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dc.contributor.author
Suárez, Rodrigo Javier
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Ghiglione, Matias
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Sue, Christian
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Roy, Sandrine
dc.date.available
2023-04-14T15:35:12Z
dc.date.issued
2018
dc.identifier.citation
New assessment of basement units in the fitz roy area: implications for an early mesozoic tectono-metamorphic event at southern patagonia; XV Congreso Geológico Chileno; Concepción; Chile; 2018; 1-4
dc.identifier.uri
http://hdl.handle.net/11336/193878
dc.description.abstract
Among the complex collage of metamorphic belts exposed in the Patagonian Andes, the Triassic metamorphic rocks are poorlyrepresented. They only outcrop at the southern Chilean coast within the Chonos Metamorphic Complex (CMC), a subductioncomplex (Hervé et al. 2008), which witness of an active subduction during the Late Triassic (Hervé and Fanning 2001). Recently,U-Pb dating in detrital zircons performed in metasedimentary rocks from the Nunatak Viedma, which crops out west of the Fitz Royarea, within the Southern Patagonian Ice Field, revealed grain-ages youngest at Late Triassic (Suárez et al. 2018). We proposedto define the Nunatak Viedma Unit (NVU) in the Southern Patagonian Andes (SPA; Suárez et al. 2018) on the basis of these newobservations. The rocks of the NVU exhibit a main phase of ductile to brittle-ductile deformation tentatively correlated with theLate Triassic-Early Jurassic Chonide deformation event (Suárez et al. 2018) identified in the southern Chilean coast (Thomson andHervé 2002; Hervé et al. 2008). However, the age of the NVU?s tectono-metamorphic event, as well as its tectonic significance, arestill unknown. New geological mapping carried out in the Fitz Roy region (Fig. 1) reveals that outcrops previously mapped either asBahía de la Lancha Formation (BLF) or as volcanic rocks of the El Quemado Complex, shows lithological and structural similaritieswith the rocks of the NVU (Fig. 1). The preliminary structural results presented in this contribution aim to better constrain thedeformation phase of the NVU and to discuss its age and tectonic significance.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Universidad de Concepción
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Southern Patagonian Andes
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Nunatak Viedma Unit
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Orogenesis
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Chonide event
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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
New assessment of basement units in the fitz roy area: implications for an early mesozoic tectono-metamorphic event at southern patagonia
dc.type
info:eu-repo/semantics/publishedVersion
dc.type
info:eu-repo/semantics/conferenceObject
dc.type
info:ar-repo/semantics/documento de conferencia
dc.date.updated
2023-02-27T16:01:00Z
dc.journal.pagination
1-4
dc.journal.pais
Chile
dc.journal.ciudad
Concepción
dc.description.fil
Fil: Suárez, Rodrigo Javier. 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
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Fil: Ghiglione, Matias. 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
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Fil: Sue, Christian. Universite de Franche-Comte; Francia
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Fil: Roy, Sandrine. Université de Savoie Mont-Blanc; Francia
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://congresogeologicochileno.cl/wp-content/uploads/2018/12/Libro-de-Actas-XVCongresoGeologicoChileno2018-2.pdf
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Autor
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Autor
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Autor
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Autor
dc.coverage
Internacional
dc.type.subtype
Congreso
dc.description.nombreEvento
XV Congreso Geológico Chileno
dc.date.evento
2018-11-18
dc.description.ciudadEvento
Concepción
dc.description.paisEvento
Chile
dc.type.publicacion
Book
dc.description.institucionOrganizadora
Universidad de Concepción
dc.description.institucionOrganizadora
Colegio de Geólogos de Chile
dc.description.institucionOrganizadora
Sociedad Geológica de Chile
dc.source.libro
Libro de Actas: Geociencias hacia la comunidad
dc.date.eventoHasta
2018-11-23
dc.type
Congreso
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