K/Ar ages from east Nahuel Pan hills, Chubut. Implicance in the Divisadero and Choiyoi Groups correlation

A sequence of dacitic/andesitic flows and pyroclastic rocks, in discordance above basandesitic volcanic series at eastern Nahuel Pan hills, has been dated by K/Ar method. Samples of the flows and basandesitic volcanic rocks yield ages of 105 ± 5 Ma and 252 ± 10 Ma. These ages assign to the lavic-pyr...

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Detalles Bibliográficos
Autores principales:	Vattuone, M.E., Latorre, C.O.
Formato:	JOUR
Materias:	Chubut Cretaceous/Permotriassic volcanic rocks K/Ar ages Nahuel Pan Cretaceous lava flow potassium-argon dating Triassic Argentina South America Western Hemisphere World
Acceso en línea:	http://hdl.handle.net/20.500.12110/paper_00044822_v59_n3_p510_Vattuone
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

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spelling	todo:paper_00044822_v59_n3_p510_Vattuone2023-10-03T13:57:58Z K/Ar ages from east Nahuel Pan hills, Chubut. Implicance in the Divisadero and Choiyoi Groups correlation Vattuone, M.E. Latorre, C.O. Chubut Cretaceous/Permotriassic volcanic rocks K/Ar ages Nahuel Pan Cretaceous lava flow potassium-argon dating Triassic Argentina Chubut South America Western Hemisphere World A sequence of dacitic/andesitic flows and pyroclastic rocks, in discordance above basandesitic volcanic series at eastern Nahuel Pan hills, has been dated by K/Ar method. Samples of the flows and basandesitic volcanic rocks yield ages of 105 ± 5 Ma and 252 ± 10 Ma. These ages assign to the lavic-pyroclastic sequence a Cretaceous age (at the lower part of upper member of Divisadero Group) and to the basandesitic volcanic rocks a Permotriassic age (in line with Choiyoi Group). This is the first occurrence, of the Choiyoi Group, in the eastern slope of the Andes at this latitude. © 2004 Asociación Geológica Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_00044822_v59_n3_p510_Vattuone
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	Chubut Cretaceous/Permotriassic volcanic rocks K/Ar ages Nahuel Pan Cretaceous lava flow potassium-argon dating Triassic Argentina Chubut South America Western Hemisphere World
spellingShingle	Chubut Cretaceous/Permotriassic volcanic rocks K/Ar ages Nahuel Pan Cretaceous lava flow potassium-argon dating Triassic Argentina Chubut South America Western Hemisphere World Vattuone, M.E. Latorre, C.O. K/Ar ages from east Nahuel Pan hills, Chubut. Implicance in the Divisadero and Choiyoi Groups correlation
topic_facet	Chubut Cretaceous/Permotriassic volcanic rocks K/Ar ages Nahuel Pan Cretaceous lava flow potassium-argon dating Triassic Argentina Chubut South America Western Hemisphere World
description	A sequence of dacitic/andesitic flows and pyroclastic rocks, in discordance above basandesitic volcanic series at eastern Nahuel Pan hills, has been dated by K/Ar method. Samples of the flows and basandesitic volcanic rocks yield ages of 105 ± 5 Ma and 252 ± 10 Ma. These ages assign to the lavic-pyroclastic sequence a Cretaceous age (at the lower part of upper member of Divisadero Group) and to the basandesitic volcanic rocks a Permotriassic age (in line with Choiyoi Group). This is the first occurrence, of the Choiyoi Group, in the eastern slope of the Andes at this latitude. © 2004 Asociación Geológica Argentina.
format	JOUR
author	Vattuone, M.E. Latorre, C.O.
author_facet	Vattuone, M.E. Latorre, C.O.
author_sort	Vattuone, M.E.
title	K/Ar ages from east Nahuel Pan hills, Chubut. Implicance in the Divisadero and Choiyoi Groups correlation
title_short	K/Ar ages from east Nahuel Pan hills, Chubut. Implicance in the Divisadero and Choiyoi Groups correlation
title_full	K/Ar ages from east Nahuel Pan hills, Chubut. Implicance in the Divisadero and Choiyoi Groups correlation
title_fullStr	K/Ar ages from east Nahuel Pan hills, Chubut. Implicance in the Divisadero and Choiyoi Groups correlation
title_full_unstemmed	K/Ar ages from east Nahuel Pan hills, Chubut. Implicance in the Divisadero and Choiyoi Groups correlation
title_sort	k/ar ages from east nahuel pan hills, chubut. implicance in the divisadero and choiyoi groups correlation
url	http://hdl.handle.net/20.500.12110/paper_00044822_v59_n3_p510_Vattuone
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K/Ar ages from east Nahuel Pan hills, Chubut. Implicance in the Divisadero and Choiyoi Groups correlation

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