%0 Journal Article %T Compositional heterogeneity of the continental mantle: Evidence from ultramafic xenoliths in cenozoic basalts from Northern Eurasia %A Grachev, A.F. %K ultramafic xenoliths, mantle, geochemistry, isotopic composition, Northern Eurasia %J Russian Journal of Earth Sciences %D 2015 %N 15 %P 12 %I Geophysical Center of the Russian Academy of Sciences