Planation surfaces of centralwestern Argentina

The region of central western Argentina is situated in a complex geological and tectonic setting with transitional features between major environmental, tectonic, and geomorphological domains. Preserved remnants of planation surfaces, which form the summit of major geological units, occur as discont...

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Detalles Bibliográficos
Autores principales:	Zárate, M., Folguera, A.
Formato:	CHAP
Materias:	Central Western Argentina Cratonic areas Etchplains Gondwana Pediplains
Acceso en línea:	http://hdl.handle.net/20.500.12110/paper_97894007_v_n_p365_Zarate
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

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spelling	todo:paper_97894007_v_n_p365_Zarate2023-10-03T16:45:21Z Planation surfaces of centralwestern Argentina Zárate, M. Folguera, A. Central Western Argentina Cratonic areas Etchplains Gondwana Pediplains The region of central western Argentina is situated in a complex geological and tectonic setting with transitional features between major environmental, tectonic, and geomorphological domains. Preserved remnants of planation surfaces, which form the summit of major geological units, occur as discontinuous and isolated exposures with a remarkable geographical distribution along 600 km (33°-39° S). The main goal of this chapter is to summarize the available information and describe the main features and geological context of the planation surfaces preserved in the areas of the San Rafael block, Payenia, the Chical-có plain, and the Chadileuvú block situated in the southern part of Mendoza and western La Pampa provinces, central western Argentina. The common feature of the areas under analysis is the occurrence of remnants of planation surfaces at different altitudes which cut across bedrock of different composition (igneous, metamorphic, and sedimentary units) and varied age ranging from the Middle Proterozoic (Grenvillian age) to Middle Triassic continental sedimentary rocks. The development may have begun in the Triassic, before the Gondwana breakup and more than one planation surface might be present. During the Late Miocene synorogenic deposits covered the planation surface at the San Rafael block, very likely Payenia, and the Chical-có plain; no conclusive evidence is available in the area of the Chadileuvú block. As a result of tectonic activity (circa 7-6 Ma?), the region was fractured, differentially uplifted, and started a general exhumation process that partially removed the Late Miocene sedimentary cover from the San Rafael block and the eastern margin of Chical-có plain. © Springer Science+Business Media Dordrecht 2014. CHAP info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_97894007_v_n_p365_Zarate
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	Central Western Argentina Cratonic areas Etchplains Gondwana Pediplains
spellingShingle	Central Western Argentina Cratonic areas Etchplains Gondwana Pediplains Zárate, M. Folguera, A. Planation surfaces of centralwestern Argentina
topic_facet	Central Western Argentina Cratonic areas Etchplains Gondwana Pediplains
description	The region of central western Argentina is situated in a complex geological and tectonic setting with transitional features between major environmental, tectonic, and geomorphological domains. Preserved remnants of planation surfaces, which form the summit of major geological units, occur as discontinuous and isolated exposures with a remarkable geographical distribution along 600 km (33°-39° S). The main goal of this chapter is to summarize the available information and describe the main features and geological context of the planation surfaces preserved in the areas of the San Rafael block, Payenia, the Chical-có plain, and the Chadileuvú block situated in the southern part of Mendoza and western La Pampa provinces, central western Argentina. The common feature of the areas under analysis is the occurrence of remnants of planation surfaces at different altitudes which cut across bedrock of different composition (igneous, metamorphic, and sedimentary units) and varied age ranging from the Middle Proterozoic (Grenvillian age) to Middle Triassic continental sedimentary rocks. The development may have begun in the Triassic, before the Gondwana breakup and more than one planation surface might be present. During the Late Miocene synorogenic deposits covered the planation surface at the San Rafael block, very likely Payenia, and the Chical-có plain; no conclusive evidence is available in the area of the Chadileuvú block. As a result of tectonic activity (circa 7-6 Ma?), the region was fractured, differentially uplifted, and started a general exhumation process that partially removed the Late Miocene sedimentary cover from the San Rafael block and the eastern margin of Chical-có plain. © Springer Science+Business Media Dordrecht 2014.
format	CHAP
author	Zárate, M. Folguera, A.
author_facet	Zárate, M. Folguera, A.
author_sort	Zárate, M.
title	Planation surfaces of centralwestern Argentina
title_short	Planation surfaces of centralwestern Argentina
title_full	Planation surfaces of centralwestern Argentina
title_fullStr	Planation surfaces of centralwestern Argentina
title_full_unstemmed	Planation surfaces of centralwestern Argentina
title_sort	planation surfaces of centralwestern argentina
url	http://hdl.handle.net/20.500.12110/paper_97894007_v_n_p365_Zarate
work_keys_str_mv	AT zaratem planationsurfacesofcentralwesternargentina AT folgueraa planationsurfacesofcentralwesternargentina
_version_	1807320677404901376

Planation surfaces of centralwestern Argentina

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