英语语法分析

The gem-grade olivines exist in lherzolite enclaves and some xenocrysts.

玄武岩中构成宝石的橄榄石产于二辉橄榄岩包体中和少量的捕虏晶中。

The host rocks of the garnet pyroxenite are spinel peridotites, including spinel harzburgite and lherzolite.

石榴辉石岩的寄主岩是尖晶石橄榄岩类，包括尖晶石方辉橄榄岩和尖晶石二辉橄榄岩。

The upper mantle consists of lherzolite, and it seems that there is a transition zone between spinel and garnet lherzolites.

上地幔由超镁铁质的二辉橄榄岩组成，在尖晶石二辉橄榄岩和石榴石二辉橄榄岩之间有一过渡层。