中国主要金属矿产勘查程度对比

Comparison of the exploration levels of main metallic ore resources in China

新中国成立50多年来,已经完成了大量矿产勘查工作,同时也发现大量与国民经济发展密切相关的矿产资源。但由于自然地理因素影响,中国矿产勘查程度东、西部差异较大。东部矿产勘查程度较高但找矿难度大,西部勘查程度较低,需要大的地勘投入,提高工作程度,发现更多的矿产资源。因此,占中国一多半国土面积、矿产勘查程度较低或极低的西部地区成为目前及今后矿产勘查的主攻区域。本文主要利用20世纪全国地质工作程度数据库成果,通过对占据全国金属矿产勘查工作70%的有色金属、黑色金属和贵金属矿产勘查程度的研究,分析全国矿产勘查工作的特征和程度差异,探讨整体提高低勘查程度区的矿产勘查工作部署问题。

Large amounts of mineral exploration work have been completed and many ore deposits that are closely related to the economic development discovered during the past 50-odd years since the founding of the People's Republic of China. However, there are appreciable differences in exploration level between eastern and western China because of the influence of physical geographical factors. The higher exploration level in eastern China means great difficulty in ore finding, and on the other hand the lower level of exploration in western China calls for greater input in geological survey and mineral exploration so as to find more mineral resources. So western China, which accounts for more than a half of China's land area and whose exploration level is relatively low or very low, is the main target region for the present and future mineral exploration. This paper analyzes the characteristics of nationwide mineral exploration and difference in exploration level between eastern and western China by using the database of the nationwide geological work in the 20th century and through a study of the levels of nonferrous, ferrous and noble metallic mineral exploration that accounts for 70% of China′s total mineral exploration work and discusses the work plan for raising the mineral exploration level in low-level exploration areas.