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Especially when multiple tracers are used, Apparent groundwater age dating has been particularly useful and accurate in terms of water discovery and mixing procedures. However, though the age tracers have not been widely used in general flow and transport model calibration, they have not been widely used in the general practice of flow and transport model calibration. In several groundwater samples, the coexistence of 3H, 14C, and 4He suggests that mixing of groundwater with young and old fractions occurs predominantly in the central portion of the aquifer, as shown by the coexistence of 3H, 14C, and 4He. The analysis of groundwater's stable isotopic and hydrochemical composition of water of various origins is also proven to facilitate mixing between water of different origins. Particle tracking residence time results show an acceptable deal with apparent ages derived from age tracers for young and old groundwater, as shown by a valid Particle tracking residence time sequence. Groundwater with ages ranging from 100 to 1000 years is likely to be a blend of water with young/old fractions, which accounts for the largest discrepancies between advective model ages and age tracer based on apparent ages. We distinguish between three groundwater drain systems in Neogene's aquifer on the basis of our findings: i a shallow/local flow system, with groundwater originating from modern meteoric water; ii a deep/semi-regional flow system in which the presence of 4Herad is significant; i a mixed zone of groundwater flow where the newly infiltrated meteoric water mixes with discharging old groundwater; ii a.
Source link: https://doi.org/10.1016/j.hydroa.2022.100132
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