Integrating geostatistical methods and deep learning for enhanced 87Sr/86Sr isoscape Estimation: A case study in South Korea. - Hyeongmok Lee; Go-Eun Kim; Woo-Jin Shin; Yuyoung Lee; Sanghee Park; Kwang-Sik Lee; Jina Jeong; Seung-Ik Park; Sungwook Choung (Int. J. Appl. Earth Obs. Geoinformation, 2025)