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...

Descripción completa

Guardado en:
Detalles Bibliográficos
Autores principales: Pazos, P.J., Rapalini, A.
Formato: SER
Materias:
diamictite
glacial deposit
lithostratigraphy
pelite
Proterozoic
Argentina
Buenos Aires [Argentina]
Tandilia Range
Acceso en línea: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
id todo:paper_04354052_v36_n1_p565_Pazos
record_format dspace
spelling todo:paper_04354052_v36_n1_p565_Pazos2023-10-03T15:34:05Z Chapter 54 The controversial stratigraphy of the glacial deposits in the Tandilia System, Argentina Pazos, P.J. Rapalini, A. 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. SER info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar 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, P.J.
Rapalini, A.
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.
format SER
author Pazos, P.J.
Rapalini, A.
author_facet Pazos, P.J.
Rapalini, A.
author_sort Pazos, P.J.
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
url http://hdl.handle.net/20.500.12110/paper_04354052_v36_n1_p565_Pazos
work_keys_str_mv AT pazospj chapter54thecontroversialstratigraphyoftheglacialdepositsinthetandiliasystemargentina
AT rapalinia chapter54thecontroversialstratigraphyoftheglacialdepositsinthetandiliasystemargentina
_version_ 1807319446896771072

Ejemplares similares