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前言随着地质工作的不断发展,进一步利用同位素地质年龄资料研究和解决地质问题显得越来越重要。我国同位素地质年代学的研究在迅速的发展过程中积累了大量资料。如何根据数学原理,用电子计算机处理和利用这些资料是当前急待解决的问题。本文企图在这方面做些尝试,探索处理和利用同位素地质年龄资料的新方法。作者采用华北地区前寒武纪变质岩系的同位素地质年龄数据,利用最优分割法,在Varian 620电子计算机上,对本区变质岩系的地层层序和变质作用发生的期次作了划分
Preface With the continuous development of geological work, it is more and more important to further utilize the geological age data of isotopes to study and solve geological problems. The research of isotope geochronology in our country has accumulated a great deal of data in the rapid development. How to deal with and utilize these materials according to the mathematical principle is the urgent problem to be solved. This article attempts to make some attempts in this area to explore new ways of dealing with and utilizing isotope geologic age data. Based on the isotopic geologic age data of the Precambrian metamorphic rocks in North China, the author uses the optimal segmentation method to divide the sequences of the stratigraphic sequence and metamorphism of the metamorphic strata in this area on the Varian 620 electronic computer