K-Ar Age of Agua de la Piedra Volcanic Complex at Puesto Suárez, Río Negro

The Agua de la Piedra Volcanic Complex (APVC) has been defined as an integral part of the Quiñelaf Superunit, which includes younger bimodal sequences than the so-called basaltic plateau of Somún Curá. The plateau and post-plateau effusions correspond to the major episodes of the Somún Curá Magmatic...

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Autores principales: Remesal, M.B., Salani, F.M.
Formato: JOUR
Materias:
Extrandean Patagonia
Geochronology
Somún Curá
Volcanism
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_15145158_v20_n1_p35_Remesal
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_15145158_v20_n1_p35_Remesal
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spelling todo:paper_15145158_v20_n1_p35_Remesal2023-10-03T16:19:47Z K-Ar Age of Agua de la Piedra Volcanic Complex at Puesto Suárez, Río Negro Remesal, M.B. Salani, F.M. Extrandean Patagonia Geochronology Somún Curá Volcanism The Agua de la Piedra Volcanic Complex (APVC) has been defined as an integral part of the Quiñelaf Superunit, which includes younger bimodal sequences than the so-called basaltic plateau of Somún Curá. The plateau and post-plateau effusions correspond to the major episodes of the Somún Curá Magmatic Province of (SCMP). The APVC emerges in the western periphery of the plateau and is composed of an association of lavas and pyroclastites from basaltic to trachytic. The core of the range on which the sequence crops out is mainly mesosilicic and the basic flows of radially disposed. At the eastern end of the trachyte site a dome-shaped body with at least two trachytic varieties is recognized. The K-Ar age of the grainy variety allows corroborating the presence of more than one effusive event within the Quiñelaf Superunit and establishing some criteria to discuss its relationship with the basaltic plateau. © 2018 Museo Argentino de Ciencias Naturales Bernardino Rivadavia. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_15145158_v20_n1_p35_Remesal
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Extrandean Patagonia
Geochronology
Somún Curá
Volcanism
spellingShingle Extrandean Patagonia
Geochronology
Somún Curá
Volcanism
Remesal, M.B.
Salani, F.M.
K-Ar Age of Agua de la Piedra Volcanic Complex at Puesto Suárez, Río Negro
topic_facet Extrandean Patagonia
Geochronology
Somún Curá
Volcanism
description The Agua de la Piedra Volcanic Complex (APVC) has been defined as an integral part of the Quiñelaf Superunit, which includes younger bimodal sequences than the so-called basaltic plateau of Somún Curá. The plateau and post-plateau effusions correspond to the major episodes of the Somún Curá Magmatic Province of (SCMP). The APVC emerges in the western periphery of the plateau and is composed of an association of lavas and pyroclastites from basaltic to trachytic. The core of the range on which the sequence crops out is mainly mesosilicic and the basic flows of radially disposed. At the eastern end of the trachyte site a dome-shaped body with at least two trachytic varieties is recognized. The K-Ar age of the grainy variety allows corroborating the presence of more than one effusive event within the Quiñelaf Superunit and establishing some criteria to discuss its relationship with the basaltic plateau. © 2018 Museo Argentino de Ciencias Naturales Bernardino Rivadavia.
format JOUR
author Remesal, M.B.
Salani, F.M.
author_facet Remesal, M.B.
Salani, F.M.
author_sort Remesal, M.B.
title K-Ar Age of Agua de la Piedra Volcanic Complex at Puesto Suárez, Río Negro
title_short K-Ar Age of Agua de la Piedra Volcanic Complex at Puesto Suárez, Río Negro
title_full K-Ar Age of Agua de la Piedra Volcanic Complex at Puesto Suárez, Río Negro
title_fullStr K-Ar Age of Agua de la Piedra Volcanic Complex at Puesto Suárez, Río Negro
title_full_unstemmed K-Ar Age of Agua de la Piedra Volcanic Complex at Puesto Suárez, Río Negro
title_sort k-ar age of agua de la piedra volcanic complex at puesto suárez, río negro
url http://hdl.handle.net/20.500.12110/paper_15145158_v20_n1_p35_Remesal
work_keys_str_mv AT remesalmb karageofaguadelapiedravolcaniccomplexatpuestosuarezrionegro
AT salanifm karageofaguadelapiedravolcaniccomplexatpuestosuarezrionegro
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