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.
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 gem-grade olivines exist in lherzolite enclaves and some xenocrysts.
本文对中国东部一些新生代玄武岩中二辉橄榄岩团块的结构进行了研究。
The ultramafic nodules widely distributed in Cainozoic basalt in eastern China are regarded as fragments of upper mantle that were brought up to the ground surface by basaltic magma.
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.
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 host rocks of the garnet pyroxenite are spinel peridotites, including spinel harzburgite and lherzolite.
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。
The upper mantle consists of lherzolite, and it seems that there is a transition zone between spinel and garnet lherzolites.
对河北大麻坪碱性玄武岩及其内的辉石岩和二辉橄榄岩包体进行了不同温压条件下的弹性波速测定。
Measurements of elastic wave velocities at different high temperatures and high pressures were made on alkali basalt and xenoliths of pyroxenite and lherzolite from Damaping, Hebei.
后者以二辉石岩为代表，具典型堆积结构，与本区尖晶石二辉橄榄岩相比，具有较高的稀土元素丰度。
The latter is representive of pyroxenite, which displays the accumulate texture and has higher REE abundance than the Sp-lherzolite from the region.
含蓝宝石的玄武岩中含有大量的二辉橄榄岩，该种岩石是上地幔部分熔融出玄武岩熔体后的上地幔残留物。
The sapphire-bearing basalts contain abundant iherzolit es that belong to the remnants of the upper mantle left after the removal of basaltic melts from partial melting of the upper mantle.
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.
摘要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.
杂岩体主要岩石类型为：辉长岩、辉长辉绿岩、辉石岩、橄榄辉石岩等。
The main rocks in the complex are gabbro, gabbro-diabase, pyroxenite and olivine-pyroxenite etc.
杂岩体主要岩石类型为：辉长岩、辉长辉绿岩、辉石岩、橄榄辉石岩等。
The main rocks in the complex are gabbro, gabbro-diabase, pyroxenite and olivine-pyroxenite etc.
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