Harzburgite

  • 网络方辉橄榄岩;斜方辉橄榄岩;斜方辉橄岩;斜方辉石橄榄岩
HarzburgiteHarzburgite
  1. Lithologic types of the massifs are mainly harzburgite and dunite , with subordinated lherzolite ( orthopyroxene : 5 ~ 7 % ) . The textures and structures are similar to those of metamorphic rocks , and micro - plastic deformation of minerals is ubiquitous .

    主要岩石类型是方辉橄榄岩和纯橄榄岩,二辉橄榄岩极少(单斜辉石含量5~7%),具有典型的变质岩结构构造特征,矿物显微塑性变形普遍发育。

  2. The presence of the oceanic harzburgite in continental-type UHP belt reveals an integrated process of continental orogenic belt from oceanic lithospheric subduction to subsequent continental subduction and collision .

    这些特征表明该方辉橄榄岩应代表洋壳下伏地幔橄榄岩,从而揭示大陆造山带从早期的大洋俯冲消亡到大陆俯冲碰撞的完整过程。

  3. Trace element geochemistry and mineral chemistry studies on the metamorphosed harzburgite indicate that it is the relict of the depleted mantle .

    变质方辉橄榄岩的微量元素地球化学及矿物化学特征表明,应为亏损的残余地幔产物。

  4. The rocks at the top of the seamount consist of serpentinized ultramafic harzburgite .

    海山顶部的岩石是由蛇纹石化超镁铁质方辉橄榄岩组成。

  5. A harzburgite xenolith sample from Paleogene basalts in Shuangliao area of Jilin Province records the information of upper mantle metasomatism .

    吉林双辽地区古近纪玄武岩中一方辉橄榄岩包体记录了上地幔交代作用的信息。

  6. 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。

  7. It is composed mainly of harzburgite , basaltic and basalt - andesitic lavas , and a small amount of graywacke and silicalite .

    它主要由斜方辉橄岩、玄武质和玄武安山质火山岩及少量杂砂岩和硅质岩组成。

  8. The fractal structure factors ( FSF ) of spinel from ultramafic xenolith , harzburgite , dunite and chromite have been calculated using a new method presented by Shen ( 1993 ) .

    利用沈步明(1993)提出的分形结构因子的新方法,计算了橄榄岩包体、方辉橄榄岩、纯橄榄岩和铬铁矿等六种尖晶石的分形结构因子。

  9. The more complete crystallization evolution sequence of primary magnesian basic magma is : harzburgite → olivine pyroxenite → trocto → lite → gabbro → plagioclass - rich gabbro .

    原始富镁基性岩浆结晶演化序列是:辉橄岩→橄辉岩→橄长岩→辉长岩→富斜辉长岩。

  10. The mantle peridotite is composed mainly of harzburgite , which shows a narrow range in the major elements , enriched light rare earth elements ( LREE ), U-type REE patterns with negative Eu anomaly , and strongly depleted incompatibility elements .

    地幔橄榄岩主要是方辉橄榄岩,其主要氧化物成分较为单一,具LREE富集、Eu亏损的U形REE配分模式,亏损强不相容元素;

  11. The Shanwang basalts contain ultramafic inclusions and megacrysts of clinopyroxene and anorthoclase . The ultramafic inclusions can be divided into five classes : spinel dunite , spinel lherzolite , spinel harzburgite , spinel-garnet websterite and garnet lherzolite .

    山旺新生代玄武岩中的超镁铁质包体分为五类:尖晶石纯橄榄岩、尖晶石二辉橄榄岩、尖晶石方辉橄榄岩、尖晶石石榴石二辉岩和石榴石二辉橄榄岩。