English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Tools annual

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Presents the access of premium content as premium feature

Premium Content

Global: Zendy Plus annual

Global: Zendy Free Plan

ABSTRACT. Recent research projects on the Guarani Aquifer System (GAS-granular), Parana Basin, Brazil, have been evaluating the tectonic control and its hydrogeological potential, flow patterns, chemical properties and environmental protection aspects.One of this projects is the present research that has investigated a structured area in central State of Parana of about 23,000 km2, delimited by coordinates 24◦00’S and 25◦00’S, 51◦00’W and 53◦00’W. The study involves Geographic Information System (GIS) integration of aeromagnetic, geological and structural characterization of lineaments based on Digital Elevation Model (DEM) and Landsat images, hydrogeological and hydrochemical data. Basaltic flows and diabase dikes (NW-SE) of the Serra Geral Formation (Lower Cretaceous) predominate in the studied area. These rocks correspond to the overlying Serra Geral Aquifer System (SGAS-fractured). The purpose of the study is to investigate the structural control on both flow and chemism of SGAS groundwater and also to identify fractures that might represent hydraulic connectivity zones to the underlying GAS. Processing and interpretation of aeromagnetic data using various techniques, useful for enhancing shallow sources, and integration with further remote sensing and geological data, allowed to outline the regional structural framework, which is characterized by a mosaic of tectonic blocks delimited by NW-SE (diabase dykes) and NE-SW (Parana Basin basement) structures. This magnetic-structural framework was compared with the spatial distribution of hydrogeological and hydrochemical parameters. The integrated interpretations made it possible to recognize the structural control on hydrogeology and hydrochemistry of the SGAS and SAG. The results, presented in a georeferenced map, show the main zones of confinement and/or connection of SGAS and GAS. Keywords : Guarani Aquifer System, Serra Geral Aquifer System, Paran´a Basin, hydraulic connection, aeromagnetometry. RESUMO. Projetos recentes de pesquisa no Sistema Aquifero Guarani (SAG-granular), Bacia do Parana, Brasil, tem avaliado o controle tectonico e seu potencial hidrogeologico, padroes de fluxo, propriedades quimicas e aspectos de protecao ambiental. Um destes projetos e a presente pesquisa, a qual investigou uma area estruturada na regiao central do Estado do Parana, delimitada pelas coordenadas 24◦00’S e 25◦00’S, 51◦00’W e 53◦00’W, com aproximadamente 23.000 km2. O estudo envolve integracoes em Sistema de Informacoes Geograficas (SIG) de dados aeromagneticos, geologicos, estruturais Modelo Digital de Elevacao (MDE) e imagens Landsat, hidrogeologicos e hidroquimicos. Lavas basalticas e diques de diabasio (NW-SE) da Formacao Serra Geral (Cretaceo Inferior) predominam na area estudada. Estas rochas correspondem ao Sistema Aquifero Serra Geral (SASG-fraturado), sobrejacente. O objetivo do estudo ´e investigar o controle estrutural do fluxo e do quimismo das aguas subterrâneas do SASG e identificar tambem fraturas que possam representar zonas de conexao hidraulica com o SAG subjacente. Processamentos e interpretacoes de dados aeromagneticos, a partir de varias tecnicas, e a integracao com dados de outros sensores remotos e geologicos permitiram a composicao de um arcabouco estrutural regional, o qual e caracterizado por um mosaico de blocos tectonicos limitados por estruturas NW-SE (diques de diabasio) e NE-SW (embasamento da Bacia do Parana). Este novo arcabouco magnetico-estrutural foi comparado com a distribuicao espacial dos parâmetros hidrogeologicos e hidroquimicos. A interpretacao integrada permitiu reconhecer o controle estrutural da hidrogeologia/hidroquimica dos SASG e SAG. Os resultados, apresentados em um mapa georreferenciado, mostram as principais zonas de confinamento e/ou conexao dos SASG e SAG. Palavras-chave : Sistema Aquifero Guarani, Sistema Aquifero Serra Geral, Bacia do Parana, conexao hidraulica, aeromagnetometria.

revista brasileira de geofísica

CONNECTIVITY AND MAGNETIC-STRUCTURAL COMPARTMENTALIZATION OF THE SERRA GERAL AND GUARANI AQUIFER SYSTEMS IN CENTRAL STATE OF PARANÁ (PARANÁ BASIN, BRAZIL)