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帚状构造是扭动构造型式之一。该构造在西起孟定—云县一线,东到勐永—木戛—澜沧一线,北起云县县城附近,南经沧源一带入缅甸玉勒和中国西盟一带,总面积约一万三千余平方公里,收敛于耿马北东的勐永一带,向西南方向的缅甸及中国的西盟一带撒开。其主体属云南省临沧地区云县、耿马县,沧源县和思茅地区西盟县所辖。前人资料把该区统归于南北向构造带。建国以来,该区曾先后开展了一比一百万和一比十万区调及钨、锡、铜、铅、锌等多金属及金、银等贵金属矿床的普查找矿工作,取得了丰富的地质资料。最近又找到了大型的西盟富锡矿床和耿马地区金银矿带及铜、铅、锌等矿点。该区的背向斜和断裂构造及
Broom-like structure is one of the twisted structure type. The structure is located in the west of Mengding-Yunxian line, east of Mengyong-Mujia-Lancang line, north of Yunxian County, and south of Cangyuan into Burma Yule and China West Union. The total area is about Thirteen thousand square kilometers, converging to the northeast of Gengma Meng Yong area, to the southwest of Myanmar and China’s Western Union area open. Its main body is Lincang in Yunnan Province County, Gengma County, Cangyuan County and Simao Prefecture under the jurisdiction of Ximeng County. According to previous data, the area belongs to the north-south tectonic belt. Since the founding of the People’s Republic of China, the region has successively carried out census and prospecting work covering 1 to 1 million and 1 to 100,000 zones of polymetallic deposits of tungsten, tin, copper, lead, zinc and other precious metals and gold, silver and other precious metals deposits and obtained rich Geological data. Recently, it has also found large-scale Xiku Fu Tin deposits and gold and silver ore belts in Gengma region and copper, lead and zinc mines. The area of the back syncline and fault structure and