mantle composition的例句大全

"fortunately, each hypothesis predicts a very different mantle composition, " strom says.

“幸运的是，每一个假想预测着不同的地幔组成，”斯特罗姆说。

Comparison between Palaeozoic and Cenozoic Lithospheric Mantle in the Eastern Part of the North China Block& With a Discussion of Mantle Evolution Nd ISOTOPIC COMPOSITION AND EVOLUTION OF THE UPPER MANTLE IN THE ARCHAEAN OF NORTH CHINA: CONSTRAINTS ON THE MANTLE HETEROGENEITY OF THE UNMETASOMATIC CONTINENTAL LITHOSPHERE

华北地台东部古生代与新生代岩石圈地幔特征及其演化华北太古代上地幔钕同位素组成、演化及对该区岩石圈地幔不均一性的制约

simulating experimental study of the composition of the water-bearing upper mantle

含水上地幔的模拟实验研究

Basalt have importance meanings on deduce the Earth's mantle material composition, analysis tectonic environment and the geosphere deep dynamics research.

玄武岩在反演地幔物质成分、分析构造环境和岩石圈的深部动力学研究中具有重要意义。

Isotope concentrations in rock samples of different ages indicate that the composition of the Earth's mantle changed after the planet was blasted with meteors 3.9 billion years ago.

不同年代岩石样本中的同位素浓度显示：地幔化合物成分在39亿年前地球被陨石撞击后发生改变。

the thickness of the transition zone between the crust and the mantle is about 3 km and composition of the zone might be the interbed of peridotite and basic granulites.

这里的壳幔过渡带厚度可达3km，推测为橄榄岩与基性麻粒岩互层。

The study indicates strong composition differences between noble gases from MORB and OIB supporting two-layer mantle structure. Mantle degassing process is controlled mainly by SCD model.

研究表明，MORB源和OIB源玄武岩稀有气体组成差异强烈支持地幔双层结构的存在，地幔脱气过程主要受溶解度控制脱气模式（SCD）控制；

Current theory of mantle convection and delamination and mantle plume proposed on the basis of the difference in density and temperature is poorly accepted and is unable to explain the composition, structure and evolution of continental lithosphere and continental orogen of China.

现在流行的按密度差、温度差建立的地幔对流、拆沉作用、地幔柱理论，阐明不了中国大陆岩石圈、大陆造山带的组成、结构与演化。

Ore-forming magmas were drived from the deep mantle and were contaminated by the crust to some degree during their ascending process. The calc-alkali complexs are typically porphyrite or porphyry and show characteristics of adakite-like rocks in chemical composition.

成矿岩浆为深成的幔源岩浆，在上侵演化过程中受到地壳物质不同程度的混染，形成以玢岩和斑岩为主的钙碱性岩杂岩体，在化学成分上具有埃达克质岩的特征。