Cuitzeo Isotopes

This study examines the spatial distribution of GW and SW solute compositions and stable water isotopes across a temperate, volcanic lake basin in west-central Mexico to assess the hydrogeological connectivity within GW and the lacustrine system. A spatially distributed sampling was conducted for major ions, nitrate, strontium, and 18O and 2H. A total of 96 samples including springs, wells, rivers, and thermal systems were collected between April and May 2024. The second dataset includes the SW and GW to precipitation δ18O ratio (SW/P or GW/P).本研究针对墨西哥中西部的温带火山湖盆，分析地下水（Groundwater, GW）与地表水（Surface Water, SW）的溶质组分及稳定水同位素的空间分布特征，以评估地下水系统内部以及地下水与湖泊系统间的水文地质连通性。研究于2024年4月至5月间开展空间分布式采样，共采集涵盖泉点、水井、河流及热液系统在内的96份样品，检测指标包含主要离子、硝酸盐、锶以及氧18（¹⁸O）和氢2（²H）。第二份数据集包含地表水与降水的δ¹⁸O比值（SW/P）以及地下水与降水的δ¹⁸O比值（GW/P）。