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位于开平向斜西翼的唐山—丰南推覆构造是印支—燕山运动期间华北板块向太平洋板块仰冲的产物,它由三条大致平行的逆冲断层构成,其中F_3上盘推覆体平移距离约2.5km。这些逆冲断层的存在对找煤有重要的意义。
The Tangshan-Fengnan nappe structure located at the west wing of the Kaiping syncline is a product of the upwelling of the North China plate to the Pacific plate during the Indosinian-Yanshanian movement. It consists of three roughly parallel thrust faults, of which the F_3 upper plate nappe translates About 2.5km. The existence of these thrust faults is of great significance to finding coal.