Namuaiv Lamprophyre Pipe in the Khibina Massif: Mechanism of Formation and Implications for the Nature of the Mantle Source of Late-Stage Magmatism in the Kola Alkaline Province. - Shaikhutdinova, D. R.; Sazonova, L. V.; Lebedeva, N. M.; Nosova, A. A.; Kargin, A. V.; Arzamastsev, A. A.; Kovach, V. P. (Petrology, 2025)