确定岩石中矿物成核速度、成核密度、晶体生长速度和结晶时间的CSD理?

The Nucleation Rote, Nucleation Density, Crystal Growth Rate and Growth Time of the Minerals for Determination by the Theory of the Crystal Size Distribution(CSD)

结晶岩类的热力学研究是岩石学研究的主要內容之一?疚慕樯芰私峋а沂锌笪锝峋Ч?包括矿物成核密度,成核速度、晶体生长速度、结晶时间与晶体大小分布的关系即CSD理论以及岩浆冷却、喷发、混合,接触变质、区域变质等过程各自具有的CSD特征;并对CSD理论、方法及其地质应用进行了评价;指出复杂的自然过程对CSD的影响,在定向构造发育较好的岩石中由二维晶体测定转向三维计算的改进方法以及CSD所具有的重要的年代学意义。

The kinetics is one of the important subjects on the petrology. In this paper the theory and method of the crystal size distribution(CSD)and its characteristics in some simple geological processes are intruduced. And an appraisal was raised for CSD according to a) theoretically and the practical application, b) the natural geological processes, c) the calculating results of two to three dimensions in some rocks, and d) the geochronology. It is suggested that 1) the natural geological processes are very complicated and have some effects to CSD, 2) the errors of calculating from two to three dimensions in some minerals with the low-grade symmetric crystal system could be easy eliminated by the orientaledmeasure, and 3) the crystal growth time has a geochronological significance under some conditions.