Evolution of denudation during the growth of a thrust-fold range: A case study from the Yumu Shan, NE Tibetan Plateau

doi:10.1016/j.palaeo.2025.112909

	Evolution of denudation during the growth of a thrust-fold range: A case study from the Yumu Shan, NE Tibetan Plateau
	Wu, Jiakun 1,2; Zhao, Qiming 2; Pan, Baotian 2; Granger, Darryl E.3; Wen, Zhenling4 ; Zhang, Jiaxin 5
	2025-06-15
发表期刊	PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
卷号	668
摘要	Understanding the spatio-temporal pattern of denudation rates is critical for elucidating the impact of tectonics and climate on the landscape evolution of active thrust-fold ranges. The Yumu Shan, located on the northeastern margin of the Tibetan Plateau, is a typical example of a young and active thrust-fold range. The late Cenozoic sediments surrounding the range have recorded the history of denudation since its initial uplift at similar to 3 Ma. By analyzing the lithology, roundness, and clast orientation of gravel sediments on the northern flank, in combination with cosmogenic nuclide burial dating and apatite fission track (AFT) thermochronology, we have reconstructed the denudation history and changes of denudation rates in the Yumu Shan since 3 Ma. The results reveal that the denudation rates in the main range of the Yumu Shan were greater than 400 mm/ka during 3.0-1.8 Ma. Since 1.8 Ma, the rate of denudation decreased rapidly to similar to 60-140 mm/ka, followed by a slight increase to similar to 100-220 mm/ka after 1.0 Ma. By comparing these rates with potential controlling factors, such as rock uplift and climate, we conclude that the change in bedrock resistance was the primary factor driving the rapid decrease in denudations rates between 3.0 and 1.0 Ma, while the increase in topographic relief due to tectonic deformation likely controlled the gradual rise in denudations rates since 1.8 Ma. Furthermore, by comparing with other active thrust-fold ranges worldwide, we propose a simplified spatio-temporal evolution model for denudation rates in active thrust-fold ranges. This model provides a framework for understanding the relationship between the tectonic, climate and surface processes in such regions.
关键词	Thrust-fold range Paleo-denudation rates Fluvial sediments Cosmogenic nuclide
DOI	10.1016/j.palaeo.2025.112909
收录类别	SCIE
ISSN	0031-0182
语种	英语
WOS研究方向	Physical Geography ; Geology ; Paleontology
WOS类目	Geography, Physical ; Geosciences, Multidisciplinary ; Paleontology
WOS记录号	WOS:001459077400001
出版者	ELSEVIER
原始文献类型	Article
EISSN	1872-616X
引用统计	被引频次[WOS]：0 [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.lzufe.edu.cn/handle/39EH0E1M/38927
专题	财税与公共管理学院
通讯作者	Wu, Jiakun; Pan, Baotian
作者单位	1.Xian Univ Sci & Technol, Coll Geol & Environm, Xian 710054, Peoples R China; 2.Lanzhou Univ, Coll Earth & Environm Sci, Key Lab Western Chinas Environm Syst, Minist Educ, Lanzhou 730000, Peoples R China; 3.Purdue Univ, Dept Earth Atmospher & Planetary Sci, W Lafayette, IN 47907 USA; 4.Lanzhou Univ Finance & Econ, Lanzhou 730101, Peoples R China; 5.Tianjin Univ, Inst Surface Earth Syst Sci, Sch Earth Syst Sci, Tianjin 300072, Peoples R China
推荐引用方式 GB/T 7714	Wu, Jiakun,Zhao, Qiming,Pan, Baotian,et al. Evolution of denudation during the growth of a thrust-fold range: A case study from the Yumu Shan, NE Tibetan Plateau[J]. PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,2025,668.
APA	Wu, Jiakun,Zhao, Qiming,Pan, Baotian,Granger, Darryl E.,Wen, Zhenling,&Zhang, Jiaxin.(2025).Evolution of denudation during the growth of a thrust-fold range: A case study from the Yumu Shan, NE Tibetan Plateau.PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,668.
MLA	Wu, Jiakun,et al."Evolution of denudation during the growth of a thrust-fold range: A case study from the Yumu Shan, NE Tibetan Plateau".PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY 668(2025).