The definition of the western boundary of the Guarani Aquifer System (Gran Chaco, Argentina): Technical or conventional?

Unlike the eastern, northern and southern borders of the Guarani aquifer system (GAS), which extends beneath considerable regions of Argentina, Brazil, Paraguay and Uruguay, the western boundary, within the Gran Chaco, has no clear hydrogeologic definition that can be recognized at either the surfac...

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Detalles Bibliográficos
Autor principal: Rossello, Eduardo Antonio
Publicado: 2012
Materias:
Boundary
Gran Chaco (Argentina)
Guaraní Aquifer System
administrative boundary
aquifer
border region
conservation management
hydrogeology
water economics
water management
water use
Argentina
Brazil
Gran Chaco
Guarani Aquifer
Paraguay
Santiago del Estero [Argentina]
Uruguay
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03660176_v123_n3_p297_Rossello
http://hdl.handle.net/20.500.12110/paper_03660176_v123_n3_p297_Rossello
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id paper:paper_03660176_v123_n3_p297_Rossello
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spelling paper:paper_03660176_v123_n3_p297_Rossello2023-06-08T15:36:00Z The definition of the western boundary of the Guarani Aquifer System (Gran Chaco, Argentina): Technical or conventional? Rossello, Eduardo Antonio Boundary Gran Chaco (Argentina) Guaraní Aquifer System administrative boundary aquifer border region conservation management hydrogeology water economics water management water use Argentina Brazil Gran Chaco Guarani Aquifer Paraguay Santiago del Estero [Argentina] Uruguay Unlike the eastern, northern and southern borders of the Guarani aquifer system (GAS), which extends beneath considerable regions of Argentina, Brazil, Paraguay and Uruguay, the western boundary, within the Gran Chaco, has no clear hydrogeologic definition that can be recognized at either the surface or subsurface. For this reason, the precise location of the aquifer in this area is open to many different possibilities, depending upon the factors or interests involved. Thus technical specialists have proposed locations that include or exclude, according to their own criteria, large sections of the Argentine Gran Chaco, the management and use of which, from an administrative point of view, imply diverse economic consequences. The Lomadas de Otumpa, located near the border between the Santiago del Estero and Chaco provinces, are gently sloping hills, rising to a height of no more than 110 m above the wide expanse of surrounding plains comprising the Gran Chaco. They trend NNE and are 200 km long and from 20 to 80 km in width, reflecting the presence of the regional Otumpa alignment. The Lomadas de Otumpa are clearly defined at the surface and thus they allow a geographical boundary to be imposed on the GAS sequences according to: i) their notable structural features at the surface, and ii) the close matching of the thinning and/or absence of the associated sedimentary record underground. Because the definition of the limits of the GAS has an influence on its evaluation, management, use and conservation, both at a technical and administrative level, it is of great importance to ascertain its hydrogeologic boundaries. Fil:Rossello, E.A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2012 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03660176_v123_n3_p297_Rossello http://hdl.handle.net/20.500.12110/paper_03660176_v123_n3_p297_Rossello
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Boundary
Gran Chaco (Argentina)
Guaraní Aquifer System
administrative boundary
aquifer
border region
conservation management
hydrogeology
water economics
water management
water use
Argentina
Brazil
Gran Chaco
Guarani Aquifer
Paraguay
Santiago del Estero [Argentina]
Uruguay
spellingShingle Boundary
Gran Chaco (Argentina)
Guaraní Aquifer System
administrative boundary
aquifer
border region
conservation management
hydrogeology
water economics
water management
water use
Argentina
Brazil
Gran Chaco
Guarani Aquifer
Paraguay
Santiago del Estero [Argentina]
Uruguay
Rossello, Eduardo Antonio
The definition of the western boundary of the Guarani Aquifer System (Gran Chaco, Argentina): Technical or conventional?
topic_facet Boundary
Gran Chaco (Argentina)
Guaraní Aquifer System
administrative boundary
aquifer
border region
conservation management
hydrogeology
water economics
water management
water use
Argentina
Brazil
Gran Chaco
Guarani Aquifer
Paraguay
Santiago del Estero [Argentina]
Uruguay
description Unlike the eastern, northern and southern borders of the Guarani aquifer system (GAS), which extends beneath considerable regions of Argentina, Brazil, Paraguay and Uruguay, the western boundary, within the Gran Chaco, has no clear hydrogeologic definition that can be recognized at either the surface or subsurface. For this reason, the precise location of the aquifer in this area is open to many different possibilities, depending upon the factors or interests involved. Thus technical specialists have proposed locations that include or exclude, according to their own criteria, large sections of the Argentine Gran Chaco, the management and use of which, from an administrative point of view, imply diverse economic consequences. The Lomadas de Otumpa, located near the border between the Santiago del Estero and Chaco provinces, are gently sloping hills, rising to a height of no more than 110 m above the wide expanse of surrounding plains comprising the Gran Chaco. They trend NNE and are 200 km long and from 20 to 80 km in width, reflecting the presence of the regional Otumpa alignment. The Lomadas de Otumpa are clearly defined at the surface and thus they allow a geographical boundary to be imposed on the GAS sequences according to: i) their notable structural features at the surface, and ii) the close matching of the thinning and/or absence of the associated sedimentary record underground. Because the definition of the limits of the GAS has an influence on its evaluation, management, use and conservation, both at a technical and administrative level, it is of great importance to ascertain its hydrogeologic boundaries.
author Rossello, Eduardo Antonio
author_facet Rossello, Eduardo Antonio
author_sort Rossello, Eduardo Antonio
title The definition of the western boundary of the Guarani Aquifer System (Gran Chaco, Argentina): Technical or conventional?
title_short The definition of the western boundary of the Guarani Aquifer System (Gran Chaco, Argentina): Technical or conventional?
title_full The definition of the western boundary of the Guarani Aquifer System (Gran Chaco, Argentina): Technical or conventional?
title_fullStr The definition of the western boundary of the Guarani Aquifer System (Gran Chaco, Argentina): Technical or conventional?
title_full_unstemmed The definition of the western boundary of the Guarani Aquifer System (Gran Chaco, Argentina): Technical or conventional?
title_sort definition of the western boundary of the guarani aquifer system (gran chaco, argentina): technical or conventional?
publishDate 2012
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03660176_v123_n3_p297_Rossello
http://hdl.handle.net/20.500.12110/paper_03660176_v123_n3_p297_Rossello
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