镁铁质火成岩作为分布最为广泛的典型幔源岩石，已成为探索地幔化学性状及示踪岩石圈深部过程的主要研究对象。
Mafic igneous rock, a widely distributed and typical mantle-derived rock, has become a major research source for revealing possible mechanisms for the chemical evolution of the mantle.
溢流玄武岩的同位素体系特征表明它们的源区涉及再循环地幔的壳幔混合、岩石圈减压熔融、上—下地幔过渡带和似原始-略亏损的下地幔。
Isotopic systematics of flood basalts indicate that their sources are involved in crust-mantle mixing in a recycled mantle, decompression melting of lithosphere.
在某些地质时期还与幔源岩浆的底垫对地壳或岩石圈的改造有关。
Some times in the process there was reworking of diapir of mantle-sourced magma on the crust or lithosphere.
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