In North and Northeast China widely developed mantle-derived peridotite xenoliths, which were carried to the surface by alkalibasalticmagma.
研究由玄武岩岩浆携带到地表的幔源橄榄岩包体可以获得上地幔的许多信息。
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They are formed from alkalibasalticmagma that slightly melted out of continental mantle by AFC mixing in depth, especially by the fractional crystallization in shallow horizon.