太行山、燕山山地中的深切曲流河谷形成于第四纪。它是在上新世曲流宽谷的基础上深切形成。上新世曲流宽谷代表该时期的太行山、燕山还是一个丘陵—宽谷平原的地貌。如今已上升成为海拔１３００ｍ ～２２００ｍ 的山地。说明太行山、燕山主要隆起于第四纪。其隆起幅度分别是１１００ｍ ～１５００ｍ 和６００～１０００ｍ ，隆起速度分别是０．４４～０．６０ｍ ｍ ／ａ 和０．２４～０．４０ｍ ｍ ／ａ。第四纪隆起幅度均占该山地总隆起幅度的６０％ ～７０％ 。 Taihang Mountains, Yanshan Mountains in the deep meandering valley formed in the Quaternary. It is deeply rooted on the basis of the Pleistocene meltwater. The Pleistocene Qutu Kantu represents the Taihang Mountains during this period. Yanshan is still the landform of the hills and valleys. It has now risen to an altitude of 1300m ~ 2200m in the mountains. Description Taihang Mountains, Yanshan uplift in the Quaternary. The uplift amplitude is 1100m ~ 1500m and 600 ~ 1000m respectively, and the uplift velocities are 0.44 ~ 0.60m / a and 0.24 ~ 0.40m / a, respectively. Quaternary uplift rates account for the mountain uplift of the total range of 60% to 70%.