fractional crystallization

The purity of refined naphthalene could be more than 99.5 % by said fractional crystallization process.

通过分级结晶提纯过程,可获得纯度达到99.5%以上的精萘产品.

Fractional crystallization of anorthite and enhanced dissolution of zircons in its source regions are the main controlling factors responsible for the anomalous geochemistry of this dike.

分析表明，钙长石的结晶分离作用和部分熔融过程中锆石溶解程度的升高是导致该岩脉异常地球化学特征的主控因素。

It is most possible that the massifs are of magmatic origin from fractional crystallization of crust-remelted granitic magma.

它们很可能是由地壳硅铝层重熔的花岗岩浆经结晶分异作用而形成的。

Both fractional crystallization and partial melting are important processes that control the variation of chemical composition of basaltic magma.

分离结晶作用和部分熔融作用，是控制玄武岩浆化学成分变异的两种主要方式。

They are characterized by the high-Al and low-Fe and-Mg composition and high Sr and O isotope ratios. Geochemical study shows that they are the product of anatexis of argillaceous rocks and fractional crystallization of magmas.

岩体以高铝、低镁铁组分，高锶、氧同位素比值为特征，地球化学研究显示它们是泥质岩的深熔作用和岩浆的结晶分异作用所形成的产物。

The main diagenesis is fractional crystallization assimilation and contamination.

成岩作用是分离结晶和同化混染联合作用.

Calculation on the general distribution coefficient of the fractional crystallization magma series by the relationship of abundance

用丰度关系法计算分离结晶岩浆岩系总分配系数

The principle and characteristic of continuous multistage fractional crystallization process are introduced.

介绍了连续多级逆流分步结晶过程的原理和特点.

These characteristics indicate that the ore-forming fluid resulted from fractional crystallization of magma, with the participation of some connate water at the late stage.

根据这些特征可推断出成矿流体源于花岗岩浆的结晶分异，晚期有少量建造水混入。

The pyroxenite xenoliths could be accumulates of the high-pressure fractional crystallization of the parental magma.

辉石岩类捕虏体是由该母岩浆高压分离结晶堆积的产物.