迁安地区石榴子石的统计分析

本文采用统计分析方法处理石榴子石的分析数据,从中获得一些可靠的地质信息,为正确地认识本区的地质发展史和混合岩化的详细过程提供了科学依据。我们采用了簇群分析和因子分析二个方法,结果一致证明了矿体的顶板混合岩化程度较高,矿体底板的混合岩化程度较低;因子分析(R型)获得了混合岩化过程中,混合岩化作用有两次热峰,在第二次热峰后局部产生了热液活动,形成了少量的硫化矿物。这是一般方法所不及之处。

STATISTICAL ANALYSIS OF GARNET FROM QIANAN AREA

A statistical approach has been adopted to processing the analytical data ongarnet and some relieable geological information has been developed as a guideto understand the geological history and the detailed process of migmatizationin the studied area. The results of both cluster-and factor-analysis are in good agreement witheach other.For instance,both analytical approaches have proved that the extentof migmatization is greater in the upper part of the rock body than in the bot-tom.Factor-analysis in particular(R-mode)shows that there are two thermalpeaks during the process of migmatization.Hydrothermal solutions produced inresponse to migmatization formed a small quantity of sulfide minerals.Thisapproach has proved itself more advantageous over other methods.