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在没讲正题之前,我愿借此机会就中华人民共和国地质部金属物探工作的现状谈几点一般性的意见。现代的物探方法是研究地壳的强有力的工具,其主要目的是揭露和研究矿床。出于物探方法具有较好的经济效果和地质效果,因而在短暂的历史时期内,便成了地质勘探工作整体中的有机组成部分。中华人民共和国的物探工作方法,无论就其工作量而言,或就其工作质量而言,逐年都有所增长和提高,利用勘探方法解决的地质任务的数量也在不断地增多。如果说1957年底曾在9种矿产的33个项目上进行过物探工作的话,那么1958年就已在16种矿产的160个项目上进行了物探工作。现今在中华人民共和国应用着几乎所有在国际范围内已知的物探方法,其中航空磁测,地面磁测,金属量测量,电法勘探应用颇为广泛,电法勘探中又以自然电流法,联合剖面法和等电位线法为最,而放射性测量,水化学方法和电法中的偶极剖面法,中间梯度和其他一些方法则应用较少。
Before I say the subject, I would like to take this opportunity to give some general comments on the current status of metal geophysical work in the Geological Department of the People’s Republic of China. Modern geophysical methods are powerful tools for the study of the earth’s crust, with the main purpose of exposing and studying the deposit. Due to the good economic and geological effects of geophysical methods, it has become an integral part of the geological prospecting work within a short period of history. The method of geophysical work in the People’s Republic of China has been increasing and increasing year by year both in terms of its workload and in terms of the quality of its work, and the number of geological tasks that are solved using exploration methods is also on the increase. If geophysical work was carried out on 33 projects in nine kinds of minerals by the end of 1957, geophysical work on 160 projects of 16 kinds of minerals was carried out in 1958. Nowadays, almost all geophysical methods known in the world are applied in the People’s Republic of China. Among them, aerial magnetism surveying, surface magnetic surveying, metal amount surveying and electrical prospecting are widely used. Natural electrical current method, Joint profiles and equipotential lines are the most common, while dipolar profiles, intermediate gradients, and other methods are less commonly used in radiometry, hydration and electrical methods.