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Regional groundwater modeling of the guarani aquifer system
(2020-09-01)
The Guarani Aquifer System (GAS) is a strategic transboundary aquifer system shared by Brazil, Argentina, Paraguay and Uruguay. This article presents a groundwater flow model to assess the GAS system in terms of regional ...
The mechanism of 234U 238U activity ratio enhancement in karstic limestone groundwater
(Elsevier B.V., 1993-01-05)
Experimental etch/leach of Carboniferous Limestone gravels on a laboratory time-scale has demonstrated that 234U 238U activity ratios (AR's) greater than the radiochemical equilibrium value may be generated on short ...
U-ages in soils and groundwater evidencing wet periods 400-600 kyr ago in southeast Brazil
(Elsevier B.V., 2007-07-01)
U-238 and its radiogenic daughter U-234 have been utilized for dating soil formation and groundwater residence time during the last 1.5 million years, in this case based on the U-clissolution/precipitation occurring during ...
U-ages in soils and groundwater evidencing wet periods 400-600 kyr ago in southeast Brazil
(Elsevier B.V., 2007-07-01)
U-238 and its radiogenic daughter U-234 have been utilized for dating soil formation and groundwater residence time during the last 1.5 million years, in this case based on the U-clissolution/precipitation occurring during ...
Groundwater age and hydrothermalism of confined aquifers in the Argentine Pampean plain
(SpringerOpen, 2017-12)
The Pampean plain of Cordoba province (Argentina) has hydrothermal manifestations linked to Cretaceous depocenters. However, they are in general neither well known nor carefully used, and, in numerous cases, they are ...
Assessing Groundwater Age in Confined Aquifers from the Central Pampean Plain of Córdoba, Argentina
(University of Arizona. Department of Geosciences, 2016-12)
In Córdoba Province, Argentina, the population uses groundwater from confined aquifer systems (CASs) for different activities. Therefore, it is necessary to carry out comprehensive studies in order to plan more sustainable ...
Groundwater flow and residence time in a karst aquifer using ion and isotope characterization
(Springer, 2016-11)
In order to identify the origin of the main processes that affect the composition of groundwater in a karstic aquifer, a hydrogeochemical and isotopic study was carried out of water from numerous observation wells located ...
Hydrogeochemical features and groundwater renewal rate estimates from deep aquifers in the Pampean Plain, Córdoba Province, Argentina.
(Pergamon-Elsevier Science Ltd, 2018-08)
In the Córdoba Province (Argentina), people use groundwater from confined aquifers systems (CAS) for different activities (irrigation, livestock, etc.). Therefore, comprehensive studies for a more sustainable use of these ...