Drainage morphostructural anomalies of the Rio Salado in Lomadas de Otumpa (Santiago del Estero y Chaco) detected by digital processing

Morphology and dynamics of alluvial fan of Río Salado del Norte are studied and presented. The area is located in the Gran Chaco region (provinces of Chaco and Santiago del Estero, Argentina), within the distal piedmont that evolves from the Andean uplift. Through the integration of digital processi...

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Detalles Bibliográficos
Autores principales:	Peri, Verónica Gisel, Rossello, Eduardo Antonio
Publicado:	2010
Materias:	Argentina Digital mapping Drainage patterns Gran Chaco Neotectonics alluvial fan anomaly digital elevation model digital mapping drainage geomorphology morphostructure neotectonics piedmont satellite imagery topography Chaco [Argentina] Salado Basin Santiago del Estero [Argentina]
Acceso en línea:	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00044822_v66_n4_p634_Peri http://hdl.handle.net/20.500.12110/paper_00044822_v66_n4_p634_Peri
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	paper:paper_00044822_v66_n4_p634_Peri
record_format	dspace
spelling	paper:paper_00044822_v66_n4_p634_Peri2023-06-08T14:26:27Z Drainage morphostructural anomalies of the Rio Salado in Lomadas de Otumpa (Santiago del Estero y Chaco) detected by digital processing Peri, Verónica Gisel Rossello, Eduardo Antonio Argentina Digital mapping Drainage patterns Gran Chaco Neotectonics alluvial fan anomaly digital elevation model digital mapping drainage geomorphology morphostructure neotectonics piedmont satellite imagery topography Argentina Chaco [Argentina] Gran Chaco Salado Basin Santiago del Estero [Argentina] Morphology and dynamics of alluvial fan of Río Salado del Norte are studied and presented. The area is located in the Gran Chaco region (provinces of Chaco and Santiago del Estero, Argentina), within the distal piedmont that evolves from the Andean uplift. Through the integration of digital processing optical satellite imagery and digital elevation model (DEM), it is recognized runoff direction, morphology and relative ages of four groups of the associated paleovalleys. It is also performed a drainage characterization from local deviation anomalies and/or changes in the pattern of courses to fit the structure and/or regional topography, particularly in low relief areas. Thus, there is evidence of two important changes in its dynamics, one gradual regional deviation from its main channel to the south, and a local scale feature associated with the uplift of Lomadas of Otumpa. Thus, these detected anomalies or changes in the hydrological regime, where the ancient alluvial fan was changed, interrupt its natural slope gradually to the end, which is now locally invert in the northwest, and diverts the main course southward, where it flows today. The digital mapping, supplemented by geological knowledge of surface and subsurface, it is an irreplaceable tool in morphostructural interpretation of plain areas with little evident relief and contributes to better natural resource management. Fil:Peri, V.G. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Rossello, E.A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2010 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00044822_v66_n4_p634_Peri http://hdl.handle.net/20.500.12110/paper_00044822_v66_n4_p634_Peri
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	Argentina Digital mapping Drainage patterns Gran Chaco Neotectonics alluvial fan anomaly digital elevation model digital mapping drainage geomorphology morphostructure neotectonics piedmont satellite imagery topography Argentina Chaco [Argentina] Gran Chaco Salado Basin Santiago del Estero [Argentina]
spellingShingle	Argentina Digital mapping Drainage patterns Gran Chaco Neotectonics alluvial fan anomaly digital elevation model digital mapping drainage geomorphology morphostructure neotectonics piedmont satellite imagery topography Argentina Chaco [Argentina] Gran Chaco Salado Basin Santiago del Estero [Argentina] Peri, Verónica Gisel Rossello, Eduardo Antonio Drainage morphostructural anomalies of the Rio Salado in Lomadas de Otumpa (Santiago del Estero y Chaco) detected by digital processing
topic_facet	Argentina Digital mapping Drainage patterns Gran Chaco Neotectonics alluvial fan anomaly digital elevation model digital mapping drainage geomorphology morphostructure neotectonics piedmont satellite imagery topography Argentina Chaco [Argentina] Gran Chaco Salado Basin Santiago del Estero [Argentina]
description	Morphology and dynamics of alluvial fan of Río Salado del Norte are studied and presented. The area is located in the Gran Chaco region (provinces of Chaco and Santiago del Estero, Argentina), within the distal piedmont that evolves from the Andean uplift. Through the integration of digital processing optical satellite imagery and digital elevation model (DEM), it is recognized runoff direction, morphology and relative ages of four groups of the associated paleovalleys. It is also performed a drainage characterization from local deviation anomalies and/or changes in the pattern of courses to fit the structure and/or regional topography, particularly in low relief areas. Thus, there is evidence of two important changes in its dynamics, one gradual regional deviation from its main channel to the south, and a local scale feature associated with the uplift of Lomadas of Otumpa. Thus, these detected anomalies or changes in the hydrological regime, where the ancient alluvial fan was changed, interrupt its natural slope gradually to the end, which is now locally invert in the northwest, and diverts the main course southward, where it flows today. The digital mapping, supplemented by geological knowledge of surface and subsurface, it is an irreplaceable tool in morphostructural interpretation of plain areas with little evident relief and contributes to better natural resource management.
author	Peri, Verónica Gisel Rossello, Eduardo Antonio
author_facet	Peri, Verónica Gisel Rossello, Eduardo Antonio
author_sort	Peri, Verónica Gisel
title	Drainage morphostructural anomalies of the Rio Salado in Lomadas de Otumpa (Santiago del Estero y Chaco) detected by digital processing
title_short	Drainage morphostructural anomalies of the Rio Salado in Lomadas de Otumpa (Santiago del Estero y Chaco) detected by digital processing
title_full	Drainage morphostructural anomalies of the Rio Salado in Lomadas de Otumpa (Santiago del Estero y Chaco) detected by digital processing
title_fullStr	Drainage morphostructural anomalies of the Rio Salado in Lomadas de Otumpa (Santiago del Estero y Chaco) detected by digital processing
title_full_unstemmed	Drainage morphostructural anomalies of the Rio Salado in Lomadas de Otumpa (Santiago del Estero y Chaco) detected by digital processing
title_sort	drainage morphostructural anomalies of the rio salado in lomadas de otumpa (santiago del estero y chaco) detected by digital processing
publishDate	2010
url	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00044822_v66_n4_p634_Peri http://hdl.handle.net/20.500.12110/paper_00044822_v66_n4_p634_Peri
work_keys_str_mv	AT periveronicagisel drainagemorphostructuralanomaliesoftheriosaladoinlomadasdeotumpasantiagodelesteroychacodetectedbydigitalprocessing AT rosselloeduardoantonio drainagemorphostructuralanomaliesoftheriosaladoinlomadasdeotumpasantiagodelesteroychacodetectedbydigitalprocessing
_version_	1768545028742840320

Drainage morphostructural anomalies of the Rio Salado in Lomadas de Otumpa (Santiago del Estero y Chaco) detected by digital processing

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