Produção Nacional
Compartimentação hidroestrutural e aptidões químicas do Sistema Aquífero Serra Geral no estado do Paraná
2012; Sociedade Brasileira de Geologia; Volume: 42; Issue: s1 Linguagem: Inglês
10.5327/z0375-75362012000500014
ISSN2177-4382
AutoresGustavo Barbosa Athayde, Camila de Vasconcelos Müller Athayde, Ernani Francisco da Rosa Filho,
Tópico(s)Groundwater and Isotope Geochemistry
ResumoThe ability of Serra Geral Aquifer System in the state of Paraná, to public supply and the water chemistry, demonstrate the strategic importance of this aquifer. The main objective of this study was to characterize the Serra Geral Aquifer System in the State of Paraná by hydrostructural aspects and regional hydrochemical (in natura for public supply and irrigation). The potentiometric surface identified the geographic coincidence, on a regional scale, between surface water and groundwater basins. Considering the full exposed area in the Paraná State, the regional groundwater flow is from east to west, towards the discharge areas located along the rivers Parana (principal discharge area) and Paranapanema, respectively. The geometric mean values of flow is 21.5 m3.h-1. Two Hydrostructural Provinces were proposed considering flow and specific capacity. Most productive wells are located northwest of Jacutinga Lineament and the least productive southeast. Four 'Hydrostructural Compartments' were delimited from the two Hydrostructural Provinces. A total of 337 water samples were analyzed. The predominant water type is Ca+2 - HCO3- (198 samples); secondarily Na+ - HCO3- (50 samples), followed by Ca+2 - MG+2 - HCO3- (25 samples), Na+ - CO3-2 (23 samples), Ca+2 - Na+ - HCO3- (19 samples), Na+ - Ca+2 - HCO3- (13 samples). Other waters types occurs: Na+ - HCO3- - SO4-2, Na+ - CO3-2 - HCO3-, Na+ - SO4-2, Mg+2 -Ca+2 - HCO3-, NO3- - Na+ - HCO3-, Ca+2 - Na+ - NO3-. Understanding the structural and hydrogeological significantly reduce exploration risk.
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