GGeochimica et Cosmochimica Acta3/1/2026Iron (Fe) isotopes decipher Fe fate in acid mine drainage within a karst watershedYuhui Liu·Chengshuai Liu·Meng Qi·Lei Song·Jing Sun·Ting Gao·Yafei XiaRead at Geochimica et Cosmochimica ActaTagsMine drainage and remediation techniquesEnvironmental Chemistry