Rapid exhumation of basement rocks along the northern margin of the North China craton in the early Jurassic evidence from the Xiabancheng Basin, Yanshan Tectonic Belt

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	Rapid exhumation of basement rocks along the northern margin of the North China craton in the early Jurassic evidence from the Xiabancheng Basin, Yanshan Tectonic Belt
	Liu, J (Liu, Jian); Zhao, Y (Zhao, Yue); Liu, XM (Liu, Xiaoming); Wang, Y (Wang, Yu); Liu, XW (Liu, Xiaowen)
刊名	BASIN RESEARCH
	2012
卷号	24 期号:5 页码:544-558
ISSN号	0950-091X
英文摘要	Early Mesozoic Basins in the Yanshan FoldThrust Belt (YFTB), located along the northern margin of the North China Craton (NCC), record significant intraplate deformation of unknown age. In this article, we present evidence for the rapid exhumation of high-grade basement rocks along the northern margin of the NCC in the Early Mesozoic. UPb geochronology of detrital zircons constrains the maximum depositional ages of syntectonic sedimentary units that formed during the unroofing of basement rocks and plutons in the Xiabancheng Basin. In the Early Mesozoic, the Xiabancheng Basin recorded a dramatic transformation in depositional environments, related to a significant change in the regional tectonic setting. In this study, the tectonic evolution of the YFTB is established from paleocurrent data and UPb zircon ages of sandstone and granitic gravels of the Xingshikou Formation, Xiabancheng Basin. The paleocurrent direction of meandering fluvial facies in the Triassic Liujiagou and Ermaying Formations are from east to west. In contrast, the overlying Xingshikou Formation consists of alluvial fan facies with paleocurrent directions from north-northwest to south-southeast. The lower and middle segments of the Xingshikou Formation record rapid exhumation of basement rocks along the northern margin of the NCC. U-Pb ages of detrital zircons within the Xingshikou Formation are characterized by three major UPb age groups 2.22.5 Ga, 1.71.8 Ga and 193356 Ma. From 193 Ma to 356 Ma, a subsidiary peak occurs at 198 +/- 5 Ma, constraining the sedimentation age of the Xingshikou Formation to the Early Jurassic. Zircon from the Wangtufang pluton in the northern portion of the Xiabancheng Basin yields UPb ages of 191 +/- 1 Ma and 207 +/- 1 Ma. Within error, these crystallization ages are identical to detrital zircon ages of 206 +/- 1 Ma and 206 +/- 2 Ma obtained for granitic gravel clasts in the Xingshikou Formation. Thus, the Wangtufang pluton and surrounding basement rocks must have experienced rapid uplift and exhumation during the Early Jurassic. The onset of exhumation along the northern margin of the NCC occurred at ca. 198180 Ma.
学科主题	地层学与地史学
WOS关键词	THRUST BELT ; DETRITAL RECORD ; HEBEI PROVINCE ; NE CHINA ; EVOLUTION ; ZIRCON ; OROGEN ; UPLIFT ; SEDIMENTATION ; PETROGENESIS
WOS研究方向	Geology
语种	英语
出版者	WILEY-BLACKWELL
WOS记录号	WOS:000308400700003
内容类型	期刊论文
源URL	[http://119.78.100.197/handle/2HKVOGP0/39867]
专题	中国地质调查局
作者单位	Minist Land & Resources, Ctr Geol Mat, Sanhe, Hebei, Peoples R China
推荐引用方式 GB/T 7714	Liu, J ,Zhao, Y ,Liu, XM ,et al. Rapid exhumation of basement rocks along the northern margin of the North China craton in the early Jurassic evidence from the Xiabancheng Basin, Yanshan Tectonic Belt[J]. BASIN RESEARCH,2012,24(5):544-558.
APA	Liu, J ,Zhao, Y ,Liu, XM ,Wang, Y ,&Liu, XW .(2012).Rapid exhumation of basement rocks along the northern margin of the North China craton in the early Jurassic evidence from the Xiabancheng Basin, Yanshan Tectonic Belt.BASIN RESEARCH,24(5),544-558.
MLA	Liu, J ,et al."Rapid exhumation of basement rocks along the northern margin of the North China craton in the early Jurassic evidence from the Xiabancheng Basin, Yanshan Tectonic Belt".BASIN RESEARCH 24.5(2012):544-558.