摘要
唐古拉山是青藏高原腹地中最大、最具代表性的山脉,唐古拉山北坡发育着一系列河流阶地,该地区河流阶地的成因分析表明:构造隆升控制了唐古拉山北坡河流阶地的形成与发展,因而该地区河流下切速率对唐古拉山的隆升具有一定的指示意义。在实测的基础上,根据阶地的拔河高度、形成年代等数据,定量计算唐古拉山北坡不同河流不同时期的下切速率,从而为唐古拉山的隆升研究提供科学依据。结果表明:唐古拉山自西向东隆升速率逐渐增大,同一地点由老到新隆升速率逐渐减小。进而得出:青藏高原腹地山脉的隆升速率、隆升变化趋势与青藏高原边缘山地明显不同。
Tanggula Mountain is the most representative mountain in Central Tibetan Plateau. There are a series of river terraces on the north slope of Tanggula Mountain. The analysis of river terraces shows that formation of river terraces on the north slope of Tanggula Mountain is controlled by tectonic uplift, the rivers incision rate may be regarded as an indicator for Tanggula Mountain＇s uplift. The rivers incision rate on the north slope of Tanggula Mountain is calculated,which provides scientific basis for the study on Tanggula Mountain＇s uplift. Uplifting rate of Tanggula Mountain increases gradually from the west to east, but decreases gradually from the earlier to the later. Uplifting rate of mountains in the hinterland of the Tibetan Plateau is different from that in the margin of the Tibetan Plateau.
出处
《广西师范大学学报（自然科学版）》
CAS
北大核心
2009年第2期89-93,共5页
Journal of Guangxi Normal University:Natural Science Edition
基金
国家自然科学基金资助项目(40772111)
关键词
唐古拉山北坡
河流阶地
构造隆升
north slope of Tanggula Mountain
river terraces
tectonic uplift
