Groundwater-Mixing Mechanism in a Multiaquifer System Based on Isotopic Tracing Theory: A Case Study in a Coal Mine District, China

<div>Na<sup>+</sup>/Cl<sup>−</sup> and Cl-<i>δ</i><sup>18</sup>O diagrams of the water samples. MIX: mixing water; CLG: Cambrian aquifer groundwater; QG: Quaternary aquifer groundwater; sw: surface water; CSG: coal-bearing sandstone aquifer groundwater.</div>

Geofluids

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Figure 3

Figure 3: Groundwater-Mixing Mechanism in a Multiaquifer System Based on Isotopic Tracing Theory: A Case Study in a Coal Mine District, China 