Structural interpretation of the northern flatslab zone from magnetic data. Precordillera of San Juan and La Rioja

The Andean region between -28° to -31° of latitude included the transition of geological provinces: Front Range, Western Sierras Pampeanas and Precordillera in the provinces of San Juan and La Rioja. The geological evolution and the compressive tectonic regime in the area could have made its mark in...

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Detalles Bibliográficos
Autor principal: Folguera, Andrés
Publicado: 2016
Materias:
Filter
Magnetic data
Precordillera
Werner deconvolution method
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03267237_v40_n2_p98_Sanchez
http://hdl.handle.net/20.500.12110/paper_03267237_v40_n2_p98_Sanchez
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id paper:paper_03267237_v40_n2_p98_Sanchez
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spelling paper:paper_03267237_v40_n2_p98_Sanchez2023-06-08T15:33:07Z Structural interpretation of the northern flatslab zone from magnetic data. Precordillera of San Juan and La Rioja Folguera, Andrés Filter Magnetic data Precordillera Werner deconvolution method The Andean region between -28° to -31° of latitude included the transition of geological provinces: Front Range, Western Sierras Pampeanas and Precordillera in the provinces of San Juan and La Rioja. The geological evolution and the compressive tectonic regime in the area could have made its mark in areas where micro-continents collided and amalgamated, identified as suture zones. From a base of magnetic data collected from different types (air and land) sources and acquired at different times, a series of geophysical reductions in order to obtain a single homogeneous database was applied. At the map of Total Magnetic Anomaly obtained, we applied two different methods of filtering: Analytic Upward Continuation and Frequency. Finally, on cross sections toward East - West, solutions from 2D Werner deconvolution - with results consistent with the existing models for Precordillera and it structure - were calculated. We have interpreted the arrangement of units with different magnetic susceptibility correlating these with the configuration of Paleozoic "terranes" amalgamated in this region. The location of Werner solutions allowed us to recognize the behavior in depth of the exposed structures. © 2015 Asociación Argentina de Geofísicos y Geodestas. Fil:Folguera, A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2016 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03267237_v40_n2_p98_Sanchez http://hdl.handle.net/20.500.12110/paper_03267237_v40_n2_p98_Sanchez
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Filter
Magnetic data
Precordillera
Werner deconvolution method
spellingShingle Filter
Magnetic data
Precordillera
Werner deconvolution method
Folguera, Andrés
Structural interpretation of the northern flatslab zone from magnetic data. Precordillera of San Juan and La Rioja
topic_facet Filter
Magnetic data
Precordillera
Werner deconvolution method
description The Andean region between -28° to -31° of latitude included the transition of geological provinces: Front Range, Western Sierras Pampeanas and Precordillera in the provinces of San Juan and La Rioja. The geological evolution and the compressive tectonic regime in the area could have made its mark in areas where micro-continents collided and amalgamated, identified as suture zones. From a base of magnetic data collected from different types (air and land) sources and acquired at different times, a series of geophysical reductions in order to obtain a single homogeneous database was applied. At the map of Total Magnetic Anomaly obtained, we applied two different methods of filtering: Analytic Upward Continuation and Frequency. Finally, on cross sections toward East - West, solutions from 2D Werner deconvolution - with results consistent with the existing models for Precordillera and it structure - were calculated. We have interpreted the arrangement of units with different magnetic susceptibility correlating these with the configuration of Paleozoic "terranes" amalgamated in this region. The location of Werner solutions allowed us to recognize the behavior in depth of the exposed structures. © 2015 Asociación Argentina de Geofísicos y Geodestas.
author Folguera, Andrés
author_facet Folguera, Andrés
author_sort Folguera, Andrés
title Structural interpretation of the northern flatslab zone from magnetic data. Precordillera of San Juan and La Rioja
title_short Structural interpretation of the northern flatslab zone from magnetic data. Precordillera of San Juan and La Rioja
title_full Structural interpretation of the northern flatslab zone from magnetic data. Precordillera of San Juan and La Rioja
title_fullStr Structural interpretation of the northern flatslab zone from magnetic data. Precordillera of San Juan and La Rioja
title_full_unstemmed Structural interpretation of the northern flatslab zone from magnetic data. Precordillera of San Juan and La Rioja
title_sort structural interpretation of the northern flatslab zone from magnetic data. precordillera of san juan and la rioja
publishDate 2016
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03267237_v40_n2_p98_Sanchez
http://hdl.handle.net/20.500.12110/paper_03267237_v40_n2_p98_Sanchez
work_keys_str_mv AT folgueraandres structuralinterpretationofthenorthernflatslabzonefrommagneticdataprecordilleraofsanjuanandlarioja
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