TY JOUR TI Rare earth elements in rocks and minerals from alkaline plutons of the Kola Peninsula, NW Russia, as indicators of alkaline magma evolution KW rare-earth elements KW alkaline plutons KW alkaline magma evolution KW Kola Peninsula. JO Russian Journal of Earth Sciences AU , .. AU , .. AU , .. AU , .. PY 2002 IS 4 PB Геофизический центр Российской Академии Наук