A migracao de constituintes ionicos no aquifero Barreiras na regiao sul de Natal-RN, decorrente do quadro estrutural local; uma hipotese de trabalho  [Tectonics and ion migration in the Barrerias Aquifer (southern Natal, Rio Grande do Norte, Brazil); a working hypothesis]

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Alternate Title:Tectonics and ion migration in the Barrerias Aquifer (southern Natal, Rio Grande do Norte, Brazil); a working hypothesis
Authors:de Lucena, Leandson Roberto F.; da Rosa Filho, Ernani Francisco; Bittencourt, Andre Virmond Lima; Montaño, Jorge Xavier
Author Affiliations:Primary:
Universidade Federal do Parana, Curitiba, Brazil
Universidad de la Republica Oriental del Uruguay, Uruguay
Volume Title:Revista Latino-Americana de Hidrogeologia
Source:Revista Latino-Americana de Hidrogeologia, Vol.4, p.9-16. Publisher: Asociación Latino-Americana de Hidrogeologia Subterránea para el Desarollo, Curitiba, Brazil
Publication Date:2004
Note:In Portuguese with English summary. 6 refs.; illus., incl. 1 table, geol. sketch map
Summary:The contamination of porous aquifers arising from in-natura urban sewage and the usage of fertilizers is a reason of concern of several studies in the last decades. Such concern is due to the expansion of urban areas with no sewage system, the increasing demand for food production and the need to preserve the quality of the underground water resources. The studies so far mainly investigate the in situ contamination of these underground resources. In the present paper, we investigate the eventual migration of ionic constituants in the saturated underground porous media, which is structurally controlled in sedimentary terrains. This migration process can be a result of: structurally controlled underground flow and abrupt variations of the saturated thickness, together with favourable piezometric height of the terrain. In this case, due to human activities, some ionic constituants can have a reasonable high mobility and may eventually reach areas thought to be of low risk of contamination. Examples of this structural-hydrochemical interaction are now the target of research in the Barreiras Aquifer, in NE Brazil.
Subjects:Aquifers; Barreiras Formation; Basement; Bedrock; Cenozoic; Chemical composition; Controls; Deformation; Electrical conductivity; Faults; Fertilizers; Geochemistry; Ground water; Human activity; Hydrochemistry; Hydrology; Ions; Lineaments; Metamorphic rocks; Movement; Pollution; Porosity; Precambrian; Proterozoic; Saturated materials; Sedimentary rocks; Sewage; Tectonics; Tertiary; Upper Precambrian; Urban environment; Water resources; Brazil; Rio Grande do Norte Brazil; South America; Natal Brazil
Coordinates:S060000 S054500 W0350000 W0353000
Record ID:2004072862
Copyright Information:GeoRef, Copyright 2020 American Geosciences Institute.
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