fractional crystallization

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.

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 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.

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.

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.