• Trace element distributions between minerals, melts and fluids in igneous and metamorphic rocks
• Chemistry and mechanisms of melt infiltration in mantle rocks
• Geochemical and petrological processes in subduction zones.
• Melt composaitions and melting processes in mantle vein assemblages
• Petrology and geochemistry of alkaline igneous rocks and mantle xenoliths in eastern Siberia.
• Petrology and geochemistry of mantle xenoliths and alkaline rocks in eastern Antarctica.
• Experimental studies of melt distribution in partially molten rocks.