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Abstract:

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.

Registro:

Documento: Artículo
Título:Magmatic and tectonic evolution of the Oligocene Valle del cura basin, main Andes of Argentina and Chile: Evidence for generalized extension
Autor:Winocur, D.A.; Litvak, V.D.; Ramos, V.A.
Filiación:Laboratorio de Tectonica Andina, IDEAN, Instituto de Estudios Andinos Don Pablo Groeber (UBA-CONICET), Departamento de Ciencias Geológicas, FCEyN, Pabellón II, Ciudad Universitaria, Bs, As, Argentina
Palabras clave: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
Año:2015
Volumen:399
Número:1
Página de inicio:109
Página de fin:130
DOI: http://dx.doi.org/10.1144/SP399.2
Título revista:Geological Society Special Publication
Título revista abreviado:Geol. Soc. Spec. Publ.
ISSN:03058719
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03058719_v399_n1_p109_Winocur

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Citas:

---------- APA ----------
Winocur, D.A., Litvak, V.D. & Ramos, V.A. (2015) . Magmatic and tectonic evolution of the Oligocene Valle del cura basin, main Andes of Argentina and Chile: Evidence for generalized extension. Geological Society Special Publication, 399(1), 109-130.
http://dx.doi.org/10.1144/SP399.2
---------- CHICAGO ----------
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" . Geological Society Special Publication 399, no. 1 (2015) : 109-130.
http://dx.doi.org/10.1144/SP399.2
---------- MLA ----------
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" . Geological Society Special Publication, vol. 399, no. 1, 2015, pp. 109-130.
http://dx.doi.org/10.1144/SP399.2
---------- VANCOUVER ----------
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. Geol. Soc. Spec. Publ. 2015;399(1):109-130.
http://dx.doi.org/10.1144/SP399.2