A geodynamic model linking Cretaceous orogeny, arc migration, foreland dynamic subsidence and marine ingression in southern South America

Guido M. Gianni, Federico M. Dávila, Andrés Echaurren, Lucas Fennell, Jonathan Tobal, Cesar Navarrete, Paulo Quezada, Andrés Folguera, Mario Giménez

Resultado de la investigación: Review article

  • 2 Citas

Resumen

This study synthesizes the tectonomagmatic evolution of the Andes between 35°30′S to 48°S with the aim to spotlight early contractional phases on Andean orogenic building and to analyze their potential driving processes. We examine early tectonic stages of the different fold-thrust belts that compose this Andean segment. Additionally, we analyzed the spatio-temporal magmatic arc evolution as a proxy of dynamic changes in Andean subduction during critical tectonic stages of orogenic construction. This revision proposes a hypothesis related the existence of a continuous large-scale flat subduction setting in Cretaceous times with a similar size to the present-largest flat-slab setting on earth. This potential process would have initiated diachronically in the late Early Cretaceous and achieved full development in Late Cretaceous to earliest Paleocene times, constructing a series of fold-thrust belts on the retro-arc zone from 35°30′S to 48°S. Moreover, we assess major paleogeographic changes that took place during flat-slab full development in Maastrichtian-Danian times. At this moment, an enigmatic Atlantic-derived marine flooding covered the Patagonian foreland reaching as far as the Andean foothills. Based on flexural and dynamic topography analyses, we suggest that focused dynamic subsidence at the edge of the flat-slab may explain sudden marine ingression previously linked to continental tilting and orogenic loading during a high sea level global stage. Finally, flat-subduction destabilization could have triggered massive outpouring of synextensional intraplate volcanic rocks in southern South America and the arc retraction in late Paleogene to early Neogene times.

IdiomaEnglish
Páginas437-462
Número de páginas26
PublicaciónEarth-Science Reviews
Volumen185
DOI
EstadoPublished - 1 oct 2018
Publicado de forma externa

Huella dactilar

orogeny
geodynamics
subsidence
Cretaceous
slab
subduction
thrust
fold
tectonics
Danian
Maastrichtian
Paleogene
Paleocene
Neogene
volcanic rock
flooding
topography
sea level
South America

Keywords

    ASJC Scopus subject areas

    • Earth and Planetary Sciences(all)

    Citar esto

    Gianni, Guido M. ; Dávila, Federico M. ; Echaurren, Andrés ; Fennell, Lucas ; Tobal, Jonathan ; Navarrete, Cesar ; Quezada, Paulo ; Folguera, Andrés ; Giménez, Mario. / A geodynamic model linking Cretaceous orogeny, arc migration, foreland dynamic subsidence and marine ingression in southern South America. En: Earth-Science Reviews. 2018 ; Vol. 185. pp. 437-462.
    @article{97d83c0770af4a728f0d9c77b678ac41,
    title = "A geodynamic model linking Cretaceous orogeny, arc migration, foreland dynamic subsidence and marine ingression in southern South America",
    abstract = "This study synthesizes the tectonomagmatic evolution of the Andes between 35°30′S to 48°S with the aim to spotlight early contractional phases on Andean orogenic building and to analyze their potential driving processes. We examine early tectonic stages of the different fold-thrust belts that compose this Andean segment. Additionally, we analyzed the spatio-temporal magmatic arc evolution as a proxy of dynamic changes in Andean subduction during critical tectonic stages of orogenic construction. This revision proposes a hypothesis related the existence of a continuous large-scale flat subduction setting in Cretaceous times with a similar size to the present-largest flat-slab setting on earth. This potential process would have initiated diachronically in the late Early Cretaceous and achieved full development in Late Cretaceous to earliest Paleocene times, constructing a series of fold-thrust belts on the retro-arc zone from 35°30′S to 48°S. Moreover, we assess major paleogeographic changes that took place during flat-slab full development in Maastrichtian-Danian times. At this moment, an enigmatic Atlantic-derived marine flooding covered the Patagonian foreland reaching as far as the Andean foothills. Based on flexural and dynamic topography analyses, we suggest that focused dynamic subsidence at the edge of the flat-slab may explain sudden marine ingression previously linked to continental tilting and orogenic loading during a high sea level global stage. Finally, flat-subduction destabilization could have triggered massive outpouring of synextensional intraplate volcanic rocks in southern South America and the arc retraction in late Paleogene to early Neogene times.",
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    author = "Gianni, {Guido M.} and D{\'a}vila, {Federico M.} and Andr{\'e}s Echaurren and Lucas Fennell and Jonathan Tobal and Cesar Navarrete and Paulo Quezada and Andr{\'e}s Folguera and Mario Gim{\'e}nez",
    year = "2018",
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    doi = "10.1016/j.earscirev.2018.06.016",
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    Gianni, GM, Dávila, FM, Echaurren, A, Fennell, L, Tobal, J, Navarrete, C, Quezada, P, Folguera, A & Giménez, M 2018, 'A geodynamic model linking Cretaceous orogeny, arc migration, foreland dynamic subsidence and marine ingression in southern South America' Earth-Science Reviews, vol. 185, pp. 437-462. https://doi.org/10.1016/j.earscirev.2018.06.016

    A geodynamic model linking Cretaceous orogeny, arc migration, foreland dynamic subsidence and marine ingression in southern South America. / Gianni, Guido M.; Dávila, Federico M.; Echaurren, Andrés; Fennell, Lucas; Tobal, Jonathan; Navarrete, Cesar; Quezada, Paulo; Folguera, Andrés; Giménez, Mario.

    En: Earth-Science Reviews, Vol. 185, 01.10.2018, p. 437-462.

    Resultado de la investigación: Review article

    TY - JOUR

    T1 - A geodynamic model linking Cretaceous orogeny, arc migration, foreland dynamic subsidence and marine ingression in southern South America

    AU - Gianni, Guido M.

    AU - Dávila, Federico M.

    AU - Echaurren, Andrés

    AU - Fennell, Lucas

    AU - Tobal, Jonathan

    AU - Navarrete, Cesar

    AU - Quezada, Paulo

    AU - Folguera, Andrés

    AU - Giménez, Mario

    PY - 2018/10/1

    Y1 - 2018/10/1

    N2 - This study synthesizes the tectonomagmatic evolution of the Andes between 35°30′S to 48°S with the aim to spotlight early contractional phases on Andean orogenic building and to analyze their potential driving processes. We examine early tectonic stages of the different fold-thrust belts that compose this Andean segment. Additionally, we analyzed the spatio-temporal magmatic arc evolution as a proxy of dynamic changes in Andean subduction during critical tectonic stages of orogenic construction. This revision proposes a hypothesis related the existence of a continuous large-scale flat subduction setting in Cretaceous times with a similar size to the present-largest flat-slab setting on earth. This potential process would have initiated diachronically in the late Early Cretaceous and achieved full development in Late Cretaceous to earliest Paleocene times, constructing a series of fold-thrust belts on the retro-arc zone from 35°30′S to 48°S. Moreover, we assess major paleogeographic changes that took place during flat-slab full development in Maastrichtian-Danian times. At this moment, an enigmatic Atlantic-derived marine flooding covered the Patagonian foreland reaching as far as the Andean foothills. Based on flexural and dynamic topography analyses, we suggest that focused dynamic subsidence at the edge of the flat-slab may explain sudden marine ingression previously linked to continental tilting and orogenic loading during a high sea level global stage. Finally, flat-subduction destabilization could have triggered massive outpouring of synextensional intraplate volcanic rocks in southern South America and the arc retraction in late Paleogene to early Neogene times.

    AB - This study synthesizes the tectonomagmatic evolution of the Andes between 35°30′S to 48°S with the aim to spotlight early contractional phases on Andean orogenic building and to analyze their potential driving processes. We examine early tectonic stages of the different fold-thrust belts that compose this Andean segment. Additionally, we analyzed the spatio-temporal magmatic arc evolution as a proxy of dynamic changes in Andean subduction during critical tectonic stages of orogenic construction. This revision proposes a hypothesis related the existence of a continuous large-scale flat subduction setting in Cretaceous times with a similar size to the present-largest flat-slab setting on earth. This potential process would have initiated diachronically in the late Early Cretaceous and achieved full development in Late Cretaceous to earliest Paleocene times, constructing a series of fold-thrust belts on the retro-arc zone from 35°30′S to 48°S. Moreover, we assess major paleogeographic changes that took place during flat-slab full development in Maastrichtian-Danian times. At this moment, an enigmatic Atlantic-derived marine flooding covered the Patagonian foreland reaching as far as the Andean foothills. Based on flexural and dynamic topography analyses, we suggest that focused dynamic subsidence at the edge of the flat-slab may explain sudden marine ingression previously linked to continental tilting and orogenic loading during a high sea level global stage. Finally, flat-subduction destabilization could have triggered massive outpouring of synextensional intraplate volcanic rocks in southern South America and the arc retraction in late Paleogene to early Neogene times.

    KW - Andes

    KW - Broken foreland

    KW - Dynamic subsidence

    KW - Flat-slab

    KW - Marine transgression

    UR - http://www.scopus.com/inward/record.url?scp=85049335215&partnerID=8YFLogxK

    U2 - 10.1016/j.earscirev.2018.06.016

    DO - 10.1016/j.earscirev.2018.06.016

    M3 - Review article

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    SP - 437

    EP - 462

    JO - Earth-Science Reviews

    T2 - Earth-Science Reviews

    JF - Earth-Science Reviews

    SN - 0012-8252

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