Pseudokarst and speleothems in the Chihuido Granite, province of Mendoza, Argentina

Autores
Aguilera, Emilia Yolanda; Carretero, Silvina Claudia; Rabassa, Jorge Oscar; Rabassa, Jorge; Ollier, Cliff
Año de publicación
2014
Idioma
inglés
Tipo de recurso
parte de libro
Estado
versión publicada
Descripción
The core of the Chihuido Anticline is located precisely at Cerro Chihuido, Malargue, southern Mendoza province, Argentina. This anticline represents the outcropping pre-Jurassic platform of the margin of the Neuquen Basin, which is composed of three volcano-sedimentary units separated by angular unconformities. The older unit corresponds to the volcano-sedimentary complex named as El Fortin, which concludes with the intrusion of a thick rhyolite-monzogranite dyke. The dyke, together with plutons corresponding to the Gondwana magmatism, is exposed on a paleosurface whose relief has been partly fossilized by much modern pyroclastic rocks. The thickness of the dyke varies from 0.2 km to almost 1 km. In this landscape, the dyke is the most remarkable topographic and geological characteristic, not only for its huge dimensions but also for its numerous weathering cavities that provide it with a quite peculiar aspect. Typical pseudokarst landforms are represented by tafoni cavities. The nature of pseudokarst is portrayed by selective erosion along joint planes and andesite composition blocks included in the dyke. In the wall of some cavities within the almost vertical dyke, opal speleothems have been formed from silica released by rock weathering. The speleothems were studied by means of optical microscopy, scanning electron microscopy (SEM), and X-ray diffraction. The study of these minor features of the granitic landscape, such as tafoni, and the associated speleothems, the description of their morphology, and the analysis of their composition are the main objectives of this chapter.
Facultad de Ciencias Naturales y Museo
Materia
Geología
Geochemistry
Weathering
Etchplain
Granitic geomorphology
Espelothemes
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by-nc-sa/4.0/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/127309
Acceder
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network_name_str SEDICI (UNLP)
spelling Pseudokarst and speleothems in the Chihuido Granite, province of Mendoza, ArgentinaAguilera, Emilia YolandaCarretero, Silvina ClaudiaRabassa, Jorge OscarRabassa, JorgeOllier, CliffGeologíaGeochemistryWeatheringEtchplainGranitic geomorphologyEspelothemesThe core of the Chihuido Anticline is located precisely at Cerro Chihuido, Malargue, southern Mendoza province, Argentina. This anticline represents the outcropping pre-Jurassic platform of the margin of the Neuquen Basin, which is composed of three volcano-sedimentary units separated by angular unconformities. The older unit corresponds to the volcano-sedimentary complex named as El Fortin, which concludes with the intrusion of a thick rhyolite-monzogranite dyke. The dyke, together with plutons corresponding to the Gondwana magmatism, is exposed on a paleosurface whose relief has been partly fossilized by much modern pyroclastic rocks. The thickness of the dyke varies from 0.2 km to almost 1 km. In this landscape, the dyke is the most remarkable topographic and geological characteristic, not only for its huge dimensions but also for its numerous weathering cavities that provide it with a quite peculiar aspect. Typical pseudokarst landforms are represented by tafoni cavities. The nature of pseudokarst is portrayed by selective erosion along joint planes and andesite composition blocks included in the dyke. In the wall of some cavities within the almost vertical dyke, opal speleothems have been formed from silica released by rock weathering. The speleothems were studied by means of optical microscopy, scanning electron microscopy (SEM), and X-ray diffraction. The study of these minor features of the granitic landscape, such as tafoni, and the associated speleothems, the description of their morphology, and the analysis of their composition are the main objectives of this chapter.Facultad de Ciencias Naturales y MuseoSpringer, Dordrecht2014-02-22info:eu-repo/semantics/bookPartinfo:eu-repo/semantics/publishedVersionCapitulo de librohttp://purl.org/coar/resource_type/c_3248info:ar-repo/semantics/parteDeLibroapplication/pdf503-515http://sedici.unlp.edu.ar/handle/10915/127309enginfo:eu-repo/semantics/altIdentifier/isbn/978-94-007-7701-9info:eu-repo/semantics/altIdentifier/isbn/978-94-007-7702-6info:eu-repo/semantics/altIdentifier/doi/10.1007/978-94-007-7702-6_18info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-sa/4.0/Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-09-03T11:02:48Zoai:sedici.unlp.edu.ar:10915/127309Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-03 11:02:48.816SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Pseudokarst and speleothems in the Chihuido Granite, province of Mendoza, Argentina
title Pseudokarst and speleothems in the Chihuido Granite, province of Mendoza, Argentina
spellingShingle Pseudokarst and speleothems in the Chihuido Granite, province of Mendoza, Argentina
Aguilera, Emilia Yolanda
Geología
Geochemistry
Weathering
Etchplain
Granitic geomorphology
Espelothemes
title_short Pseudokarst and speleothems in the Chihuido Granite, province of Mendoza, Argentina
title_full Pseudokarst and speleothems in the Chihuido Granite, province of Mendoza, Argentina
title_fullStr Pseudokarst and speleothems in the Chihuido Granite, province of Mendoza, Argentina
title_full_unstemmed Pseudokarst and speleothems in the Chihuido Granite, province of Mendoza, Argentina
title_sort Pseudokarst and speleothems in the Chihuido Granite, province of Mendoza, Argentina
dc.creator.none.fl_str_mv Aguilera, Emilia Yolanda
Carretero, Silvina Claudia
Rabassa, Jorge Oscar
Rabassa, Jorge
Ollier, Cliff
author Aguilera, Emilia Yolanda
author_facet Aguilera, Emilia Yolanda
Carretero, Silvina Claudia
Rabassa, Jorge Oscar
Rabassa, Jorge
Ollier, Cliff
author_role author
author2 Carretero, Silvina Claudia
Rabassa, Jorge Oscar
Rabassa, Jorge
Ollier, Cliff
author2_role author
author
author
author
dc.subject.none.fl_str_mv Geología
Geochemistry
Weathering
Etchplain
Granitic geomorphology
Espelothemes
topic Geología
Geochemistry
Weathering
Etchplain
Granitic geomorphology
Espelothemes
dc.description.none.fl_txt_mv The core of the Chihuido Anticline is located precisely at Cerro Chihuido, Malargue, southern Mendoza province, Argentina. This anticline represents the outcropping pre-Jurassic platform of the margin of the Neuquen Basin, which is composed of three volcano-sedimentary units separated by angular unconformities. The older unit corresponds to the volcano-sedimentary complex named as El Fortin, which concludes with the intrusion of a thick rhyolite-monzogranite dyke. The dyke, together with plutons corresponding to the Gondwana magmatism, is exposed on a paleosurface whose relief has been partly fossilized by much modern pyroclastic rocks. The thickness of the dyke varies from 0.2 km to almost 1 km. In this landscape, the dyke is the most remarkable topographic and geological characteristic, not only for its huge dimensions but also for its numerous weathering cavities that provide it with a quite peculiar aspect. Typical pseudokarst landforms are represented by tafoni cavities. The nature of pseudokarst is portrayed by selective erosion along joint planes and andesite composition blocks included in the dyke. In the wall of some cavities within the almost vertical dyke, opal speleothems have been formed from silica released by rock weathering. The speleothems were studied by means of optical microscopy, scanning electron microscopy (SEM), and X-ray diffraction. The study of these minor features of the granitic landscape, such as tafoni, and the associated speleothems, the description of their morphology, and the analysis of their composition are the main objectives of this chapter.
Facultad de Ciencias Naturales y Museo
description The core of the Chihuido Anticline is located precisely at Cerro Chihuido, Malargue, southern Mendoza province, Argentina. This anticline represents the outcropping pre-Jurassic platform of the margin of the Neuquen Basin, which is composed of three volcano-sedimentary units separated by angular unconformities. The older unit corresponds to the volcano-sedimentary complex named as El Fortin, which concludes with the intrusion of a thick rhyolite-monzogranite dyke. The dyke, together with plutons corresponding to the Gondwana magmatism, is exposed on a paleosurface whose relief has been partly fossilized by much modern pyroclastic rocks. The thickness of the dyke varies from 0.2 km to almost 1 km. In this landscape, the dyke is the most remarkable topographic and geological characteristic, not only for its huge dimensions but also for its numerous weathering cavities that provide it with a quite peculiar aspect. Typical pseudokarst landforms are represented by tafoni cavities. The nature of pseudokarst is portrayed by selective erosion along joint planes and andesite composition blocks included in the dyke. In the wall of some cavities within the almost vertical dyke, opal speleothems have been formed from silica released by rock weathering. The speleothems were studied by means of optical microscopy, scanning electron microscopy (SEM), and X-ray diffraction. The study of these minor features of the granitic landscape, such as tafoni, and the associated speleothems, the description of their morphology, and the analysis of their composition are the main objectives of this chapter.
publishDate 2014
dc.date.none.fl_str_mv 2014-02-22
dc.type.none.fl_str_mv info:eu-repo/semantics/bookPart
info:eu-repo/semantics/publishedVersion
Capitulo de libro
http://purl.org/coar/resource_type/c_3248
info:ar-repo/semantics/parteDeLibro
format bookPart
status_str publishedVersion
dc.identifier.none.fl_str_mv http://sedici.unlp.edu.ar/handle/10915/127309
url http://sedici.unlp.edu.ar/handle/10915/127309
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/isbn/978-94-007-7701-9
info:eu-repo/semantics/altIdentifier/isbn/978-94-007-7702-6
info:eu-repo/semantics/altIdentifier/doi/10.1007/978-94-007-7702-6_18
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
dc.format.none.fl_str_mv application/pdf
503-515
dc.publisher.none.fl_str_mv Springer, Dordrecht
publisher.none.fl_str_mv Springer, Dordrecht
dc.source.none.fl_str_mv reponame:SEDICI (UNLP)
instname:Universidad Nacional de La Plata
instacron:UNLP
reponame_str SEDICI (UNLP)
collection SEDICI (UNLP)
instname_str Universidad Nacional de La Plata
instacron_str UNLP
institution UNLP
repository.name.fl_str_mv SEDICI (UNLP) - Universidad Nacional de La Plata
repository.mail.fl_str_mv alira@sedici.unlp.edu.ar
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score 13.13397

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