[A-HW34] Isotope hydrology 2026

[AHW34-P05] Estimating groundwater recharge of an alluvial fan by river water infiltration - A case study based on δD, δ¹⁸O of water and δ¹³C of DIC -

*Masaya Yasuhara¹, Seongwon Lee¹, Rikuto Kamiguchi², Yoko Togo³, Tsuyoshi Shintani³, Noritoshi Morikawa³ (1. Faculty of Geo-Environmental Science, Rissho Univ., 2. Himi City Office, 3. Geological Survey of Japan, AIST)

Keywords:alluvial fan, shallow groundwater, river water infiltration, mixing analysis, δD and δ18O of water, δ13C of DIC