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Induced Polarization as a Proxy for CO2-Rich Groundwater Detection—Evidences from the Ardennes, South-East of Belgium
A review of the geology and origin of CO2 in mineral water springs in east Belgium
δ13C, CO2/3He and 3He/4He ratios reveal the presence of mantle gas in the C02-rich groundwaters of the Ardennes massif (Spa, Belgium)