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dc.contributor.author
Sagripanti, Lucía
dc.contributor.author
Folguera Telichevsky, Andres
dc.contributor.author
Fennell, Lucas Martín
dc.contributor.author
Rojas Vera, Emilio Agustin
dc.contributor.author
Ramos, Victor Alberto
dc.contributor.other
Folguera Telichevsky, Andres
dc.contributor.other
Naipauer, Maximiliano
dc.contributor.other
Sagripanti, Lucía
dc.contributor.other
Ghiglione, Matias
dc.contributor.other
Orts, Darío Leandro
dc.contributor.other
Giambiagi, Laura Beatriz
dc.date.available
2023-01-24T17:44:31Z
dc.date.issued
2015
dc.identifier.citation
Sagripanti, Lucía; Folguera Telichevsky, Andres; Fennell, Lucas Martín; Rojas Vera, Emilio Agustin; Ramos, Victor Alberto; Progression of the Deformation in the Southern Central Andes (37ºS); Springer; 2015; 115-132
dc.identifier.isbn
978-3-319-23059-7
dc.identifier.uri
http://hdl.handle.net/11336/185441
dc.description.abstract
This chapter analyzes the deformational pulses and mechanisms thataffected the Southern Central Andes across 37°S. Four zones were analyzed indetail that from west to east are the Cordillera del Viento, the Tromen volcanicplateau, the Sierra de Reyes, and the Chachahuén volcanic complex. Each of thesezones shows evidence of one or more deformational stages that affected the Andeanmargin from the Late Cretaceous onwards. Due to the contrasting structure andgeology, different methodologies were applied for their study, (i) balanced structuralcross sections to represent structure at depth, (ii) use of potential methods(gravimetry and magnetometry) for a subsurface constraint, (iii) geochronologicalanalyses using U/Pb dating of detrital zircons in synorogenic sequences to determinemaximum ages and source areas, (iv) morphometric analyses in the drainagenetwork in order to analyze the activity of neotectonic structures during landscapeevolution. As a result, an evolutionary model is presented for the Southern CentralAndes in which four pulses of deformation were recognized in agreement withprevious proposals, although with a variable distribution reflecting a complexpattern. In particular, the Cordillera del Viento area in the westernmost sectorregisters an uplift stage that occurred during the Late Cretaceous followed by a lateMiocene reactivation. The mechanisms associated with this uplift are related to theselective reactivation of half-grabens and generation of new thrusts cutting throughthe extensional architecture. To the east, the Tromen volcanic plateau registers apre-Miocene stage of uplift, later affected by a neotectonic reactivation.Localization of neotectonic activity could be related to the emplacement ofasthenospheric material and consequent weakening of the upper crust, as revealedby magnetotelluric studies. In the orogenic front, the Sierra de Reyes was initiallyuplifted during Eocene times and subsequently suffered a strong reactivation duringthe Neogene. This last stage produced synorogenic successions in the Sierra de Reyes foredeep describing an unroofing sequence. Finally, the Neogene deformationalstage exhumed Lower Cretaceous sequences in the foreland region before7 Ma expanding considerably the orogenic wedge. Thus, the Chos Malal fold andthrust belt shows a foreland sequence development between the Upper Cretaceousand Eocene, that was followed by a sudden expansion of the orogenic wedge in lateMiocene times and reactivation of the western sectors. Finally, Quaternaryout-of-sequence thrusts define an active orogenic front at the midsection of the foldand thrust belt.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Springer
dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Southern Andes
dc.subject
Growth
dc.subject
deformation
dc.subject
ages
dc.subject.classification
Geología
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Ciencias de la Tierra y relacionadas con el Medio Ambiente
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CIENCIAS NATURALES Y EXACTAS
dc.title
Progression of the Deformation in the Southern Central Andes (37ºS)
dc.type
info:eu-repo/semantics/publishedVersion
dc.type
info:eu-repo/semantics/bookPart
dc.type
info:ar-repo/semantics/parte de libro
dc.date.updated
2022-07-04T19:32:02Z
dc.identifier.eissn
2197-960X
dc.journal.pagination
115-132
dc.journal.pais
Suiza
dc.description.fil
Fil: Sagripanti, Lucía. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Estudios Andinos "Don Pablo Groeber". Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Estudios Andinos "Don Pablo Groeber"; Argentina
dc.description.fil
Fil: Folguera Telichevsky, Andres. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Estudios Andinos "Don Pablo Groeber". Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Estudios Andinos "Don Pablo Groeber"; Argentina
dc.description.fil
Fil: Fennell, Lucas Martín. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Estudios Andinos "Don Pablo Groeber". Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Estudios Andinos "Don Pablo Groeber"; Argentina
dc.description.fil
Fil: Rojas Vera, Emilio Agustin. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Estudios Andinos "Don Pablo Groeber". Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Estudios Andinos "Don Pablo Groeber"; Argentina
dc.description.fil
Fil: Ramos, Victor Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Estudios Andinos "Don Pablo Groeber". Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Estudios Andinos "Don Pablo Groeber"; Argentina
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://link.springer.com/chapter/10.1007/978-3-319-23060-3_6
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1007/978-3-319-23060-3_6
dc.conicet.paginas
281
dc.source.titulo
Growth of the Southern Andes
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