Aquifers 2 Argentina 2 Carbon dioxide 2 Discharge (fluid mechanics) 2 Environmental isotopes 2 Evaporation 2 Flow modeling 2 Groundwater flow 2 Groundwater resources 2 Hydro geochemistries 2 Hydrochemistry 2 Hydrogeochemistry 2 Isotopes Lakes 2 Numerical models 2 Pampas 2 Phase transitions 2 Rain 2 Recharging (underground waters) 2 Shallow lake 2 Shallow lakes 2 Water balance 2 Water supply 2 flow modeling 2 groundwater flow 2 groundwater-surface water interaction 2 hydrogeochemistry 2 hydrogeology 2 quantitative analysis 2 recharge 2