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一、前言在1958年的大跃进中,由于大面积的普查,在云南中部禄丰、广通、楚雄、双柏、牟定、大姚、姚安、盐丰等地找到了许多含铜砂岩的矿点,因而对于这个地区的地层构造情况有了进一步的了解。笔者自去年至现在都参加了禄丰一带的普查工作,今年元月又出席了云南省含铜砂岩现场会议,听了局长、地质处以及各个队的地质报告,故对于这个地区的大地构造单元的性质与特点有一些新的体会和认识,觉得它既不是以
I. Introduction In the Great Leap Forward of 1958, due to the large-scale census, many copper-bearing sandstones were found in places such as Lufeng, Guangtong, Chuxiong, Shuangbo, Mouding, Dayao, Yao’an and Yanfeng in central Yunnan. Of the ore point, so for the region of the stratigraphic structure has a better understanding. Since last year, the author has participated in the census work in Lufeng area. In January this year, he attended the on-site conference of copper-bearing sandstone in Yunnan Province and listened to the geological reports of the director, the geology department and the teams. Therefore, for the geotectonic unit in this area The nature and characteristics of some new experience and understanding, I feel it is neither