一、序言 1952年秋作者在皖南铜官山工作,见到发育较良好的燧石石灰岩的渐进的接触变质现象。因为工作的需要,并得测制精密的大比例尺地形底图之便,在详填该区地质图时,作者曾缜密观测其变化,并注意其发展变化的规律,因而有可能使作者对于该区燧石石灰岩的渐进的接触变质有了较全面的、系统的了解,并据 I. Preface In the autumn of 1952, the author worked in Tongguan Mountain, Southern Anhui Province, and saw the gradual contact metamorphism of well-developed chert limestone. Because of the need of work and the accurate measurement of large-scale topographic maps, the author carefully observed the changes in the geological map of the area and paid attention to the law of its development and changes, thus making it possible for the author to The progressive contact metamorphism of chert limestone has a more comprehensive and systematic understanding of