1016/j.jvolgeores.2026.108582info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2026-06-17T09:41:39Zoai:ri.conicet.gov.ar:11336/285549instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982026-06-17 09:41:39.667CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv The role of compressional structures in the development of collapse calderas: Insights from analogue models
title The role of compressional structures in the development of collapse calderas: Insights from analogue models
spellingShingle The role of compressional structures in the development of collapse calderas: Insights from analogue models
Villarroel, Matías A.
Collapse calderas
Fold-and-thrust belt
Inherited structure
Analogue models
title_short The role of compressional structures in the development of collapse calderas: Insights from analogue models
title_full The role of compressional structures in the development of collapse calderas: Insights from analogue models
title_fullStr The role of compressional structures in the development of collapse calderas: Insights from analogue models
title_full_unstemmed The role of compressional structures in the development of collapse calderas: Insights from analogue models
title_sort The role of compressional structures in the development of collapse calderas: Insights from analogue models
dc.creator.none.fl_str_mv Villarroel, Matías A.
Browning, John
Jara, Pamela P.
Harnett, Claire E.
Holohan, Eoghan P.
Marquardt, Carlos J.
Guzman, Matías
Likerman, Jeremias
author Villarroel, Matías A.
author_facet Villarroel, Matías A.
Browning, John
Jara, Pamela P.
Harnett, Claire E.
Holohan, Eoghan P.
Marquardt, Carlos J.
Guzman, Matías
Likerman, Jeremias
author_role author
author2 Browning, John
Jara, Pamela P.
Harnett, Claire E.
Holohan, Eoghan P.
Marquardt, Carlos J.
Guzman, Matías
Likerman, Jeremias
author2_role author
author
author
author
author
author
author
dc.subject.none.fl_str_mv Collapse calderas
Fold-and-thrust belt
Inherited structure
Analogue models
topic Collapse calderas
Fold-and-thrust belt
Inherited structure
Analogue models
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Caldera volcano systems in compressional tectonic settings exhibit complex deformation histories shaped by the interaction between magmatic and tectonic processes. This study presents a series of analogue experiments designed to investigate how tectonic shortening induced from regional compression, represented by a fold-and-thrust belt (FTB), interacts with caldera collapse structures. Two experimental scenarios were tested: (1) collapse followed by regional compression and (2) regional compression preceding collapse. Regional shortening after collapse yielded elliptical collapse structures with a thrust-parallel elongation of the caldera outline. The models further indicate that advancing thrusts can locally reactivate suitably orientated sections of collapse-related ring-faults at the thrust front. Conversely, collapse after regional shortening did not involve significant reactivation of pre-existing thrust faults, because their low dip angles render them sub-optimally orientated for reactivation. On the other hand, models show that a thrust-related thickening of the magma reservoir roof can inhibit ring-fault localisation and propagation and can potentially lead to a thrust-perpendicular elongation of the caldera outline. Comparisons with natural calderas in the Central Andes (e.g., Jorquera, Bellavista, Puquios and Diamante calderas) and in Japan (Akaigawa caldera) reveal similar aspect ratios and structural trends, supporting the wider relevance of the experimental findings for understanding interactions between caldera formation and regional tectonics.
Fil: Villarroel, Matías A.. Universidad de Dublin; Irlanda. Pontificia Universidad Católica de Chile; Chile
Fil: Browning, John. Pontificia Universidad Católica de Chile; Chile
Fil: Jara, Pamela P.. Universidad de Santiago de Chile; Chile
Fil: Harnett, Claire E.. Universidad de Dublin; Irlanda
Fil: Holohan, Eoghan P.. Universidad de Dublin; Irlanda
Fil: Marquardt, Carlos J.. Pontificia Universidad Católica de Chile; Chile
Fil: Guzman, Matías. Universidad de Santiago de Chile. Dto de Geología; Chile
Fil: Likerman, Jeremias. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Estudios Andinos "Don Pablo Groeber". Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Estudios Andinos "Don Pablo Groeber"; Argentina
description Caldera volcano systems in compressional tectonic settings exhibit complex deformation histories shaped by the interaction between magmatic and tectonic processes. This study presents a series of analogue experiments designed to investigate how tectonic shortening induced from regional compression, represented by a fold-and-thrust belt (FTB), interacts with caldera collapse structures. Two experimental scenarios were tested: (1) collapse followed by regional compression and (2) regional compression preceding collapse. Regional shortening after collapse yielded elliptical collapse structures with a thrust-parallel elongation of the caldera outline. The models further indicate that advancing thrusts can locally reactivate suitably orientated sections of collapse-related ring-faults at the thrust front. Conversely, collapse after regional shortening did not involve significant reactivation of pre-existing thrust faults, because their low dip angles render them sub-optimally orientated for reactivation. On the other hand, models show that a thrust-related thickening of the magma reservoir roof can inhibit ring-fault localisation and propagation and can potentially lead to a thrust-perpendicular elongation of the caldera outline. Comparisons with natural calderas in the Central Andes (e.g., Jorquera, Bellavista, Puquios and Diamante calderas) and in Japan (Akaigawa caldera) reveal similar aspect ratios and structural trends, supporting the wider relevance of the experimental findings for understanding interactions between caldera formation and regional tectonics.
publishDate 2026
dc.date.none.fl_str_mv 2026-05
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/285549
Villarroel, Matías A.; Browning, John; Jara, Pamela P.; Harnett, Claire E.; Holohan, Eoghan P.; et al.; The role of compressional structures in the development of collapse calderas: Insights from analogue models; Elsevier Science; Journal of Volcanology and Geothermal Research; 473; 5-2026; 1-17
0377-0273
CONICET Digital
CONICET
url http://hdl.handle.net/11336/285549
identifier_str_mv Villarroel, Matías A.; Browning, John; Jara, Pamela P.; Harnett, Claire E.; Holohan, Eoghan P.; et al.; The role of compressional structures in the development of collapse calderas: Insights from analogue models; Elsevier Science; Journal of Volcanology and Geothermal Research; 473; 5-2026; 1-17
0377-0273
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://linkinghub.elsevier.com/retrieve/pii/S0377027326000557
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.jvolgeores.2026.108582
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier Science
publisher.none.fl_str_mv Elsevier Science
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
_version_ 1868339034331283456
score 13.040872

Publicaciones similares