在侵入岩和变质岩地区进行地质测量(地质填图)时,地质工作者不仅要重视岩石的正确命名及其产状的详细观察,还须搞清它们的生成条件与发育过程以及各种岩石间的相互关系,否则,就很难正确地了解工作地区的地质发育历史以及矿床生成规律等等。这些岩石的生成情况及其相互关系,必须经过细心、详尽的野外观察,必要的矿物、岩石鑑定与研究。以及全部资料的系统整理,研究与论证,才能得到较合理的推定。但是一般地讲,野外的观象与证据,还是解决问题的最主要关键。本文提出了这方面 Geological surveying (geologic mapping) in intrusive and metamorphic areas requires not only careful attention to the correct naming of rocks and the detailed observation of their occurrences, but also the geologic conditions of their formation and development, as well as the various types of rock It is difficult to correctly understand the geological development history of the working area and the law of deposit generation. The formation of these rocks and their interrelationships must be carefully and thoroughly observed in the field and identified and studied the necessary minerals and rocks. As well as the systematic compilation, research and argumentation of all data, can we get a more reasonable presumption. However, in general, field observations and evidence are still the key to solving the problem. This article presents this aspect