TY JOUR TI Analysis of Spectral Remote Sensing Data for Geological Mapping of Rare Earth Elements (Case Study of the Kola Peninsula) KW Rare earth elements KW hyperspectral remote sensing KW remote exploration methods KW spectral analysis KW mineral deposit mapping JO Russian Journal of Earth Sciences AU Kamaev, A.A. PY 2025 IS 25 PB Geophysical Center of the Russian Academy of Sciences