Lithologies, structure and basement-cover relationships in the schist belt of the Dom Feliciano Belt in Uruguay

Autores
Masquelin, Henri; Silva Lara, Hernán; Bettucci Sanchez, Leda; Núñez Demarco, Pablo Andrés; Pascual, Sofía; Muzio, Rossana; Peel, Elena; Scaglia, Fernando
Año de publicación
2017
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
This work is the result of a multiyear effort to use field geology to describe lithologies, to establish contact relationships and to create a sketch of the tectonic evolution of the Meso- to Neoproterozoic metasedimentary successions within the Schist Belt of the Dom Feliciano Belt. This low-grade metamorphic cover rests on the high-grade metamorphic basement of the La China and Las Tetas complexes. This basement is Archean-Paleoproterozoic in age. The Schist Belt is overlapped unconformably by the Barriga Negra formation. The Lavalleja complex and the Barriga Negra formation both deformed together during the D2 deformation event (∼ 570 -540 Ma), but the Barriga Negra only partially recorded the D2 transpressive event, whereas the Lavalleja complex was affected by both the D1 tangential event and the D2 event. Event D1 would have developed a fold nappe with vergence to the south. This hypothesis is supported by different structures: (i) recumbent and upright folds oriented E-W, (ii) subhorizontal mylonitic foliation in marbles (calc-schists), (iii) stretching lineations plunging towards the SW in metaconglomerates of the Las Tetas Complex, and (iv) a reworking of the subhorizontal foliation parallel to the Sarandí del Yí strike-slip shear zone.
Fil: Masquelin, Henri. Universidad de la República. Facultad de Ciencias; Uruguay
Fil: Silva Lara, Hernán. Universidad de la República. Facultad de Ciencias; Uruguay
Fil: Bettucci Sanchez, Leda. Universidad de la República. Facultad de Ciencias; Uruguay
Fil: Núñez Demarco, Pablo Andrés. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad de la República. Facultad de Ciencias; Uruguay
Fil: Pascual, Sofía. Universidad de la República. Facultad de Ciencias; Uruguay
Fil: Muzio, Rossana. Universidad de la República. Facultad de Ciencias; Uruguay
Fil: Peel, Elena. Universidad de la República. Facultad de Ciencias; Uruguay
Fil: Scaglia, Fernando. Universidad de la República. Facultad de Ciencias; Uruguay
Materia
DEFORMATION
DOM FELICIANO BELT
EDIACARAN
FOLD NAPPE
TECTONIC EVOLUTION
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/66325

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network_name_str CONICET Digital (CONICET)
spelling Lithologies, structure and basement-cover relationships in the schist belt of the Dom Feliciano Belt in UruguayLitologias, estrutura e relações embasamento-cobertura na Faixa de Xistos do Cinturão Dom Feliciano no UruguaiMasquelin, HenriSilva Lara, HernánBettucci Sanchez, LedaNúñez Demarco, Pablo AndrésPascual, SofíaMuzio, RossanaPeel, ElenaScaglia, FernandoDEFORMATIONDOM FELICIANO BELTEDIACARANFOLD NAPPETECTONIC EVOLUTIONhttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1This work is the result of a multiyear effort to use field geology to describe lithologies, to establish contact relationships and to create a sketch of the tectonic evolution of the Meso- to Neoproterozoic metasedimentary successions within the Schist Belt of the Dom Feliciano Belt. This low-grade metamorphic cover rests on the high-grade metamorphic basement of the La China and Las Tetas complexes. This basement is Archean-Paleoproterozoic in age. The Schist Belt is overlapped unconformably by the Barriga Negra formation. The Lavalleja complex and the Barriga Negra formation both deformed together during the D2 deformation event (∼ 570 -540 Ma), but the Barriga Negra only partially recorded the D2 transpressive event, whereas the Lavalleja complex was affected by both the D1 tangential event and the D2 event. Event D1 would have developed a fold nappe with vergence to the south. This hypothesis is supported by different structures: (i) recumbent and upright folds oriented E-W, (ii) subhorizontal mylonitic foliation in marbles (calc-schists), (iii) stretching lineations plunging towards the SW in metaconglomerates of the Las Tetas Complex, and (iv) a reworking of the subhorizontal foliation parallel to the Sarandí del Yí strike-slip shear zone.Fil: Masquelin, Henri. Universidad de la República. Facultad de Ciencias; UruguayFil: Silva Lara, Hernán. Universidad de la República. Facultad de Ciencias; UruguayFil: Bettucci Sanchez, Leda. Universidad de la República. Facultad de Ciencias; UruguayFil: Núñez Demarco, Pablo Andrés. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad de la República. Facultad de Ciencias; UruguayFil: Pascual, Sofía. Universidad de la República. Facultad de Ciencias; UruguayFil: Muzio, Rossana. Universidad de la República. Facultad de Ciencias; UruguayFil: Peel, Elena. Universidad de la República. Facultad de Ciencias; UruguayFil: Scaglia, Fernando. Universidad de la República. Facultad de Ciencias; UruguaySociedade Brasileira de Geologia2017-03info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/66325Masquelin, Henri; Silva Lara, Hernán; Bettucci Sanchez, Leda; Núñez Demarco, Pablo Andrés; Pascual, Sofía; et al.; Lithologies, structure and basement-cover relationships in the schist belt of the Dom Feliciano Belt in Uruguay; Sociedade Brasileira de Geologia; Brazilian Journal of Geology; 47; 1; 3-2017; 21-422317-4692CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1590/2317-4889201720160119info:eu-repo/semantics/altIdentifier/url/http://ref.scielo.org/v368skinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-22T12:13:06Zoai:ri.conicet.gov.ar:11336/66325instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-10-22 12:13:06.401CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Lithologies, structure and basement-cover relationships in the schist belt of the Dom Feliciano Belt in Uruguay
Litologias, estrutura e relações embasamento-cobertura na Faixa de Xistos do Cinturão Dom Feliciano no Uruguai
title Lithologies, structure and basement-cover relationships in the schist belt of the Dom Feliciano Belt in Uruguay
spellingShingle Lithologies, structure and basement-cover relationships in the schist belt of the Dom Feliciano Belt in Uruguay
Masquelin, Henri
DEFORMATION
DOM FELICIANO BELT
EDIACARAN
FOLD NAPPE
TECTONIC EVOLUTION
title_short Lithologies, structure and basement-cover relationships in the schist belt of the Dom Feliciano Belt in Uruguay
title_full Lithologies, structure and basement-cover relationships in the schist belt of the Dom Feliciano Belt in Uruguay
title_fullStr Lithologies, structure and basement-cover relationships in the schist belt of the Dom Feliciano Belt in Uruguay
title_full_unstemmed Lithologies, structure and basement-cover relationships in the schist belt of the Dom Feliciano Belt in Uruguay
title_sort Lithologies, structure and basement-cover relationships in the schist belt of the Dom Feliciano Belt in Uruguay
dc.creator.none.fl_str_mv Masquelin, Henri
Silva Lara, Hernán
Bettucci Sanchez, Leda
Núñez Demarco, Pablo Andrés
Pascual, Sofía
Muzio, Rossana
Peel, Elena
Scaglia, Fernando
author Masquelin, Henri
author_facet Masquelin, Henri
Silva Lara, Hernán
Bettucci Sanchez, Leda
Núñez Demarco, Pablo Andrés
Pascual, Sofía
Muzio, Rossana
Peel, Elena
Scaglia, Fernando
author_role author
author2 Silva Lara, Hernán
Bettucci Sanchez, Leda
Núñez Demarco, Pablo Andrés
Pascual, Sofía
Muzio, Rossana
Peel, Elena
Scaglia, Fernando
author2_role author
author
author
author
author
author
author
dc.subject.none.fl_str_mv DEFORMATION
DOM FELICIANO BELT
EDIACARAN
FOLD NAPPE
TECTONIC EVOLUTION
topic DEFORMATION
DOM FELICIANO BELT
EDIACARAN
FOLD NAPPE
TECTONIC EVOLUTION
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv This work is the result of a multiyear effort to use field geology to describe lithologies, to establish contact relationships and to create a sketch of the tectonic evolution of the Meso- to Neoproterozoic metasedimentary successions within the Schist Belt of the Dom Feliciano Belt. This low-grade metamorphic cover rests on the high-grade metamorphic basement of the La China and Las Tetas complexes. This basement is Archean-Paleoproterozoic in age. The Schist Belt is overlapped unconformably by the Barriga Negra formation. The Lavalleja complex and the Barriga Negra formation both deformed together during the D2 deformation event (∼ 570 -540 Ma), but the Barriga Negra only partially recorded the D2 transpressive event, whereas the Lavalleja complex was affected by both the D1 tangential event and the D2 event. Event D1 would have developed a fold nappe with vergence to the south. This hypothesis is supported by different structures: (i) recumbent and upright folds oriented E-W, (ii) subhorizontal mylonitic foliation in marbles (calc-schists), (iii) stretching lineations plunging towards the SW in metaconglomerates of the Las Tetas Complex, and (iv) a reworking of the subhorizontal foliation parallel to the Sarandí del Yí strike-slip shear zone.
Fil: Masquelin, Henri. Universidad de la República. Facultad de Ciencias; Uruguay
Fil: Silva Lara, Hernán. Universidad de la República. Facultad de Ciencias; Uruguay
Fil: Bettucci Sanchez, Leda. Universidad de la República. Facultad de Ciencias; Uruguay
Fil: Núñez Demarco, Pablo Andrés. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad de la República. Facultad de Ciencias; Uruguay
Fil: Pascual, Sofía. Universidad de la República. Facultad de Ciencias; Uruguay
Fil: Muzio, Rossana. Universidad de la República. Facultad de Ciencias; Uruguay
Fil: Peel, Elena. Universidad de la República. Facultad de Ciencias; Uruguay
Fil: Scaglia, Fernando. Universidad de la República. Facultad de Ciencias; Uruguay
description This work is the result of a multiyear effort to use field geology to describe lithologies, to establish contact relationships and to create a sketch of the tectonic evolution of the Meso- to Neoproterozoic metasedimentary successions within the Schist Belt of the Dom Feliciano Belt. This low-grade metamorphic cover rests on the high-grade metamorphic basement of the La China and Las Tetas complexes. This basement is Archean-Paleoproterozoic in age. The Schist Belt is overlapped unconformably by the Barriga Negra formation. The Lavalleja complex and the Barriga Negra formation both deformed together during the D2 deformation event (∼ 570 -540 Ma), but the Barriga Negra only partially recorded the D2 transpressive event, whereas the Lavalleja complex was affected by both the D1 tangential event and the D2 event. Event D1 would have developed a fold nappe with vergence to the south. This hypothesis is supported by different structures: (i) recumbent and upright folds oriented E-W, (ii) subhorizontal mylonitic foliation in marbles (calc-schists), (iii) stretching lineations plunging towards the SW in metaconglomerates of the Las Tetas Complex, and (iv) a reworking of the subhorizontal foliation parallel to the Sarandí del Yí strike-slip shear zone.
publishDate 2017
dc.date.none.fl_str_mv 2017-03
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/66325
Masquelin, Henri; Silva Lara, Hernán; Bettucci Sanchez, Leda; Núñez Demarco, Pablo Andrés; Pascual, Sofía; et al.; Lithologies, structure and basement-cover relationships in the schist belt of the Dom Feliciano Belt in Uruguay; Sociedade Brasileira de Geologia; Brazilian Journal of Geology; 47; 1; 3-2017; 21-42
2317-4692
CONICET Digital
CONICET
url http://hdl.handle.net/11336/66325
identifier_str_mv Masquelin, Henri; Silva Lara, Hernán; Bettucci Sanchez, Leda; Núñez Demarco, Pablo Andrés; Pascual, Sofía; et al.; Lithologies, structure and basement-cover relationships in the schist belt of the Dom Feliciano Belt in Uruguay; Sociedade Brasileira de Geologia; Brazilian Journal of Geology; 47; 1; 3-2017; 21-42
2317-4692
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1590/2317-4889201720160119
info:eu-repo/semantics/altIdentifier/url/http://ref.scielo.org/v368sk
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Sociedade Brasileira de Geologia
publisher.none.fl_str_mv Sociedade Brasileira de Geologia
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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