Polyphase structural evolution of the southwestern Argentine Precordillera

Gosen, Werner von

doi:10.1016/0895-9811(95)00021-7

Cited by 43 publications

(52 citation statements)

References 20 publications

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“…The tectonic style of the western part of the Precordillera and the eastern flank of the Cordillera Frontal is strongly influenced by pre-Andean paleogeographic features and structures, indicating that the resulting structural styles were predetermined by conditions established in earlier tectonic events as was previously pointed out by von Gosen (1995).…”

Section: Regional Structuresmentioning

confidence: 57%

“…The prolonged history of convergence of oceanic crust against the Pacific edge of Gondwana resulted in several episodes of deformation during Paleozoic to Cenozoic times (Ramos, 1988;von Gosen, 1995;Cortés et al, 1997;Davis et al, 2000). Overprinting relationships between different structures in the Precordillera and Cordillera Frontal preserve evidence for at least four deformational events that occurred since the Early Paleozoic: (1) a Middle to Late Devonian collisional event;…”

Section: Regional Structuresmentioning

confidence: 99%

“…In the western part of the Precordillera, the lower Paleozoic metamorphic rocks are affected by N-S to NE-SW trending folds verging toward the west and northwest (von Gosen, 1995) and high-angle NNE-trending west-vergent faults ( Fig. 2; Cortés et al, 1997;Folguera et al, 2001;Folguera and Giambiagi, 2002).…”

Section: Regional Structuresmentioning

confidence: 99%

“…2; Cortés et al, 1997;Folguera et al, 2001;Folguera and Giambiagi, 2002). These structures developed during Middle to Late Devonian time (von Gosen, 1995;Davis et al, 2000) and are thought to be related to the collision between the Cuyania and Chilenia terranes (Ramos et al, 1986;Davis et al, 2000).…”

Section: Regional Structuresmentioning

confidence: 99%

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Permo-Triassic oblique extension in the Potrerillos-Uspallata area, western Argentina

Giambiagi

Martínez

2008

Journal of South American Earth Sciences

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Section: Regional Structuresmentioning

confidence: 57%

Section: Regional Structuresmentioning

confidence: 99%

Section: Regional Structuresmentioning

confidence: 99%

Section: Regional Structuresmentioning

confidence: 99%

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Permo-Triassic oblique extension in the Potrerillos-Uspallata area, western Argentina

Giambiagi

Martínez

2008

Journal of South American Earth Sciences

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“…The main structures are west-directed ductile thrusts (shear zones in Fig. 2) and folds with two related cleavages, developed under low grade metamorphic conditions (von Gosen, 1995), very similar to those described in the Frontal Cordillera. In the metasedimentary rocks the first cleavage (S1) is generally arranged parallel to stratification (S0) and is defined by preferred orientation of chlorite and sericite porphyroblasts.…”

Section: Andean Deformationmentioning

confidence: 55%

Reactivation of Paleozoic structures during Cenozoic deformation in the Cordón del Plata and Southern Precordillera ranges (Mendoza, Argentina)

Giambiagi¹,

Mescua²,

Heredia

et al. 2014

Journal of Iberian Geology

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The tectonic style of the eastern morphostructural units of the Central Andes between 32°20´ and 33°20´S is strongly influenced by preAndean structures, especially those developed during the late Carboniferous-Early Permian San Rafael orogeny of the Gondwanan orogenic cycle. Moreover, in the study area pre-Carboniferous rocks were deformed in Late Devonian-early Carboniferous times by the Chanic orogeny. In this paper we argue that the Cordón del Plata and the Southern Precordillera ranges, first order features of the eastern ranges of the Andes, have been shaped in large part by the Permian event. Our data suggest that the double verging character of the Andean Precordillera fold-thrust belt is mainly the result of the reactivation of Gondwanan structures which conform a fold-thrust belt with distinct characteristics north and south of 33°S. The northern sector of this belt corresponds to a bivergent system, while the southern sector had a widespread east vergence. The vergence of the Chanic structures is more difficult to determine, but we infer a westward vergence in the Frontal Cordillera and western sector of Precordillera, and an eastern vergence in the eastern sector of the Precordillera. The sharp disappearance of the Precordillera morphostructural unit south of 33°S is inferred here to be related to the distribution of inherited Permian structures.Keywords: Southern Central Andes, Permian fold-and-thrust belt, Andean thrust front, Chanic orogeny, Frontal Cordillera Resumen El estilo tectónico del sector oriental de las unidades morfoestructurales de los Andes Centrales entre los 32°20´y 33°20´S se encuentra fuertemente influenciado por estructuras pre-andinas, especialmente aquellas desarrolladas durante el Carbonífero superior-Pérmico Inferior y asociadas al orógeno San Rafael del ciclo orogénico Gondwánico. Además, en el área de estudio, las rocas pre-carboníferas se deformaron durante el Devónico Superior y Carbonífero inferior, en relación con la orogenia Chánica. En este trabajo discutimos los rasgos de primer orden del sector oriental de los Andes, que comprende al Cordón del Plata y a la Precordillera Austral, fueron en gran parte modelados a partir del evento pérmico. Nuestros datos sugieren que la doble vergencia de una faja plegada y corrida en la Precordillera Andina es el resultado principalmente de la reactivación de estructuras gondwánicas que conformaron una faja plegada y corrida con características distintivas al norte y sur de los 33°S. El sector norte de la faja corresponde a un sistema bivergente, mientras que el sector sur posee una vergencia predominantemente oriental. La vergencia de las estructuras chánicas es más difícil de predecir, pero se sugiere aquí una vergencia hacia el oeste para las estructuras de la Cordillera Frontal y el sector occidental de la Precordillera y otra hacia el este para las estructuras del sector oriental de la Precordillera. Se infiere que la marcada desaparición de la Precordillera como unidad morfoestructural andina al sur de los 33° está rel...

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The Role of Landslide Research in the Quaternary Evolution of the Central Andes (31°–34 °S)

Moreiras

Jeanneret

JunqueraTorrado

et al. 2021

Advances in Geomorphology and Quaternary Studies in Argentina

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Polyphase structural evolution of the southwestern Argentine Precordillera

Cited by 43 publications

References 20 publications

Permo-Triassic oblique extension in the Potrerillos-Uspallata area, western Argentina

Permo-Triassic oblique extension in the Potrerillos-Uspallata area, western Argentina

Reactivation of Paleozoic structures during Cenozoic deformation in the Cordón del Plata and Southern Precordillera ranges (Mendoza, Argentina)

The Role of Landslide Research in the Quaternary Evolution of the Central Andes (31°–34 °S)

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