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贵州中部EW向构造带位于黔中隆起北缘，西起威宁以北，向东经纳雍、大方、黔西、息烽、瓮安、施秉直抵镇远之东，大致在北纬26°25′～27°30′之间。构造形迹在中西段（息烽－纳雍间）表现最为明显，以EW向排列的“穹盆”构造（北部）和EW向断裂（南部）为其特点；东段（余庆之南－镇远以东）则以EW向断裂占主导地位。从整体看，构造形迹断续跳跃，以其横向延伸格局横亘贵州中部，脉络清晰可见，虽然它们沉淀着加里东构造阶段EW向构造──黔中隆起的色彩，但其历史定位仍属燕山构造阶段的产物。
The EW tectonic belt in the central part of Guizhou is located in the northern margin of the Qianzhong uplift, to the north of Weining in the west and to the east of Zhenyuan in the east by Nayong, generous, Qianxi, Xifeng, Weng’an and Shih-bing, roughly at latitude 26 ° 25 ’ ~ 27 ° 30 ’. Tectonic features are most obvious in the middle and western segments (Xifeng-Nayong), characterized by EW-oriented “dome” structure (north) and EW fault (south); the eastern segment East) is the dominant EW fracture. As a whole, the tectonic tracks jump intermittently with its horizontal extension pattern lying in the middle of Guizhou. The veins are clearly visible. Although they have precipitated the EW tectonics in the Caledonian structural phase - the color of the Qianzhong uplift, its historical location is still Yanshanian The product of the stage.