TY JOUR TI The plume and spreading associations of basalt and their reflection in the petrological and geophysical parameters of the northern Mid-Atlantic Ridge KW plume KW spreading associations KW Mid-Atlantic Ridge KW petrological and geophysical parameters. JO Russian Journal of Earth Sciences AU Dmitriev, L.V. AU Sokolov, S.Y. AU Melson, V.G. AU O'Hirn, T.. PY 1999 IS 1 PB Geophysical Center of the Russian Academy of Sciences