Dating groundwater

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The radiogenic noble gas components seawater that has been modified by later water–rock interaction.

Furthermore, as the obtained tracer ages cover several glacial cycles, we discuss the impact of the glacial cycles on flow patterns in the studied aquifer system. Gerber, Christoph, Vaikmae, Rein, Aeschbach, Werner, Babre, Alise, Jiang, Wei, Leuenberger, Markus, Lu, Zheng -Tian, Mokrik, Robert, Muller, Peter, Raidla, Valle, Saks, Tomas, Waber, H.

The influence of fish ponds and salinization on groundwater quality in the multi-layer coastal aquifer system in Israel. C concentrations in the Judea Group aquifer range from 62 to 95 p MC.

Darcy calculations suggest that the aquifers contain young waters, ≃50 yr in age.

Based on the chemical and noble gas concentrations and the dating results, we conclude that the brine originates from evaporated seawater that has been modified by later water-rock interaction.

As the obtained tracer ages cover several glacial cycles, we discuss the impact of the glacial cycles on flow patterns in the studied aquifer system.

We find that the system is controlled by mixing of three distinct water masses: Interglacial or recent meteoric water (δ Kr ages range from 300 ka to 1.3 Ma for interglacial or recent meteoric water and glacial meltwater.

For the brine component, ages exceed the dating range of the ATTA-3 instrument of 1.3 Ma.

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By carefully explaining both the underlying theory and the underlying mathematics, this text enables readers to fully grasp the fundamentals of physical and chemical treatment processes for water and wastewater.

Kr and noble gases on groundwater from the deepest aquifer system of the Baltic Artesian Basin (BAB) were performed to determine groundwater ages and uncover the flow dynamics of the system on a timescale of several hundred thousand years.

The fully automated, computer-controlled manifold system allows analysis of the full suite of noble gases (3He/4He, He, Ne, Ar, Kr, and Xe concentrations), along with low level tritium for reporting of derived quantities that include tritium/helium-3 groundwater age, noble gas recharge temperature, and dissolved excess air concentration.

This system represents a capability for characterizing groundwater recharge conditions by dissolved gas analysis that is unmatched by any other laboratory.

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