地幔岩

The contents of Ni, Au, Mo, W of the deep-seated xenoliths and their host basalts from eastern China are inhomogeneous. The contents of Ni, Au are highest in the mantle-derived xenoliths the contents of Mo, W are highest in the basalts and the mafic granulite, and the leptite and the granitoids, respectively.

地球深部包体中镍、金、钼、钨等成矿元素的含量是不均一的，镍和金在地幔岩包体中含量最高，铝在玄武岩及镁铁质麻粒岩包体中最高，而钨在长英质麻粒岩和花岗岩类包体中含量最高。

Genetic mechanism of metamorphic peridotite in the ophiolites is partial melting of the upper mantle peridotite. Difference between two types ophiolites is dicided by degree of the partial melting.

两类蛇绿岩中变质橄榄岩的成因机制是上地幔岩部分熔融，两者之间的差异则是由部分熔融程度决定的。

After highly fractionating, this Crrich magma formed massive chromite (i.e., Saertuohai chromite deposit), and the melt moved into the mantle rock, and formed the wormlike intergrowth texture consisting of Crspinel and orthopyroxene.

这种富铬岩浆高度分异形成铬铁矿块体后，熔体进入地幔岩中结晶形成铬尖晶石和斜方辉石的蠕虫状共生连晶结构。

After highly fractionating, this Cr-rich magma formed massive chromite (i.e., Sa' ertuohai chromite deposit), and the melt moved into the mantle rock, and formed the worm-like intergrowth texture consisting of Cr-spinel and orthopyroxene.

这种富铬岩浆高度分异形成铬铁矿块体后，熔体进入地幔岩中结晶形成铬尖晶石和斜方辉石的蠕虫状共生连晶结构。

Tungsten content of host basalts is usually higher than that of their mantle-derived xenoliths.

地幔岩特别是玄武岩中钼含量的高低，对地壳中钼矿床和钼矿集中区的分布有指示意义。

REE abundances and Sr and Nd isotopic composition in mantle xenoliths from basalts in Hannuoba are reported in this paper.

本文报道汉诺坝玄武岩中地幔岩捕掳体的REE丰度和Sr、Nd同位素组成。

By means of distribution in figure of-La for the REE data, the original rocks of the garnet-pyroxene granulites would be derived from a mantle partial melting.

将REE数据投影到-La关系图中，投影点沿部分熔融斜线分布，提示原岩岩浆是地幔岩部分熔融产物。

The gold content of mantle-derived xenoliths are usually higher than that of their host rocks.

1金在地幔岩包体中的含量通常高于寄主玄武岩中的含量。

Unlike gold, molybdenum content of host rocks is remarkably higher than that of mantle-derived xenoliths.

(1)与金不同，钼在寄主玄武岩中的含量显著高于在地幔岩包体中的含量。

In this paper, the distribution, abundance and occurrence states of U in mantle xenoliths are studied by ~(235)U fission track method, and the movement of mantle fluids is revealed by means of U-tracer, which is a representative of incompatible elements in the mantle.

在此基础上进一步把铀作为不相容元素群的示踪剂，指示地幔流体在深部地幔岩中的活动轨迹。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。