Grenvillian basement and Famatinian events of the Sierra de Umango (29°s): a review and new geochronological data
- Autores
- Varela, Ricardo; Stipp Basei, Miguel Angelo; Sato, Ana María; González, Pablo Diego; Siga Jr., O.; Campos Neto, M. C.; Cingolani, Carlos Alberto
- Año de publicación
- 2003
- Idioma
- inglés
- Tipo de recurso
- documento de conferencia
- Estado
- versión publicada
- Descripción
- The Sierra de Umango (29°()(),S-68°40'W) was interpreted as part of a northernmost Grenvillian-age rocks of Laurentian-derived terrane, accreted to the southwestern margin of Gondwana. The most important tectono-metamorphic and magmatic processes related to this collision occurred along the N-S trending Famatinian orogen since the Ordovician to Devonian (e.g. Dalla Salda et al., 1992, 1998; Ramos et al., 1998; Astini, 1998; Casquet et al., 2001), overprinting the magmatic and metamorphic rocks already affected by previous Grenvillian history. In this paper we present new U-Pb ages that extends the outcrops of Grenvillian rocks to the north of the well known localities with Mesoproterozoic rocks, and also constrain the age of the subsequent overprinting events. The new ages together with the already existing data, allow us to understand the geological evolution of the Sierra de Vmango in relation to the Lower Paleozoic Famatinian Orogeny.
Centro de Investigaciones Geológicas - Materia
-
Geología
Grenvillian basement
Middle Proterozoic
Lower Paleozoic
geochronology - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- http://creativecommons.org/licenses/by-nc-sa/4.0/
- Repositorio
.jpg)
- Institución
- Universidad Nacional de La Plata
- OAI Identificador
- oai:sedici.unlp.edu.ar:10915/164915
Ver los metadatos del registro completo
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Grenvillian basement and Famatinian events of the Sierra de Umango (29°s): a review and new geochronological dataVarela, RicardoStipp Basei, Miguel AngeloSato, Ana MaríaGonzález, Pablo DiegoSiga Jr., O.Campos Neto, M. C.Cingolani, Carlos AlbertoGeologíaGrenvillian basementMiddle ProterozoicLower PaleozoicgeochronologyThe Sierra de Umango (29°()(),S-68°40'W) was interpreted as part of a northernmost Grenvillian-age rocks of Laurentian-derived terrane, accreted to the southwestern margin of Gondwana. The most important tectono-metamorphic and magmatic processes related to this collision occurred along the N-S trending Famatinian orogen since the Ordovician to Devonian (e.g. Dalla Salda et al., 1992, 1998; Ramos et al., 1998; Astini, 1998; Casquet et al., 2001), overprinting the magmatic and metamorphic rocks already affected by previous Grenvillian history. In this paper we present new U-Pb ages that extends the outcrops of Grenvillian rocks to the north of the well known localities with Mesoproterozoic rocks, and also constrain the age of the subsequent overprinting events. The new ages together with the already existing data, allow us to understand the geological evolution of the Sierra de Vmango in relation to the Lower Paleozoic Famatinian Orogeny.Centro de Investigaciones Geológicas2003info:eu-repo/semantics/conferenceObjectinfo:eu-repo/semantics/publishedVersionObjeto de conferenciahttp://purl.org/coar/resource_type/c_5794info:ar-repo/semantics/documentoDeConferenciaapplication/pdf304-306http://sedici.unlp.edu.ar/handle/10915/164915enginfo: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:UNLP2025-09-29T11:43:41Zoai:sedici.unlp.edu.ar:10915/164915Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-29 11:43:42.112SEDICI (UNLP) - Universidad Nacional de La Platafalse |
| dc.title.none.fl_str_mv |
Grenvillian basement and Famatinian events of the Sierra de Umango (29°s): a review and new geochronological data |
| title |
Grenvillian basement and Famatinian events of the Sierra de Umango (29°s): a review and new geochronological data |
| spellingShingle |
Grenvillian basement and Famatinian events of the Sierra de Umango (29°s): a review and new geochronological data Varela, Ricardo Geología Grenvillian basement Middle Proterozoic Lower Paleozoic geochronology |
| title_short |
Grenvillian basement and Famatinian events of the Sierra de Umango (29°s): a review and new geochronological data |
| title_full |
Grenvillian basement and Famatinian events of the Sierra de Umango (29°s): a review and new geochronological data |
| title_fullStr |
Grenvillian basement and Famatinian events of the Sierra de Umango (29°s): a review and new geochronological data |
| title_full_unstemmed |
Grenvillian basement and Famatinian events of the Sierra de Umango (29°s): a review and new geochronological data |
| title_sort |
Grenvillian basement and Famatinian events of the Sierra de Umango (29°s): a review and new geochronological data |
| dc.creator.none.fl_str_mv |
Varela, Ricardo Stipp Basei, Miguel Angelo Sato, Ana María González, Pablo Diego Siga Jr., O. Campos Neto, M. C. Cingolani, Carlos Alberto |
| author |
Varela, Ricardo |
| author_facet |
Varela, Ricardo Stipp Basei, Miguel Angelo Sato, Ana María González, Pablo Diego Siga Jr., O. Campos Neto, M. C. Cingolani, Carlos Alberto |
| author_role |
author |
| author2 |
Stipp Basei, Miguel Angelo Sato, Ana María González, Pablo Diego Siga Jr., O. Campos Neto, M. C. Cingolani, Carlos Alberto |
| author2_role |
author author author author author author |
| dc.subject.none.fl_str_mv |
Geología Grenvillian basement Middle Proterozoic Lower Paleozoic geochronology |
| topic |
Geología Grenvillian basement Middle Proterozoic Lower Paleozoic geochronology |
| dc.description.none.fl_txt_mv |
The Sierra de Umango (29°()(),S-68°40'W) was interpreted as part of a northernmost Grenvillian-age rocks of Laurentian-derived terrane, accreted to the southwestern margin of Gondwana. The most important tectono-metamorphic and magmatic processes related to this collision occurred along the N-S trending Famatinian orogen since the Ordovician to Devonian (e.g. Dalla Salda et al., 1992, 1998; Ramos et al., 1998; Astini, 1998; Casquet et al., 2001), overprinting the magmatic and metamorphic rocks already affected by previous Grenvillian history. In this paper we present new U-Pb ages that extends the outcrops of Grenvillian rocks to the north of the well known localities with Mesoproterozoic rocks, and also constrain the age of the subsequent overprinting events. The new ages together with the already existing data, allow us to understand the geological evolution of the Sierra de Vmango in relation to the Lower Paleozoic Famatinian Orogeny. Centro de Investigaciones Geológicas |
| description |
The Sierra de Umango (29°()(),S-68°40'W) was interpreted as part of a northernmost Grenvillian-age rocks of Laurentian-derived terrane, accreted to the southwestern margin of Gondwana. The most important tectono-metamorphic and magmatic processes related to this collision occurred along the N-S trending Famatinian orogen since the Ordovician to Devonian (e.g. Dalla Salda et al., 1992, 1998; Ramos et al., 1998; Astini, 1998; Casquet et al., 2001), overprinting the magmatic and metamorphic rocks already affected by previous Grenvillian history. In this paper we present new U-Pb ages that extends the outcrops of Grenvillian rocks to the north of the well known localities with Mesoproterozoic rocks, and also constrain the age of the subsequent overprinting events. The new ages together with the already existing data, allow us to understand the geological evolution of the Sierra de Vmango in relation to the Lower Paleozoic Famatinian Orogeny. |
| publishDate |
2003 |
| dc.date.none.fl_str_mv |
2003 |
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info:eu-repo/semantics/conferenceObject info:eu-repo/semantics/publishedVersion Objeto de conferencia http://purl.org/coar/resource_type/c_5794 info:ar-repo/semantics/documentoDeConferencia |
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eng |
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