一九七七年以来,我们的工作任务是在云开大山寻找铁矿。其主攻层位之一,是在中寒武系各式变质片岩中,夹有数层“绿变岩”(绿色变质岩),它是磁铁矿的载层。具体任务是在该区对成矿规律,矿床成因以及指出远景区域等。绿变岩分布在云开大山褶皱带及其两翼,包括桂东南,粤西南,延展延深较稳定, Since 1977, our job is to find iron ore in the mountains. One of its main strata is that in the metamorphic schists of the Middle Cambrian, there are several “green-altered rocks” (green metamorphic rocks) sandwiched between layers of magnetite. Specific tasks are in the area of ​​metallogenic law, cause of the deposit and pointed out that the prospects of the area. The metamorphic rocks are distributed in the Yunkai Dashan fold belt and its two wings, including southeastern Guangxi and southwestern Guangdong. The extension and deepening are more stable,