Provenance of detrital K-feldspar in Jianghan Basin sheds new light on the Pliocene-Pleistocene evolution of the Yangtze River

doi:10.1130/B31445.1

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	Provenance of detrital K-feldspar in Jianghan Basin sheds new light on the Pliocene-Pleistocene evolution of the Yangtze River
	Zhang, Zengjie 1,2,3; Tyrrell, Shane 4; Li, Chang'an 1; Daly, J. Stephen 2,3; Sun, Xilin 1,5; Blowick, Aoife 2,3; Lin, Xu 6
刊名	GEOLOGICAL SOCIETY OF AMERICA BULLETIN
	2016-09-01
卷号	128 期号:9-10 页码:1339-1351
DOI	10.1130/B31445.1
文献子类	Article
英文摘要	The Yangtze River is the largest fluvial system draining the Tibetan Plateau, yet its time of formation-pre-Miocene versus Pleistocene-has been debated for more than a century, with a particular focus on the incision of the Three Gorges. In this study, we used laser-ablation-multiple -collector-inductively coupled plasmamass spectrometry (LA-MC-ICP-MS) to measure Pb isotope compositions of detrital K-feldspars from Pliocene-Pleistocene sediments in the Jianghan Basin, located just downstream of the Three Gorges. Our new Pb results indicate that feldspars from the Songpan-Ganzi terrane were already being delivered to the Jianghan Basin by ca. 3.4 Ma. Therefore, we suggest that the Three Gorges was incised prior to the late Pliocene. Moreover, the Pb isotopic data also record the first delivery of detritus from the Hanjiang River, one of the Yangtze's largest tributaries in the middle reaches, into the Jianghan Basin at ca. 1.8 Ma. Most K-feldspar grains from the mid-late Pleistocene samples have similar Pb isotopic compositions to those from the major tributaries in the upper reaches, i.e., Minjiang and Jialingjiang Rivers, indicating that the eastern Tibetan Plateau, as the major sediment supplier to the Jianghan Basin and mid-lower Yangtze River, has played a key role in the sediment source-to-sink transport of this river. This study sheds light on the factors that control the supply of detrital K-feldspar in large-scale drainage systems.
WOS关键词	ND ISOTOPIC COMPOSITIONS ; EASTERN TIBETAN PLATEAU ; LATE CENOZOIC SEDIMENTS ; GARZE FOLD BELT ; PB ZIRCON AGES ; 3 GORGES BEGIN ; TECTONIC EVOLUTION ; CORE SEDIMENTS ; CHANGJIANG DELTA ; CENTRAL CHINA
WOS研究方向	Geology
语种	英语
WOS记录号	WOS:000382521100002
资助机构	National Natural Science Foundation of China(41440002) ; National Natural Science Foundation of China(41440002) ; Science Foundation Ireland(04/BR/ES0007/EC07) ; Science Foundation Ireland(04/BR/ES0007/EC07) ; National Natural Science Foundation of China(41440002) ; National Natural Science Foundation of China(41440002) ; Science Foundation Ireland(04/BR/ES0007/EC07) ; Science Foundation Ireland(04/BR/ES0007/EC07)
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/53330]
专题	地质与地球物理研究所_其他部门
作者单位	1.China Univ Geosci, Sch Earth Sci, Wuhan 430074, Peoples R China 2.Univ Coll Dublin, UCD Sch Earth Sci, Dublin 4, Ireland 3.Univ Coll Dublin, UCD Earth Inst, Dublin 4, Ireland 4.Natl Univ Ireland, Sch Nat Sci, Earth & Ocean Sci, Galway, Ireland 5.Vrije Univ Amsterdam, Fac Earth & Life Sci, De Boelelaan 1085, Amsterdam, Netherlands 6.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Zengjie,Tyrrell, Shane,Li, Chang'an,et al. Provenance of detrital K-feldspar in Jianghan Basin sheds new light on the Pliocene-Pleistocene evolution of the Yangtze River[J]. GEOLOGICAL SOCIETY OF AMERICA BULLETIN,2016,128(9-10):1339-1351.
APA	Zhang, Zengjie.,Tyrrell, Shane.,Li, Chang'an.,Daly, J. Stephen.,Sun, Xilin.,...&Lin, Xu.(2016).Provenance of detrital K-feldspar in Jianghan Basin sheds new light on the Pliocene-Pleistocene evolution of the Yangtze River.GEOLOGICAL SOCIETY OF AMERICA BULLETIN,128(9-10),1339-1351.
MLA	Zhang, Zengjie,et al."Provenance of detrital K-feldspar in Jianghan Basin sheds new light on the Pliocene-Pleistocene evolution of the Yangtze River".GEOLOGICAL SOCIETY OF AMERICA BULLETIN 128.9-10(2016):1339-1351.