Imaging the sedimentary basin of the Tucumán Plain in the northern Pampean Ranges, Argentina

The Pampean Ranges (PR) of Argentina are a region of active thick-skinned deformation between stable cratonic South America and the Andes. The Tucumán Plain (TP) at the northern end of the PR lies just west of the most easterly active faults. In 1998, we collected 18 wideband magnetotelluric (MT) si...

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Autores principales: Pomposiello, Maria Cristina, Favetto, Alicia Beatriz, Sainato, Claudia Mabel
Publicado: 2002
Materias:
Pampean Ranges
Sedimentary basin
Tucumáin Plain
Catchments
Deformation
Electric fields
Imaging techniques
Tectonics
Geothermal reservoirs
Geophysics
electrical resistivity
geological structure
imaging method
sedimentary basin
tectonic setting
time series analysis
Argentina
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_09269851_v49_n1-2_p47_Pomposiello
http://hdl.handle.net/20.500.12110/paper_09269851_v49_n1-2_p47_Pomposiello
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id paper:paper_09269851_v49_n1-2_p47_Pomposiello
record_format dspace
spelling paper:paper_09269851_v49_n1-2_p47_Pomposiello2023-06-08T15:51:45Z Imaging the sedimentary basin of the Tucumán Plain in the northern Pampean Ranges, Argentina Pomposiello, Maria Cristina Favetto, Alicia Beatriz Sainato, Claudia Mabel Pampean Ranges Sedimentary basin Tucumáin Plain Catchments Deformation Electric fields Imaging techniques Tectonics Geothermal reservoirs Geophysics electrical resistivity geological structure imaging method sedimentary basin tectonic setting time series analysis Argentina The Pampean Ranges (PR) of Argentina are a region of active thick-skinned deformation between stable cratonic South America and the Andes. The Tucumán Plain (TP) at the northern end of the PR lies just west of the most easterly active faults. In 1998, we collected 18 wideband magnetotelluric (MT) sites along two east-west (E-W) transects across the TP. The northern transect is along 27°10′S. The southern transect, along 27°39′S, crosses a widespread, low-temperature geothermal reservoir. Inversion of the data with electrical field polarized perpendicular to strike reveals a basin extending to a depth greater than 4 km, whose lower limit is consistent with the tectonic setting. Within the basin is a shallow low-resistive layer approximately 700 m deep, which correlates with the Pliocene Araucanense Formation. This overlies a much more conductive body representing a highly salty Miocene Formation (Calchaquense). © 2002 Elsevier Science B.V. All rights reserved. Fil:Pomposiello, M.Cristina Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Favetto, A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Sainato, C. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2002 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_09269851_v49_n1-2_p47_Pomposiello http://hdl.handle.net/20.500.12110/paper_09269851_v49_n1-2_p47_Pomposiello
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Pampean Ranges
Sedimentary basin
Tucumáin Plain
Catchments
Deformation
Electric fields
Imaging techniques
Tectonics
Geothermal reservoirs
Geophysics
electrical resistivity
geological structure
imaging method
sedimentary basin
tectonic setting
time series analysis
Argentina
spellingShingle Pampean Ranges
Sedimentary basin
Tucumáin Plain
Catchments
Deformation
Electric fields
Imaging techniques
Tectonics
Geothermal reservoirs
Geophysics
electrical resistivity
geological structure
imaging method
sedimentary basin
tectonic setting
time series analysis
Argentina
Pomposiello, Maria Cristina
Favetto, Alicia Beatriz
Sainato, Claudia Mabel
Imaging the sedimentary basin of the Tucumán Plain in the northern Pampean Ranges, Argentina
topic_facet Pampean Ranges
Sedimentary basin
Tucumáin Plain
Catchments
Deformation
Electric fields
Imaging techniques
Tectonics
Geothermal reservoirs
Geophysics
electrical resistivity
geological structure
imaging method
sedimentary basin
tectonic setting
time series analysis
Argentina
description The Pampean Ranges (PR) of Argentina are a region of active thick-skinned deformation between stable cratonic South America and the Andes. The Tucumán Plain (TP) at the northern end of the PR lies just west of the most easterly active faults. In 1998, we collected 18 wideband magnetotelluric (MT) sites along two east-west (E-W) transects across the TP. The northern transect is along 27°10′S. The southern transect, along 27°39′S, crosses a widespread, low-temperature geothermal reservoir. Inversion of the data with electrical field polarized perpendicular to strike reveals a basin extending to a depth greater than 4 km, whose lower limit is consistent with the tectonic setting. Within the basin is a shallow low-resistive layer approximately 700 m deep, which correlates with the Pliocene Araucanense Formation. This overlies a much more conductive body representing a highly salty Miocene Formation (Calchaquense). © 2002 Elsevier Science B.V. All rights reserved.
author Pomposiello, Maria Cristina
Favetto, Alicia Beatriz
Sainato, Claudia Mabel
author_facet Pomposiello, Maria Cristina
Favetto, Alicia Beatriz
Sainato, Claudia Mabel
author_sort Pomposiello, Maria Cristina
title Imaging the sedimentary basin of the Tucumán Plain in the northern Pampean Ranges, Argentina
title_short Imaging the sedimentary basin of the Tucumán Plain in the northern Pampean Ranges, Argentina
title_full Imaging the sedimentary basin of the Tucumán Plain in the northern Pampean Ranges, Argentina
title_fullStr Imaging the sedimentary basin of the Tucumán Plain in the northern Pampean Ranges, Argentina
title_full_unstemmed Imaging the sedimentary basin of the Tucumán Plain in the northern Pampean Ranges, Argentina
title_sort imaging the sedimentary basin of the tucumán plain in the northern pampean ranges, argentina
publishDate 2002
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_09269851_v49_n1-2_p47_Pomposiello
http://hdl.handle.net/20.500.12110/paper_09269851_v49_n1-2_p47_Pomposiello
work_keys_str_mv AT pomposiellomariacristina imagingthesedimentarybasinofthetucumanplaininthenorthernpampeanrangesargentina
AT favettoaliciabeatriz imagingthesedimentarybasinofthetucumanplaininthenorthernpampeanrangesargentina
AT sainatoclaudiamabel imagingthesedimentarybasinofthetucumanplaininthenorthernpampeanrangesargentina
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