海山顶部的岩石是由蛇纹石化超镁铁质方辉橄榄岩组成。
The rocks at the top of the seamount consist of serpentinized ultramafic harzburgite.
阳原幔源包体包括二辉橄榄岩和方辉橄榄岩，是华北西部上地幔的直接样品。
The xenoliths in the yangyuan, including iherzolite and harzburgite, represent the direct samples from the upper mantle beneath western north China craton.
该蛇绿岩带的岩体由地幔橄榄岩组成，主要岩石类型是方辉橄榄岩和纯橄榄岩，缺少典型蛇绿岩剖面中的洋壳单元。
The ophiolite massifs are composed of mantle peridotite that is mainly harzburgite and dunite, and lacked of crust magmatite within the typical ophiolite suite.
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