Post-Pampean cooling and the uplift of the Sierras Pampeanas in the west of Córdoba (Central Argentina)

An extensive survey on the cooling history by K/Ar biotite and muscovite dating of the basement rocks of the Sierras de Córdoba (Argentina) and San Luis (Argentina) was carried out and interpreted in terms of a differential uplift history of the different blocks. Large pegmatitic muscovites from the...

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Autores principales: Steenken, A., Wemmer, K., Martino, R.D., De López Luchi, M.G., Guereschi, A., Siegesmund, S.
Formato: JOUR
Materias:
Cooling
K-Ar mineral dating
Pampean and famatinian
Sierras pampeanas
Southwestern gondwana
Zrogenies
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_00777749_v256_n2_p235_Steenken
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_00777749_v256_n2_p235_Steenken
record_format dspace
spelling todo:paper_00777749_v256_n2_p235_Steenken2023-10-03T14:54:15Z Post-Pampean cooling and the uplift of the Sierras Pampeanas in the west of Córdoba (Central Argentina) Steenken, A. Wemmer, K. Martino, R.D. De López Luchi, M.G. Guereschi, A. Siegesmund, S. Cooling K-Ar mineral dating Pampean and famatinian Sierras pampeanas Southwestern gondwana Zrogenies An extensive survey on the cooling history by K/Ar biotite and muscovite dating of the basement rocks of the Sierras de Córdoba (Argentina) and San Luis (Argentina) was carried out and interpreted in terms of a differential uplift history of the different blocks. Large pegmatitic muscovites from the Sierras de Córdoba record Late Cambrian to Early Ordovician ages. Beginning of cooling in the Sierra de San Luis is documented by muscovite booklets from pegmatites yielding ages between 448 Ma and 438 Ma. The limit between those age domains is marked by the Los Túneles and Guacha Corral shear zones accommodating the vertical displacement. Constraints by K/Ar mica ages and structural observations suggest two principal phases of compression around 480 Ma and 430 Ma. The latter coincides with the final collision of the Cuyania Terrane to the western outboard of Gondwana. The Pachango Shear Zone, which cuts the Los Túneles Shear Zone records the latest phase of ductile deformation in the Late Silurian. © 2010 Schweizerbart'sche Verlagsbuchhandlung, Stuttgart, Germany. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_00777749_v256_n2_p235_Steenken
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Cooling
K-Ar mineral dating
Pampean and famatinian
Sierras pampeanas
Southwestern gondwana
Zrogenies
spellingShingle Cooling
K-Ar mineral dating
Pampean and famatinian
Sierras pampeanas
Southwestern gondwana
Zrogenies
Steenken, A.
Wemmer, K.
Martino, R.D.
De López Luchi, M.G.
Guereschi, A.
Siegesmund, S.
Post-Pampean cooling and the uplift of the Sierras Pampeanas in the west of Córdoba (Central Argentina)
topic_facet Cooling
K-Ar mineral dating
Pampean and famatinian
Sierras pampeanas
Southwestern gondwana
Zrogenies
description An extensive survey on the cooling history by K/Ar biotite and muscovite dating of the basement rocks of the Sierras de Córdoba (Argentina) and San Luis (Argentina) was carried out and interpreted in terms of a differential uplift history of the different blocks. Large pegmatitic muscovites from the Sierras de Córdoba record Late Cambrian to Early Ordovician ages. Beginning of cooling in the Sierra de San Luis is documented by muscovite booklets from pegmatites yielding ages between 448 Ma and 438 Ma. The limit between those age domains is marked by the Los Túneles and Guacha Corral shear zones accommodating the vertical displacement. Constraints by K/Ar mica ages and structural observations suggest two principal phases of compression around 480 Ma and 430 Ma. The latter coincides with the final collision of the Cuyania Terrane to the western outboard of Gondwana. The Pachango Shear Zone, which cuts the Los Túneles Shear Zone records the latest phase of ductile deformation in the Late Silurian. © 2010 Schweizerbart'sche Verlagsbuchhandlung, Stuttgart, Germany.
format JOUR
author Steenken, A.
Wemmer, K.
Martino, R.D.
De López Luchi, M.G.
Guereschi, A.
Siegesmund, S.
author_facet Steenken, A.
Wemmer, K.
Martino, R.D.
De López Luchi, M.G.
Guereschi, A.
Siegesmund, S.
author_sort Steenken, A.
title Post-Pampean cooling and the uplift of the Sierras Pampeanas in the west of Córdoba (Central Argentina)
title_short Post-Pampean cooling and the uplift of the Sierras Pampeanas in the west of Córdoba (Central Argentina)
title_full Post-Pampean cooling and the uplift of the Sierras Pampeanas in the west of Córdoba (Central Argentina)
title_fullStr Post-Pampean cooling and the uplift of the Sierras Pampeanas in the west of Córdoba (Central Argentina)
title_full_unstemmed Post-Pampean cooling and the uplift of the Sierras Pampeanas in the west of Córdoba (Central Argentina)
title_sort post-pampean cooling and the uplift of the sierras pampeanas in the west of córdoba (central argentina)
url http://hdl.handle.net/20.500.12110/paper_00777749_v256_n2_p235_Steenken
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