Magmatic and tectonic evolution of the Oligocene Valle del cura basin, main Andes of Argentina and Chile: Evidence for generalized extension

The magmatic history and tectonic evolution of the Valle del Cura region has received the attention of several studies in recent years, particularly as part of a larger area of interest named the Indio Belt. These studies have suggested an Eocene volcanic sequence known as the Valle del Cura Formati...

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Autores principales:	Winocur, D.A., Litvak, V.D., Ramos, V.A.
Formato:	SER
Materias:	basin evolution extensional tectonics geochronology island arc magmatism Oligocene structural control tectonic evolution tectonic setting Andes Argentina Chile San Juan [Argentina] Valle del Cura Cura
Acceso en línea:	http://hdl.handle.net/20.500.12110/paper_03058719_v399_n1_p109_Winocur
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	todo:paper_03058719_v399_n1_p109_Winocur
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spelling	todo:paper_03058719_v399_n1_p109_Winocur2023-10-03T15:22:03Z Magmatic and tectonic evolution of the Oligocene Valle del cura basin, main Andes of Argentina and Chile: Evidence for generalized extension Winocur, D.A. Litvak, V.D. Ramos, V.A. basin evolution extensional tectonics geochronology island arc magmatism Oligocene structural control tectonic evolution tectonic setting Andes Argentina Chile San Juan [Argentina] Valle del Cura Cura Cura The magmatic history and tectonic evolution of the Valle del Cura region has received the attention of several studies in recent years, particularly as part of a larger area of interest named the Indio Belt. These studies have suggested an Eocene volcanic sequence known as the Valle del Cura Formation. The present study, based on extensive field work, robust geochronological and geochemical datasets, shows an Oligocene to early Miocene age for this unit, similar to the Doña Ana Group. The tectonic setting that controlled the volcanism of the Valle del Cura Formation was extensional and corresponds to a retro-arc position of the main arc volcanism of the Doña Ana Group. The field evidence combined with radiometric and geochemical data demonstrate the synextensional characteristic of the volcanic sequence of the Valle del Cura Formation and the Doña Ana Group at these latitudes. This characteristic was dominant at the central part of the Pampean Flat Slab (29°-30°S). © 2015 The Geological Society of London. Fil:Winocur, D.A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Litvak, V.D. 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. SER info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_03058719_v399_n1_p109_Winocur
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	basin evolution extensional tectonics geochronology island arc magmatism Oligocene structural control tectonic evolution tectonic setting Andes Argentina Chile San Juan [Argentina] Valle del Cura Cura Cura
spellingShingle	basin evolution extensional tectonics geochronology island arc magmatism Oligocene structural control tectonic evolution tectonic setting Andes Argentina Chile San Juan [Argentina] Valle del Cura Cura Cura Winocur, D.A. Litvak, V.D. Ramos, V.A. Magmatic and tectonic evolution of the Oligocene Valle del cura basin, main Andes of Argentina and Chile: Evidence for generalized extension
topic_facet	basin evolution extensional tectonics geochronology island arc magmatism Oligocene structural control tectonic evolution tectonic setting Andes Argentina Chile San Juan [Argentina] Valle del Cura Cura Cura
description	The magmatic history and tectonic evolution of the Valle del Cura region has received the attention of several studies in recent years, particularly as part of a larger area of interest named the Indio Belt. These studies have suggested an Eocene volcanic sequence known as the Valle del Cura Formation. The present study, based on extensive field work, robust geochronological and geochemical datasets, shows an Oligocene to early Miocene age for this unit, similar to the Doña Ana Group. The tectonic setting that controlled the volcanism of the Valle del Cura Formation was extensional and corresponds to a retro-arc position of the main arc volcanism of the Doña Ana Group. The field evidence combined with radiometric and geochemical data demonstrate the synextensional characteristic of the volcanic sequence of the Valle del Cura Formation and the Doña Ana Group at these latitudes. This characteristic was dominant at the central part of the Pampean Flat Slab (29°-30°S). © 2015 The Geological Society of London.
format	SER
author	Winocur, D.A. Litvak, V.D. Ramos, V.A.
author_facet	Winocur, D.A. Litvak, V.D. Ramos, V.A.
author_sort	Winocur, D.A.
title	Magmatic and tectonic evolution of the Oligocene Valle del cura basin, main Andes of Argentina and Chile: Evidence for generalized extension
title_short	Magmatic and tectonic evolution of the Oligocene Valle del cura basin, main Andes of Argentina and Chile: Evidence for generalized extension
title_full	Magmatic and tectonic evolution of the Oligocene Valle del cura basin, main Andes of Argentina and Chile: Evidence for generalized extension
title_fullStr	Magmatic and tectonic evolution of the Oligocene Valle del cura basin, main Andes of Argentina and Chile: Evidence for generalized extension
title_full_unstemmed	Magmatic and tectonic evolution of the Oligocene Valle del cura basin, main Andes of Argentina and Chile: Evidence for generalized extension
title_sort	magmatic and tectonic evolution of the oligocene valle del cura basin, main andes of argentina and chile: evidence for generalized extension
url	http://hdl.handle.net/20.500.12110/paper_03058719_v399_n1_p109_Winocur
work_keys_str_mv	AT winocurda magmaticandtectonicevolutionoftheoligocenevalledelcurabasinmainandesofargentinaandchileevidenceforgeneralizedextension AT litvakvd magmaticandtectonicevolutionoftheoligocenevalledelcurabasinmainandesofargentinaandchileevidenceforgeneralizedextension AT ramosva magmaticandtectonicevolutionoftheoligocenevalledelcurabasinmainandesofargentinaandchileevidenceforgeneralizedextension
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Magmatic and tectonic evolution of the Oligocene Valle del cura basin, main Andes of Argentina and Chile: Evidence for generalized extension

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