The groundwater flow in the coastal aquifer system associated with holocenic wind aeolian deposits in the Cassino/RS region

The flow behavior in coastal aquifers can be influenced locally by geological, geomorphological, topographic, hydrogeological, climatic, and anthropic factors. This paper aimed to evaluate the direction and controls of the groundwater flow linked to aeolian sediment layers, which are part of the Coa...

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Detalhes bibliográficos
Autores: Nascimento, Eliege Alves do, Barboza , Eduard oGuimarães, Reginato , Pedro Antonio Roehe, Rosa, Maria Luiza Correa da Câmara, Barili, Rosalia
Tipo de documento: artigo
Estado:Versão publicada
Data de publicação:2023
País:Brasil
Recursos:Associação Brasileira de Águas Subterrâneas
Repositório:Águas Subterrâneas (São Paulo. Online)
Idioma:português
OAI Identifier:oai:ojs.aguassubterraneas.abas.org:article/30202
Acesso em linha:https://aguassubterraneas.abas.org/asubterraneas/article/view/30202
Access Level:Acceso aberto
Palavra-chave:Fluxo de água subterrânea
Hidrogeologia
Aquíferos costeiros.
Groundwater flow
Hydrogeology
Coastal aquifer.
Descrição
Resumo:The flow behavior in coastal aquifers can be influenced locally by geological, geomorphological, topographic, hydrogeological, climatic, and anthropic factors. This paper aimed to evaluate the direction and controls of the groundwater flow linked to aeolian sediment layers, which are part of the Coastal Aquifer System (SAC) present in the Cassino/RS region. Drill holes, water levels, and ground penetrating radar surveys were applied. The results allowed us to characterize the lithologies, analyze the variability of static levels and flow power metrics, and identify the depositional architecture. As result, it was possible to identify that terrain’s morphology, texture, and geotechnical characteristics of the sedimentary deposits, and the stratigraphic stacking pattern of layers are the factors that locally determine the aquifer’s flow. This study contributed to the hydrological knowledge in the region and demonstrated that the water flow, even in regions nearby the coastline, may behave in variable directions.