Chapter 54 The controversial stratigraphy of the glacial deposits in the Tandilia System, Argentina

In the Ediacaran-Cambrian Tandilia System of central Argentina, the glacial origin of the thin (10 m) Sierra del Volcán Formation (Fm.) has been recognized for many years (Spalletti & del Valle 1984), being the first undisputed glacial deposits recorded in the Río de la Plata craton. It consists...

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Autores principales:	Pazos, Pablo Jose, Rapalini, Augusto Ernesto
Publicado:	2011
Materias:	diamictite glacial deposit lithostratigraphy pelite Proterozoic Argentina Buenos Aires [Argentina] Tandilia Range
Acceso en línea:	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_04354052_v36_n1_p565_Pazos http://hdl.handle.net/20.500.12110/paper_04354052_v36_n1_p565_Pazos
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

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spelling	paper:paper_04354052_v36_n1_p565_Pazos2023-06-08T15:41:07Z Chapter 54 The controversial stratigraphy of the glacial deposits in the Tandilia System, Argentina Pazos, Pablo Jose Rapalini, Augusto Ernesto diamictite glacial deposit lithostratigraphy pelite Proterozoic Argentina Buenos Aires [Argentina] Tandilia Range In the Ediacaran-Cambrian Tandilia System of central Argentina, the glacial origin of the thin (10 m) Sierra del Volcán Formation (Fm.) has been recognized for many years (Spalletti & del Valle 1984), being the first undisputed glacial deposits recorded in the Río de la Plata craton. It consists of three units: (i) a basal polymictic diamictite with a kaolin-rich matrix, (ii) a middle pelite with heterolithic levels, undulatory stratification, symmetric ripples, and outsized clasts previously interpreted as dropstones, and (iii) an upper polymictic diamictite with subtle normal grading. Here, this poorly age-constrained formation is reviewed from a stratigraphic and regional context and compared with other putative glaciogenic intervals at the base of the Cerro Largo Fm. and in the Punta Mogotes borehole. © The Geological Society of London 2011. Fil:Pazos, P.J. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Rapalini, A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2011 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_04354052_v36_n1_p565_Pazos http://hdl.handle.net/20.500.12110/paper_04354052_v36_n1_p565_Pazos
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	diamictite glacial deposit lithostratigraphy pelite Proterozoic Argentina Buenos Aires [Argentina] Tandilia Range
spellingShingle	diamictite glacial deposit lithostratigraphy pelite Proterozoic Argentina Buenos Aires [Argentina] Tandilia Range Pazos, Pablo Jose Rapalini, Augusto Ernesto Chapter 54 The controversial stratigraphy of the glacial deposits in the Tandilia System, Argentina
topic_facet	diamictite glacial deposit lithostratigraphy pelite Proterozoic Argentina Buenos Aires [Argentina] Tandilia Range
description	In the Ediacaran-Cambrian Tandilia System of central Argentina, the glacial origin of the thin (10 m) Sierra del Volcán Formation (Fm.) has been recognized for many years (Spalletti & del Valle 1984), being the first undisputed glacial deposits recorded in the Río de la Plata craton. It consists of three units: (i) a basal polymictic diamictite with a kaolin-rich matrix, (ii) a middle pelite with heterolithic levels, undulatory stratification, symmetric ripples, and outsized clasts previously interpreted as dropstones, and (iii) an upper polymictic diamictite with subtle normal grading. Here, this poorly age-constrained formation is reviewed from a stratigraphic and regional context and compared with other putative glaciogenic intervals at the base of the Cerro Largo Fm. and in the Punta Mogotes borehole. © The Geological Society of London 2011.
author	Pazos, Pablo Jose Rapalini, Augusto Ernesto
author_facet	Pazos, Pablo Jose Rapalini, Augusto Ernesto
author_sort	Pazos, Pablo Jose
title	Chapter 54 The controversial stratigraphy of the glacial deposits in the Tandilia System, Argentina
title_short	Chapter 54 The controversial stratigraphy of the glacial deposits in the Tandilia System, Argentina
title_full	Chapter 54 The controversial stratigraphy of the glacial deposits in the Tandilia System, Argentina
title_fullStr	Chapter 54 The controversial stratigraphy of the glacial deposits in the Tandilia System, Argentina
title_full_unstemmed	Chapter 54 The controversial stratigraphy of the glacial deposits in the Tandilia System, Argentina
title_sort	chapter 54 the controversial stratigraphy of the glacial deposits in the tandilia system, argentina
publishDate	2011
url	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_04354052_v36_n1_p565_Pazos http://hdl.handle.net/20.500.12110/paper_04354052_v36_n1_p565_Pazos
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Chapter 54 The controversial stratigraphy of the glacial deposits in the Tandilia System, Argentina

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