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沈阳铝镁设计研究院山西铝工业规划组于1987年5月27日至6月27日对山西省晋西北九个县开展了实地调查和收集资料工作。在原平和宁武县同志们帮助下以民采矿点为线索,在地质部门尚未开展工作的地方发现一大型高品位铝土矿开发区,该区包括山西省原平、宁武两县的6个乡。目估铝硅比可能达到7、是一高铝、低硅、低铁型铝土矿。原平县段家堡乡的角川——将军墓矿
Shenyang Aluminum and Magnesium Design and Research Institute of Shanxi Aluminum Industry Planning Group on May 27, 1987 to June 27, Shanxi Province, Shanxi Province, nine counties northwest launched a field survey and collection of information. With the help of comrades from Pingdingshan and Ningwu County, taking the mining point of the people as a clue, a large high-grade bauxite development zone has been discovered in areas where the geological department has not yet done any work. This zone includes 6 townships in Yuanping and Ningwu counties of Shanxi Province . It is estimated that aluminum-silicon ratio may reach 7, which is a high-aluminum, low-silicon and low-iron bauxite. Jiaoping Township, Yuanping County section of Kadokawa - General Tombs