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magma相关的网络例句

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All of these charac-teristics are similar to those of continental crust transformation series granite in South China,implying that their parent magma may be derived from the unexposed Proterozoic metasedimentary rocks.

这些特征都相似于华南陆壳改造系列花岗岩,它们的母岩浆可能来源于

If magma is involved, metasomatic skarn can be formed, but this kind of skarn is obviously later than the stratified skarn formed under a closed circumstance.

在有岩浆加入的条件下形成交代夕卡岩,这类夕卡岩明显地晚于封闭条件下形成的层状&夕卡岩&。

According to litho-geochemical data and H,O isotopic data gold is mainly derived from the deep-sourced magma and water of the ore fluid from magmatic water and meteoritic water.

氢氧同位素结果表明,流体中的水主要来自岩浆水和大气水。

The mafic microgranular inclusionin the granodiorite shows the magmatic mixing process,whithout assimilation-contamination and fractional crystallization in the upward movement of magma.

基本一致。加之花岗闪长岩类中含镁铁质微粒包体,认为花岗闪长岩类存在岩浆混合作用,岩浆向上运移过程中未发生同化混染和分离结晶作用。

The petrographic type of the Early Cambrian granites in the Huzhong area of Heilongjiang Province, is proved to be monzonitic granite, the Early Cambrian granites are divided into four intrusive periods based on the cognate magma evolution theory, and the rock structures show that the granularity evolutive tendency is from fine grain to coarse grain in the texture.

黑龙江省呼中地区早寒武世花岗岩的岩石类型为二长花岗岩,依据同源岩浆演化理论划分为4个侵入期次,岩石结构表现出一期结构演化序列中由细粒向粗粒的演化趋势。

We analyzed the tectonic differences and deep geodynamic characteristics based on the tomographic results, which show high velocity anomalies at the uppermost mantle beneath the northeast SCS, and depict the lithospheric mantle extension from South China continent to marginal sea. Because of the low temperature and thick lithosphere beneath the northeast SCS, it seems no magma intruded from mantle, so we inferred that the rift may only occur in the crust rather than extend to the upper mantle, which shows the nature of nonvolcanic continental margin.

结果表明:南海东北部表现出陆架地区的岩石层特性,属于华南大陆向海区的延伸,岩石层厚度较大,现今不存在大规模的地幔热流活动,推测大陆边缘张裂作用仅限于地壳内部而没有延伸进入上地幔,具有非火山型大陆边缘的深部特点。

The characteristic compositions of the stable isotopic and the fluid inclusions in Maoping mineral district show that the main sources of Pb origin the Upper Earths Crust, partly froin orogenetic belt and/or Emeishan basalt; the S isotopic composition hints sulfur sources from the seawater; The D and O isotopic compositions show that they emerge from the compound results of the magma water, metamorphic water, hosted water and rain water; the origination of the C isotopic shows that C resource strata.

脉石矿物D、O同位素组成代表了岩浆水、变质水、建造水及大气降水混合作用的结果;C同位素组成则反映来自受热液改造的含有机质的地层,说明地层受成矿流体溶解、淋滤、萃取而提供了部分成矿物质和储矿空间。

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。

As the late evolutionary stage product of alkali-rich magma, pantellerite is always accumulated near the volcanic crater due to its high viscosity and poor mobility.

碱流岩是富碱岩浆演化晚期的产物,岩浆喷发到地表时粘度大,流动性差,往往堆积在火山口附近。

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