摘要
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％ 。
In the Tathang and Yan Mountains,incised and meandering valleys formed in Quarternary.Incised valleys formed on the basis of meandering and broad valley of Pliocene epoch.The meandering and broad valleys of Pliocene epoch indicated that the Taihang and Yan Mountains were the geomorphologic landscape of hills and broad plam in that cpoch.At present,they have risen and fomred the mountains at the levels of 1300～2200m.Above evolution of landform showed that the Taihang and Yan Mountains rose mainly in Quarternary.The upliftcd cxtent is respcectively 110～1500m and 600～1000m,the upliftod rate is respcctively 0.44～0.60mm/a and 0.24～0.40mm/a.The uplifted extent in Quarternary accounts for 60～70% of the total uplifted quantity.
出处
《华北地震科学》
1999年第3期1-7,共7页
North China Earthquake Sciences
基金
河北省自然科学基金
关键词
太行山
燕山
第四纪
新构造运动
隆起运动
Taihang Mountain
Yan Mountain
Quarternary
neotectonics
uplift movement
