%0 Journal Article %T Chalcophile metals in the formation processes of magma and the Earth core %A Ryabchikov, I.D. %A Orlova, G.P. %A Babanskiy, A.D. %A Magazina, L.O. %A Tsepin, A.I. %K chalcophile metals, formation processes of magma, NMORB basalts quantitative model. %J Russian Journal of Earth Sciences %D 1999 %N 1 %P 10 %I Geophysical Center of the Russian Academy of Sciences