地质力学学报2017，Vol.23Issue(2)：264-271,8.
西南天山乌什北山高山峡谷地貌形成过程
THE LANDFORM FORMATION PROCESS OF ALPINE-GORGE IN BEISHAN, WUSHI COUNTY, SOUTHWESTERN TIANSHAN
摘要
Abstract
The geomorphological evolutionisbasically influenced by the tectonic and its regular pattern. Based on the observation of Quaternary deposit and erosional landform of Gunguntielieke river valley in Beishan, Wushi County, Southwest Tianshan, combing with the published stratigraphic chronology, the evolution of erosive geomorphic in Middle Pleistocene and Holocene are reproduced. In Middle Pleistocene, the geomorphological cutting depth is more than 1870 m, which is much deeper than 50 m in Holocene and it is believed that the alpine-gorge in this area was formed in Middle Pleistocene. Generally developed Middle Pleistocene fold thrust structure in Southwest Tianshan, resulting in the rapid and substantial mountainuplift, is the main cause of the alpine-gorge geomorphology in Beishan. The fold thrust structures extended to the basin, which led to the decrease of amplitude of the uplift of the mountain to the basin. It reveals the spatial regularity of the geomorphological evolution in Beishan. There is a close relationship between the process of Quaternary tectonic uplift and geomorphological evolution in Southwest Tianshanmountainaccording to this stuty.关键词
西南天山/乌什/中更新世/高山峡谷地貌/隆升/地貌演化Key words
Southwest Tianshan/Wushi/Middle Pleistocene/alpine-gorge/uplift/geomorphological evolution分类
天文与地球科学引用本文复制引用
陈锐明,査显锋,辜平阳,庄玉军..西南天山乌什北山高山峡谷地貌形成过程[J].地质力学学报,2017,23(2):264-271,8.基金项目
中国地质调查局地质调查项目"特殊地质地貌区填图试点"(DD20160060) （DD20160060）
新疆1:5万喀伊车山口等3幅艰险区试点项目(12120114042701) （12120114042701）
青海阿尔金1:5万打柴沟等6幅区调(1212011121193) （1212011121193）
