Major and Trace Element Characteristics and Lithium Isotopes of Saline Spring Waters in the Nangqian Basin: Implications for Fluid Sources and Water–Rock Interaction

This dataset is associated with the paper entitled “Major and Trace Element Characteristics and Lithium Isotopes of Saline Spring Waters in the Nangqian Basin: Implications for Fluid Sources and Water–Rock Interaction”. The dataset contains geochemical data of representative saline spring water samples collected from the Nangqian Basin during the wet season in June 2022 and the dry season in November 2022. The data include basic sample information, in situ physicochemical parameters, major ion compositions, trace element concentrations, and lithium isotopic compositions of wet-season samples. The main parameters include K⁺, Na⁺, Ca²⁺, Mg²⁺, Cl⁻, SO₄²⁻, HCO₃⁻, Br, Sr, B, Si, Fe, Li, and δ⁷Li. This dataset provides basic data support for studies on hydrochemical characteristics, sources of salinity, fluid evolution, and water–rock interaction processes of saline springs in the Nangqian Basin.