The Ensenada and Buenos Aires formations (Pleistocene) in a quarry near La Plata, Argentina

An interdisciplinary study of a section in a quarry near La Plata sheds new light on the geologic, climatic, and biologic evolution of the northeastern Pampean area of Argentina. The stratigraphic succession is composed of seven mainly colian levels, each one including a soil and separated by a disc...

Descripción completa

Guardado en:
Detalles Bibliográficos
Autores principales: Nabel, Paulina E., Etchichury, María C., Tofalo, Ofelia Rita de las Mercedes, Vargas, Daniel
Publicado: 1999
Materias:
paleoenvironment
Pleistocene
stratigraphy
Argentina
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_08959811_v12_n3_p273_Tonni
http://hdl.handle.net/20.500.12110/paper_08959811_v12_n3_p273_Tonni
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id paper:paper_08959811_v12_n3_p273_Tonni
record_format dspace
spelling paper:paper_08959811_v12_n3_p273_Tonni2023-06-08T15:48:08Z The Ensenada and Buenos Aires formations (Pleistocene) in a quarry near La Plata, Argentina Nabel, Paulina E. Etchichury, María C. Tofalo, Ofelia Rita de las Mercedes Vargas, Daniel paleoenvironment Pleistocene stratigraphy Argentina An interdisciplinary study of a section in a quarry near La Plata sheds new light on the geologic, climatic, and biologic evolution of the northeastern Pampean area of Argentina. The stratigraphic succession is composed of seven mainly colian levels, each one including a soil and separated by a disconformity. Two geosols defined in northern Buenos Aires Province (Hisisa and El Tala) are identified in the Ensenada Formation. The boundary between the Ensenada and Buenos Aires formations is defined by a conspicuous disconformity which overlies the El Tala Geosol. In the section, the boundary between the Tolypeutes pampaeus (Ensenadan) and Megatherium americanum (lower Lujanian) biozones coincides with that of Ensenada and Buenos Aires formations. The boundary between the Matuyama and Brunhes zones of polarity occurs in the upper part of the Ensenada Formation above the Hisisa Geosol. According to geologic evidence, most of the succession was deposited under semiarid to arid climate. Fil:Nabel, P. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Etchichury, M. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Tófalo, R. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Vargas, D. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 1999 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_08959811_v12_n3_p273_Tonni http://hdl.handle.net/20.500.12110/paper_08959811_v12_n3_p273_Tonni
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic paleoenvironment
Pleistocene
stratigraphy
Argentina
spellingShingle paleoenvironment
Pleistocene
stratigraphy
Argentina
Nabel, Paulina E.
Etchichury, María C.
Tofalo, Ofelia Rita de las Mercedes
Vargas, Daniel
The Ensenada and Buenos Aires formations (Pleistocene) in a quarry near La Plata, Argentina
topic_facet paleoenvironment
Pleistocene
stratigraphy
Argentina
description An interdisciplinary study of a section in a quarry near La Plata sheds new light on the geologic, climatic, and biologic evolution of the northeastern Pampean area of Argentina. The stratigraphic succession is composed of seven mainly colian levels, each one including a soil and separated by a disconformity. Two geosols defined in northern Buenos Aires Province (Hisisa and El Tala) are identified in the Ensenada Formation. The boundary between the Ensenada and Buenos Aires formations is defined by a conspicuous disconformity which overlies the El Tala Geosol. In the section, the boundary between the Tolypeutes pampaeus (Ensenadan) and Megatherium americanum (lower Lujanian) biozones coincides with that of Ensenada and Buenos Aires formations. The boundary between the Matuyama and Brunhes zones of polarity occurs in the upper part of the Ensenada Formation above the Hisisa Geosol. According to geologic evidence, most of the succession was deposited under semiarid to arid climate.
author Nabel, Paulina E.
Etchichury, María C.
Tofalo, Ofelia Rita de las Mercedes
Vargas, Daniel
author_facet Nabel, Paulina E.
Etchichury, María C.
Tofalo, Ofelia Rita de las Mercedes
Vargas, Daniel
author_sort Nabel, Paulina E.
title The Ensenada and Buenos Aires formations (Pleistocene) in a quarry near La Plata, Argentina
title_short The Ensenada and Buenos Aires formations (Pleistocene) in a quarry near La Plata, Argentina
title_full The Ensenada and Buenos Aires formations (Pleistocene) in a quarry near La Plata, Argentina
title_fullStr The Ensenada and Buenos Aires formations (Pleistocene) in a quarry near La Plata, Argentina
title_full_unstemmed The Ensenada and Buenos Aires formations (Pleistocene) in a quarry near La Plata, Argentina
title_sort ensenada and buenos aires formations (pleistocene) in a quarry near la plata, argentina
publishDate 1999
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_08959811_v12_n3_p273_Tonni
http://hdl.handle.net/20.500.12110/paper_08959811_v12_n3_p273_Tonni
work_keys_str_mv AT nabelpaulinae theensenadaandbuenosairesformationspleistoceneinaquarrynearlaplataargentina
AT etchichurymariac theensenadaandbuenosairesformationspleistoceneinaquarrynearlaplataargentina
AT tofaloofeliaritadelasmercedes theensenadaandbuenosairesformationspleistoceneinaquarrynearlaplataargentina
AT vargasdaniel theensenadaandbuenosairesformationspleistoceneinaquarrynearlaplataargentina
AT nabelpaulinae ensenadaandbuenosairesformationspleistoceneinaquarrynearlaplataargentina
AT etchichurymariac ensenadaandbuenosairesformationspleistoceneinaquarrynearlaplataargentina
AT tofaloofeliaritadelasmercedes ensenadaandbuenosairesformationspleistoceneinaquarrynearlaplataargentina
AT vargasdaniel ensenadaandbuenosairesformationspleistoceneinaquarrynearlaplataargentina
_version_ 1768541710113046528

Ejemplares similares