This paper discusses the implication of some significant achivements which have been made in recent years on cosmochemistry to the origin and evolution process of the Earth.
以近几年天体化学研究取得的一些重要成果，论述了对于认识地球的起源和演化进程的重要意义。
The data of geology, Petrology, trace and rare earth element geochemistry of this rock is reported and used to discuss on petrogenic type and tectonic implication.
本文系统报道了它的地质学、岩相学、岩石化学和地球化学的特征，讨论了它的成因类型归属和所代表的大地构造环境问题。这些资料表明；
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