Quantitative geomorphological constraints on the landform evolution of the current active boundary of the northeastern Tibetan Plateau
Quantitative geomorphological constraints on the landform evolution of the current active boundary of the northeastern Tibetan Plateau
复制标题
青藏高原东北部现今活动边界地貌演化的定量地貌约束
DOI：
10.1016/j.geomorph.2020.107120
复制
发表时间：
2020-06
期刊：
影响因子：
3.9
通讯作者：
Weitao Wang
中科院分区：
文献类型：
--
作者：
Jingjun Yang;Wenjun Zheng;Yang Wang;Haiyun Bi;Dongli Zhang;Peizhen Zhang;Gan Chen;Weitao Wang
河西走廊沿着青藏高原东北缘，构成其北方边界。该地区晚新生代构造和景观演化是理解青藏高原生长的关键。本文对河西走廊最外围的鹤立山南翼36个流域的河流剖面形态进行了研究。在这里，基岩河道被陡峭的下游河道和坡度较低的上段分割。综合构造、气候、岩性和河流改造等因素，表明该区经历了构造加速隆升的过程。我们约束的响应时间的断点演化的基础上的断点celestry模型和重建古河道剖面。结合祁连山（10 Ma）和榆木山（4 Ma）的生长起始年龄，我们认为河西走廊和合力山在0.6- 2.1Ma前受到青藏高原向外生长的影响。
The Hexi Corridor lies along the northeastern margin of the Tibetan Plateau forming its northern boundary. The late Cenozoic tectonic and landscape evolution of this area are key to understanding the growth of the Tibetan Plateau. We investigate the river profile morphology of 36 drainage areas located on the southern flanks of the Heli Shan, which is the outermost range of the Hexi Corridor. Here, bedrock channels are segmented by steep downstream channels and upper segments with lower gradients. A synthesis of tectonics, climate, lithology, and river reorganization indicates that this area has experienced accelerated tectonic uplift. We constrain the response times for knickpoint evolution based on a knickpoint celerity model and reconstruct paleo-channel profiles. Combined with onset ages for the growth of the Qilian Shan (10 Ma) and Yumu Shan (4 Ma), we propose that the Hexi Corridor and Heli Shan were affected by the outward growth of the Tibetan Plateau at 0.6–2.1 Ma ago.
登录
查看更多内容
青藏高原东北部新近纪-第四纪气候演化的综合生物标志物视角：对亚洲干旱化的影响
影响因子：
2.2
作者：
Peng Tingjiang;Li Jijun;Song Chunhui;Guo Benhong;Liu Jia;Zhao Zhijun;Zhang Jun
通讯作者：
Zhang Jun
影响因子：
2.9
作者：
Yizhou Wang;D. Zheng;Huiping Zhang;Chaopeng Li;Linxiang Xiao;Youjuan Li;Y. Hao
通讯作者：
Yizhou Wang;D. Zheng;Huiping Zhang;Chaopeng Li;Linxiang Xiao;Youjuan Li;Y. Hao
影响因子：
3
作者：
Xi-wei Xu;R. Yeats;Gui-hua Yu
通讯作者：
Xi-wei Xu;R. Yeats;Gui-hua Yu
DOI：
--
发表时间：
2018
期刊：
--
影响因子：
--
作者：
S. Boulton;M. Stokes
通讯作者：
S. Boulton;M. Stokes
影响因子：
5.8
作者：
A. Rohrmann;P. Kapp;B. Carrapa;P. Reiners;J. Guynn;L. Ding;M. Heizler
通讯作者：
A. Rohrmann;P. Kapp;B. Carrapa;P. Reiners;J. Guynn;L. Ding;M. Heizler