Stream response to Quaternary tectonic and climatic change: Evidence   from the upper Weihe River, central China

doi:10.1016/j.quaint.2007.08.046

CORC > 北京大学 > 城市与环境学院

	Stream response to Quaternary tectonic and climatic change: Evidence from the upper Weihe River, central China
	Gao, Hongshan ; Liu, Xiaofeng ; Pan, Baotian ; Wang, Yong ; Yu, Yongtao ; Li, Jijun
刊名	quaternary international
	2008
关键词	NORTHWEST CHINA TIBET PLATEAU QINLING SHAN YELLOW-RIVER LOESS UPLIFT TERRACES ARCHIVE RECORD BASIN
DOI	10.1016/j.quaint.2007.08.046
英文摘要	Seven terraces of upper Weihe River in the Longxi Basin on the north flank of the Qinling Mountains are capped with a succession of loess units and paleosols that correlate with the standard marine isotope chronology. Based on fieldwork and terrace ages, which were determined using loess-paleosol stratigraphy, paleomagnetic, optical stimulated luminescence (OSL) and radiocarbon dating, the results show that the fluvial fills were deposited during marine oxygen isotope stages (MISs) 22, 20, 18/16, 12, 6, 4 and 2, respectively, whereas terracing occurred during glacial-interglacial transitions. This, in turn, points to eccentricity-related climatic changes that may have driven recurrent incision and aggradation processes and significantly influenced the formation of staircase terraces of Weihe River, through the direct and indirect influence of both temperature and precipitation on fluviatile activity. On the basis of terrace ages and its heights, incision rates were enhanced from 865 to 412 ka (similar to 0.27 m/ka), decreased from 412 to 128 ka (similar to 0.09 m/ka), and increased from 128 ka to present (similar to 0.32 m/ka). (C) 2008 Elsevier Ltd and INQUA. All rights reserved.; Geography, Physical; Geosciences, Multidisciplinary; SCI(E); 0; ARTICLE; 123-131; 186
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/248333]
专题	城市与环境学院
推荐引用方式 GB/T 7714	Gao, Hongshan,Liu, Xiaofeng,Pan, Baotian,et al. Stream response to Quaternary tectonic and climatic change: Evidence from the upper Weihe River, central China[J]. quaternary international,2008.
APA	Gao, Hongshan,Liu, Xiaofeng,Pan, Baotian,Wang, Yong,Yu, Yongtao,&Li, Jijun.(2008).Stream response to Quaternary tectonic and climatic change: Evidence from the upper Weihe River, central China.quaternary international.
MLA	Gao, Hongshan,et al."Stream response to Quaternary tectonic and climatic change: Evidence from the upper Weihe River, central China".quaternary international (2008).