(Table 4) Rare earth element contents in basalts from the Mid-Atlantic Ridge ...

Analyses have been carried out in the Geological Institute of the Russian Academy of Sciences by S.M. Lyapunov.S.M.李亚普诺夫（S.M. Lyapunov）于俄罗斯科学院地质研究所（Geological Institute of the Russian Academy of Sciences）开展了此项分析工作。