Controls of the Lithospheric Thermal Field of an OceanContinent Subduction Zone: The Southern Central Andes
- Autores
- Rodriguez Piceda, Constanza; Scheck Wenderoth, Magdalena; Bott, Judith; Gómez Dacal, María Laura; Cacace, M.; Pons, Michaël; Prezzi, Claudia Beatriz; Strecker, Manfred
- Año de publicación
- 2022
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- In an ocean-continent subduction zone, the assessment of the lithospheric thermal state is essential to determine the controls of the deformation within the upper plate and the dip angle of the subducting lithosphere. In this study, we evaluate the degree of influence of both the configuration of the upper plate (i.e., thickness and composition of the rock units) and variations of the subduction angle on the lithospheric thermal field of the southern Central Andes (29°–39°S). Here, the subduction angle increases from subhorizontal (5°) north of 33°S to steep (~30°) in the south. We derived the 3D temperature and heat flow distribution of the lithosphere in the southern Central Andes considering conversion of S wave tomography to temperatures together with steady-state conductive thermal modeling. We found that the orogen is overall warmer than the forearc and the foreland and that the lithosphere of the northern part of the foreland appears colder than its southern counterpart. Sedimentary blanketing and the thickness of the radiogenic crust exert the main control on the shallow thermal field (<50 km depth). Specific conditions are present where the oceanic slab is relatively shallow (<85 km depth) and the radiogenic crust is thin. This configuration results in relatively colder temperatures compared to regions where the radiogenic crust is thick and the slab is steep. At depths >50 km, the temperatures of the overriding plate are mainly controlled by the mantle heat input and the subduction angle. The thermal field of the upper plate likely preserves the flat subduction angle and influences the spatial distribution of shortening.
Fil: Rodriguez Piceda, Constanza. German Research Centre for Geosciences; Alemania
Fil: Scheck Wenderoth, Magdalena. German Research Centre for Geosciences; Alemania
Fil: Bott, Judith. German Research Centre for Geosciences; Alemania
Fil: Gómez Dacal, María Laura. German Research Centre for Geosciences; Alemania. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Cacace, M.. German Research Centre for Geosciences; Alemania
Fil: Pons, Michaël. German Research Centre for Geosciences; Alemania
Fil: Prezzi, Claudia Beatriz. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Geociencias Básicas, Aplicadas y Ambientales de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Geociencias Básicas, Aplicadas y Ambientales de Buenos Aires; Argentina
Fil: Strecker, Manfred. German Research Centre for Geosciences; Alemania - Materia
-
Southern Central Andes
Lithosphere
thermal field - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
- Repositorio
.jpg)
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/203494
Ver los metadatos del registro completo
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Controls of the Lithospheric Thermal Field of an OceanContinent Subduction Zone: The Southern Central AndesRodriguez Piceda, ConstanzaScheck Wenderoth, MagdalenaBott, JudithGómez Dacal, María LauraCacace, M.Pons, MichaëlPrezzi, Claudia BeatrizStrecker, ManfredSouthern Central AndesLithospherethermal fieldhttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1In an ocean-continent subduction zone, the assessment of the lithospheric thermal state is essential to determine the controls of the deformation within the upper plate and the dip angle of the subducting lithosphere. In this study, we evaluate the degree of influence of both the configuration of the upper plate (i.e., thickness and composition of the rock units) and variations of the subduction angle on the lithospheric thermal field of the southern Central Andes (29°–39°S). Here, the subduction angle increases from subhorizontal (5°) north of 33°S to steep (~30°) in the south. We derived the 3D temperature and heat flow distribution of the lithosphere in the southern Central Andes considering conversion of S wave tomography to temperatures together with steady-state conductive thermal modeling. We found that the orogen is overall warmer than the forearc and the foreland and that the lithosphere of the northern part of the foreland appears colder than its southern counterpart. Sedimentary blanketing and the thickness of the radiogenic crust exert the main control on the shallow thermal field (<50 km depth). Specific conditions are present where the oceanic slab is relatively shallow (<85 km depth) and the radiogenic crust is thin. This configuration results in relatively colder temperatures compared to regions where the radiogenic crust is thick and the slab is steep. At depths >50 km, the temperatures of the overriding plate are mainly controlled by the mantle heat input and the subduction angle. The thermal field of the upper plate likely preserves the flat subduction angle and influences the spatial distribution of shortening.Fil: Rodriguez Piceda, Constanza. German Research Centre for Geosciences; AlemaniaFil: Scheck Wenderoth, Magdalena. German Research Centre for Geosciences; AlemaniaFil: Bott, Judith. German Research Centre for Geosciences; AlemaniaFil: Gómez Dacal, María Laura. German Research Centre for Geosciences; Alemania. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Cacace, M.. German Research Centre for Geosciences; AlemaniaFil: Pons, Michaël. German Research Centre for Geosciences; AlemaniaFil: Prezzi, Claudia Beatriz. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Geociencias Básicas, Aplicadas y Ambientales de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Geociencias Básicas, Aplicadas y Ambientales de Buenos Aires; ArgentinaFil: Strecker, Manfred. German Research Centre for Geosciences; AlemaniaGeoScienceWorld2022-05-13info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/203494Rodriguez Piceda, Constanza; Scheck Wenderoth, Magdalena; Bott, Judith; Gómez Dacal, María Laura; Cacace, M.; et al.; Controls of the Lithospheric Thermal Field of an OceanContinent Subduction Zone: The Southern Central Andes; GeoScienceWorld; Lithosphere; 2022; 1; 13-5-2022; 1-261941-82641947-4253CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://pubs.geoscienceworld.org/gsa/lithosphere/article/2022/1/2237272/613514/Controls-of-the-Lithospheric-Thermal-Field-of-aninfo:eu-repo/semantics/altIdentifier/doi/10.2113/2022/2237272info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-22T11:01:21Zoai:ri.conicet.gov.ar:11336/203494instacron: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:34982025-10-22 11:01:21.745CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
| dc.title.none.fl_str_mv |
Controls of the Lithospheric Thermal Field of an OceanContinent Subduction Zone: The Southern Central Andes |
| title |
Controls of the Lithospheric Thermal Field of an OceanContinent Subduction Zone: The Southern Central Andes |
| spellingShingle |
Controls of the Lithospheric Thermal Field of an OceanContinent Subduction Zone: The Southern Central Andes Rodriguez Piceda, Constanza Southern Central Andes Lithosphere thermal field |
| title_short |
Controls of the Lithospheric Thermal Field of an OceanContinent Subduction Zone: The Southern Central Andes |
| title_full |
Controls of the Lithospheric Thermal Field of an OceanContinent Subduction Zone: The Southern Central Andes |
| title_fullStr |
Controls of the Lithospheric Thermal Field of an OceanContinent Subduction Zone: The Southern Central Andes |
| title_full_unstemmed |
Controls of the Lithospheric Thermal Field of an OceanContinent Subduction Zone: The Southern Central Andes |
| title_sort |
Controls of the Lithospheric Thermal Field of an OceanContinent Subduction Zone: The Southern Central Andes |
| dc.creator.none.fl_str_mv |
Rodriguez Piceda, Constanza Scheck Wenderoth, Magdalena Bott, Judith Gómez Dacal, María Laura Cacace, M. Pons, Michaël Prezzi, Claudia Beatriz Strecker, Manfred |
| author |
Rodriguez Piceda, Constanza |
| author_facet |
Rodriguez Piceda, Constanza Scheck Wenderoth, Magdalena Bott, Judith Gómez Dacal, María Laura Cacace, M. Pons, Michaël Prezzi, Claudia Beatriz Strecker, Manfred |
| author_role |
author |
| author2 |
Scheck Wenderoth, Magdalena Bott, Judith Gómez Dacal, María Laura Cacace, M. Pons, Michaël Prezzi, Claudia Beatriz Strecker, Manfred |
| author2_role |
author author author author author author author |
| dc.subject.none.fl_str_mv |
Southern Central Andes Lithosphere thermal field |
| topic |
Southern Central Andes Lithosphere thermal field |
| purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 |
| dc.description.none.fl_txt_mv |
In an ocean-continent subduction zone, the assessment of the lithospheric thermal state is essential to determine the controls of the deformation within the upper plate and the dip angle of the subducting lithosphere. In this study, we evaluate the degree of influence of both the configuration of the upper plate (i.e., thickness and composition of the rock units) and variations of the subduction angle on the lithospheric thermal field of the southern Central Andes (29°–39°S). Here, the subduction angle increases from subhorizontal (5°) north of 33°S to steep (~30°) in the south. We derived the 3D temperature and heat flow distribution of the lithosphere in the southern Central Andes considering conversion of S wave tomography to temperatures together with steady-state conductive thermal modeling. We found that the orogen is overall warmer than the forearc and the foreland and that the lithosphere of the northern part of the foreland appears colder than its southern counterpart. Sedimentary blanketing and the thickness of the radiogenic crust exert the main control on the shallow thermal field (<50 km depth). Specific conditions are present where the oceanic slab is relatively shallow (<85 km depth) and the radiogenic crust is thin. This configuration results in relatively colder temperatures compared to regions where the radiogenic crust is thick and the slab is steep. At depths >50 km, the temperatures of the overriding plate are mainly controlled by the mantle heat input and the subduction angle. The thermal field of the upper plate likely preserves the flat subduction angle and influences the spatial distribution of shortening. Fil: Rodriguez Piceda, Constanza. German Research Centre for Geosciences; Alemania Fil: Scheck Wenderoth, Magdalena. German Research Centre for Geosciences; Alemania Fil: Bott, Judith. German Research Centre for Geosciences; Alemania Fil: Gómez Dacal, María Laura. German Research Centre for Geosciences; Alemania. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Cacace, M.. German Research Centre for Geosciences; Alemania Fil: Pons, Michaël. German Research Centre for Geosciences; Alemania Fil: Prezzi, Claudia Beatriz. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Geociencias Básicas, Aplicadas y Ambientales de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Geociencias Básicas, Aplicadas y Ambientales de Buenos Aires; Argentina Fil: Strecker, Manfred. German Research Centre for Geosciences; Alemania |
| description |
In an ocean-continent subduction zone, the assessment of the lithospheric thermal state is essential to determine the controls of the deformation within the upper plate and the dip angle of the subducting lithosphere. In this study, we evaluate the degree of influence of both the configuration of the upper plate (i.e., thickness and composition of the rock units) and variations of the subduction angle on the lithospheric thermal field of the southern Central Andes (29°–39°S). Here, the subduction angle increases from subhorizontal (5°) north of 33°S to steep (~30°) in the south. We derived the 3D temperature and heat flow distribution of the lithosphere in the southern Central Andes considering conversion of S wave tomography to temperatures together with steady-state conductive thermal modeling. We found that the orogen is overall warmer than the forearc and the foreland and that the lithosphere of the northern part of the foreland appears colder than its southern counterpart. Sedimentary blanketing and the thickness of the radiogenic crust exert the main control on the shallow thermal field (<50 km depth). Specific conditions are present where the oceanic slab is relatively shallow (<85 km depth) and the radiogenic crust is thin. This configuration results in relatively colder temperatures compared to regions where the radiogenic crust is thick and the slab is steep. At depths >50 km, the temperatures of the overriding plate are mainly controlled by the mantle heat input and the subduction angle. The thermal field of the upper plate likely preserves the flat subduction angle and influences the spatial distribution of shortening. |
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2022 |
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2022-05-13 |
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info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://purl.org/coar/resource_type/c_6501 info:ar-repo/semantics/articulo |
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article |
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publishedVersion |
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http://hdl.handle.net/11336/203494 Rodriguez Piceda, Constanza; Scheck Wenderoth, Magdalena; Bott, Judith; Gómez Dacal, María Laura; Cacace, M.; et al.; Controls of the Lithospheric Thermal Field of an OceanContinent Subduction Zone: The Southern Central Andes; GeoScienceWorld; Lithosphere; 2022; 1; 13-5-2022; 1-26 1941-8264 1947-4253 CONICET Digital CONICET |
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http://hdl.handle.net/11336/203494 |
| identifier_str_mv |
Rodriguez Piceda, Constanza; Scheck Wenderoth, Magdalena; Bott, Judith; Gómez Dacal, María Laura; Cacace, M.; et al.; Controls of the Lithospheric Thermal Field of an OceanContinent Subduction Zone: The Southern Central Andes; GeoScienceWorld; Lithosphere; 2022; 1; 13-5-2022; 1-26 1941-8264 1947-4253 CONICET Digital CONICET |
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eng |
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eng |
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