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Hydrogeochemical and isotopic indicators of vulnerability and sustainability in the GAS aquifer, São Paulo State, Brazil
(2017-12-01)
Study region The Guarani Aquifer System (GAS), São Paulo State, Brazil, an important freshwater resource regionally and part of a giant, transboundary system. Study focus Groundwaters have been sampled along a transect. ...
Comparative analysis among eletrical resistivity tomography arrays in the reconnaissance of flow structure in fractures aquifer in caçapava do sul (RS)Análise comparativa entre arranjos de tomografia elétrica no reconhecimento de estruturas de fluxo em aquífero fraturado em caçapava do sul (rs)
(2019-01-01)
This paper performs presents a comparative analysis between data from detailed electrical resistivity tomography data acquired through the dipole-dipole, Schlumberger and Wenner arrays of detail, obtained on a ground where ...
Multi-isotope (δ 2H, δ 18O, δ 13C-TDIC, δ 18O-TDIC, 87Sr/86Sr) and hydrochemical study on fractured-karstic and detritic shallow aquifers in the Pampean region, Argentina
(Taylor & Francis Ltd, 2020-09)
Fluxes between fractured-karstified and detritic aquifers are commonly poorly understood in many environments. These two types of aquifers are in contact in the southeastern Pampean region in the Argentine Buenos Aires ...
Análise da recarga e da conexão hidráulica do sistema aquífero granular-fissural no campus Pampulha da UFMG, Belo Horizonte, MG
(Universidade Federal de Minas GeraisUFMG, 2013-12-23)
This paper was analyzed the recharge and hydraulic connection between the aquifers granular and fractured of aquifer system UFMG campus Pampulha in Belo Horizonte, Minas Gerais. In the area, the granular aquifer is free, ...
An alternative approach to designing hydrogeological conceptual models in cases of scarce field data
(2021-11-01)
The sensitivity of the derivative analysis to the variation of flow rates allows it to solve ambiguities, provide diagnostics of the flow dimension, and identify the boundary conditions of the tested aquifer. Based on the ...
Groundwater resources and recharge processes in the Western Andean Front of Central Chile
(ELSEVIER, 2020)
In Central Chile, the increment of withdrawals together with drought conditions has exposed the poor understanding of the regional hydrogeological system. In this study, we addressed theWestern Andean Front hydrogeology ...
Geophysical and Structural Survey in the Diagnosis of Leaks at a Fuel Station in a Uranium Mine in Decommissioning Phase (Poços de Caldas, Brazil)
(2021-09-01)
Mining enterprises are, in essence, landscape modifiers and sources of long-term environmental degradation. The development of activities within the mines requires a complex logistical system for better functioning. It is ...
Derivative analysis of pumping tests carried out in fractured aquifers in the Jundiaí Municipality – State of São Paulo, BrazilAnálise derivativa de testes de bombeamento em aquíferos fissurais no município de Jundiaí/SP
(Instituto Geológico, Secretaria do Meio Ambiente, São Paulo, 2020)
A comparative study of aquifer systems occurring at the Paraná sedimentary basin, Brazil: U-isotopes contribution
(2013-01-01)
The radioactivity due to 238U and 234U in three aquifer systems occurring within the Paraná sedimentary basin, South America, has been investigated. Uranium is much less dissolved from fractured igneous rocks than from the ...
Groundwater favorability map using GIS multicriteria data analysis on crystalline terrain, Sao Paulo State, Brazil
(ELSEVIER SCIENCE BV, 2008)
This paper presents the groundwater favorability mapping on a fractured terrain in the eastern portion of Sao Paulo State, Brazil. Remote sensing, airborne geophysical data, photogeologic interpretation, geologic and ...