TY JOUR TI MAR volcanism in the Sierra Leone Fracture Zone region, Central Atlantic KW geochemistry of basalts KW chilled basaltic glasses KW Mid-Atlantic Ridge KW MAR volcanism. JO Russian Journal of Earth Sciences AU Skolotnev, S.G. AU Peyve, A.A. AU Lyapunov, S.M. AU Simonov, V.A. AU Glazyrin, Y.E. AU Kolobov, V.Y. PY 2003 IS 5 PB Geophysical Center of the Russian Academy of Sciences