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一、矿床地质简况广西龙胜滑石矿,是我国南方最大的滑石宝库,矿床均产于三门复式倒转背斜的东翼(详见图1),严格受区域NNE向压性断裂构造(成矿期构造)与白云石大理岩(ptbh~5)和细碧岩(ptbh~4)的控制。根据滑石矿点呈线性分布的特征,及与NNE向压性断裂的依存关系,大致可分为两大成矿带。第一成矿带受F_1断层控制,主要由古坪、下鸡爪、桐子山三大矿区组成,长约8公里,为本区最重要的滑石基地。第二成矿带受F_3断裂控制,由中鸡爪至古塘矿区,矿带全长12公里,工业意义次于第一成矿带。
I. Geological Profile of the Deposit Guangxi Longsheng Talc Mine is the largest talc treasure house in southern China. The deposits are all produced in the east wing of the triple-decker anticlinal anticline (see Figure 1 for details) and strictly controlled by the regional NNE compressive fracture structure ) And the control of ptbh ~ 5 and ptbh ~ 4. According to the characteristics of the linear distribution of talc deposit and the dependence on the compressive fracture with NNE, it can be roughly divided into two major metallogenic belts. The first metallogenic belt is controlled by the F_1 fault and is mainly composed of the three major mines of Gu Ping, Xiaji Jaw and Tongzi Mountain. It is about 8 km long and is the most important talc base in this area. The second metallogenic belt is controlled by F_3 fault, from Zhongjiao to Gungtang mining area. The ore belt is 12 kilometers in length, which is of industrial significance inferior to that of the first metallogenic belt.