The neotectonics of the volcanic arc at the latitude of Copahue volcano (38°S), Andes of Neuquén

The Chancho-Co hill is the main positive feature in the caldera del Agrio domain with the only exception of the Copahue volcano. Its development is lin- ked to a series of NE-trending thrusts with a general vergence to the SE, which affects Late Pliocene successions gathered in Las Mellizas Formatio...

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Autores principales:	Rojas Vera, Emilio A., Folguera, Andrés, Spagnuolo, Mauro G., Ramos, Victor Alberto
Publicado:	2009
Materias:	Copahue volcano Cura Mallín basin Neotectonics Neuquen caldera fault geometry fluvial deposit gravimetry island arc neotectonics Paleogene Pliocene reverse fault tectonic structure thrust fault uplift volcano Andes Argentina Copahue Southern Volcanic Zone Cura
Acceso en línea:	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00044822_v65_n1_p204_RojasVera http://hdl.handle.net/20.500.12110/paper_00044822_v65_n1_p204_RojasVera
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

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spelling	paper:paper_00044822_v65_n1_p204_RojasVera2023-06-08T14:26:16Z The neotectonics of the volcanic arc at the latitude of Copahue volcano (38°S), Andes of Neuquén Rojas Vera, Emilio A. Folguera, Andrés Spagnuolo, Mauro G. Ramos, Victor Alberto Copahue volcano Cura Mallín basin Neotectonics Neuquen caldera fault geometry fluvial deposit gravimetry island arc neotectonics Paleogene Pliocene reverse fault tectonic structure thrust fault uplift volcano Andes Argentina Copahue Neuquen Southern Volcanic Zone Cura The Chancho-Co hill is the main positive feature in the caldera del Agrio domain with the only exception of the Copahue volcano. Its development is lin- ked to a series of NE-trending thrusts with a general vergence to the SE, which affects Late Pliocene successions gathered in Las Mellizas Formation. The main topographic break in this fan of reverse faults coincides with the Copahue Fault. This structure uplifted Late Pliocene sequences over younger unconsolidated fluvial and coluvial deposits. The detailed study of these sequences allowed identifying at least two periods of activity for the Copahue Fault. This fault, as well as the other neigh- bor thrusts, cuts the Copahue lavas to the south showing the precise geometry of the Chanchó-Co uplift. Finally, the inver- sion of Paleogene depocenters at depth determined from gravimetric studies is proposed to explain the deeper geometry of the neotectonic structures in the area. Fil:Rojas Vera, E. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Folguera, A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Spagnuolo, M. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Ramos, V.A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2009 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00044822_v65_n1_p204_RojasVera http://hdl.handle.net/20.500.12110/paper_00044822_v65_n1_p204_RojasVera
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	Copahue volcano Cura Mallín basin Neotectonics Neuquen caldera fault geometry fluvial deposit gravimetry island arc neotectonics Paleogene Pliocene reverse fault tectonic structure thrust fault uplift volcano Andes Argentina Copahue Neuquen Southern Volcanic Zone Cura
spellingShingle	Copahue volcano Cura Mallín basin Neotectonics Neuquen caldera fault geometry fluvial deposit gravimetry island arc neotectonics Paleogene Pliocene reverse fault tectonic structure thrust fault uplift volcano Andes Argentina Copahue Neuquen Southern Volcanic Zone Cura Rojas Vera, Emilio A. Folguera, Andrés Spagnuolo, Mauro G. Ramos, Victor Alberto The neotectonics of the volcanic arc at the latitude of Copahue volcano (38°S), Andes of Neuquén
topic_facet	Copahue volcano Cura Mallín basin Neotectonics Neuquen caldera fault geometry fluvial deposit gravimetry island arc neotectonics Paleogene Pliocene reverse fault tectonic structure thrust fault uplift volcano Andes Argentina Copahue Neuquen Southern Volcanic Zone Cura
description	The Chancho-Co hill is the main positive feature in the caldera del Agrio domain with the only exception of the Copahue volcano. Its development is lin- ked to a series of NE-trending thrusts with a general vergence to the SE, which affects Late Pliocene successions gathered in Las Mellizas Formation. The main topographic break in this fan of reverse faults coincides with the Copahue Fault. This structure uplifted Late Pliocene sequences over younger unconsolidated fluvial and coluvial deposits. The detailed study of these sequences allowed identifying at least two periods of activity for the Copahue Fault. This fault, as well as the other neigh- bor thrusts, cuts the Copahue lavas to the south showing the precise geometry of the Chanchó-Co uplift. Finally, the inver- sion of Paleogene depocenters at depth determined from gravimetric studies is proposed to explain the deeper geometry of the neotectonic structures in the area.
author	Rojas Vera, Emilio A. Folguera, Andrés Spagnuolo, Mauro G. Ramos, Victor Alberto
author_facet	Rojas Vera, Emilio A. Folguera, Andrés Spagnuolo, Mauro G. Ramos, Victor Alberto
author_sort	Rojas Vera, Emilio A.
title	The neotectonics of the volcanic arc at the latitude of Copahue volcano (38°S), Andes of Neuquén
title_short	The neotectonics of the volcanic arc at the latitude of Copahue volcano (38°S), Andes of Neuquén
title_full	The neotectonics of the volcanic arc at the latitude of Copahue volcano (38°S), Andes of Neuquén
title_fullStr	The neotectonics of the volcanic arc at the latitude of Copahue volcano (38°S), Andes of Neuquén
title_full_unstemmed	The neotectonics of the volcanic arc at the latitude of Copahue volcano (38°S), Andes of Neuquén
title_sort	neotectonics of the volcanic arc at the latitude of copahue volcano (38°s), andes of neuquén
publishDate	2009
url	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00044822_v65_n1_p204_RojasVera http://hdl.handle.net/20.500.12110/paper_00044822_v65_n1_p204_RojasVera
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The neotectonics of the volcanic arc at the latitude of Copahue volcano (38°S), Andes of Neuquén

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