This study was conducted to identify the origin, hydrogeochemical processes and evolution of groundwater in a tectonic valley. This study was carried out with the aim of quantifying the proportions of groundwater flows contributing to the water chemistry abstracted in a zone of convergence favored by the presence of active faults. The study area is located in the Trans-Mexican Volcanic Belt. End members methodology was applied to identify the mixing of hydrothermal with fresh groundwater, where changes in the aquifer geology result in distinct groundwater chemical signatures. Ternary mixing was quantified using conservative elements. Moreover, other evolutionary processes, such as ion exchange and silicate weathering occur due to changes in the geology of the area. In ternary mixing, each of the end members is associated with the lithology through which it circulates. The local flow contributes 70% of the water to the system, the intermediate flow contributes 14%, and the regional flow contributes 16%. Three types of water are produced: Na-HCO₃, due to the interaction of water with volcanic rocks of rhyolitic composition, Na-Mg-HCO₃, due to the interaction of water with volcanic rocks of basaltic-andesite composition, and Ca-HCO₃, due to the interaction of water with sedimentary calcareous rocks.

进行这项研究的目的是确定构造谷地的起源，水文地球化学过程和地下水的演化。进行这项研究的目的是量化在活动断层有利的收敛带中，地下水流对提取水化学的贡献比例。研究区域位于跨墨西哥火山带。应用末端成员方法来确定热液与新鲜地下水的混合，其中含水层地质的变化导致了独特的地下水化学特征。使用保守元素对三元混合进行定量。此外，由于该区域的地质变化，还会发生其他演化过程，例如离子交换和硅酸盐风化。在三元混合中 每个端部构件都与流经的岩性相关联。局部流量占系统水的70％，中间流量占系统水的14％，区域流量占系统的16％。产生三种类型的水：碳酸氢钠₃，由于水与流纹岩组成的火山岩的相互作用，Na-Mg-HCO ₃，由于水与玄武质-安山岩组成的火山岩的相互作用，以及Ca-HCO ₃，由于水与玄武质组成的火山岩的相互作用钙质沉积岩。