%0 Journal Article %T Pyroxenite xenoliths in basalts of Roca Negra volcano, Catalonia %A Grachev, A.F. %K Xenoliths; basalt; mantle metasomatism; chemical geodynamics; Catalonia %J Russian Journal of Earth Sciences %D 2015 %N 15 %P 12 %I Geophysical Center of the Russian Academy of Sciences