Ar-40/Ar-39 dating of lujiatun bed (Jehol group) in Liaoning, northeastern China

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	Ar-40/Ar-39 dating of lujiatun bed (Jehol group) in Liaoning, northeastern China
	He, HY ; Wang, XL ; Zhou, ZH; Jin, F ; Wang, F ; Yang, LK ; Ding, X ; Boven, A ; Zhu, RX ; huaiyuhe@mail.igcas.ac.cn
	2006-02-24
发表期刊	GEOPHYSICAL RESEARCH LETTERS
ISSN	0094-8276
卷号	33 期号:4
文章类型	Article
摘要	The Lujiatun bed of the Yixian Formation is famous for its extraordinary preservation of three-dimensional fossils and its implication for the most dramatic catastrophic mass mortality event in the Jehol Biota. The precise age of the fossil bearing deposits, however, remains to be established. Ar-40/Ar-39 step heating analyses on bulk K-feldspars from the fossil bearing tuff gave a weighted mean age of 123.2 +/- 1.0 Ma (2 sigma). This date suggests the Lujiatun bed was most likely deposited at about the same time as the Jianshangou bed of the lower Yixian Formation, representing a stage when the dinosaurs displayed the most significant radiation in the Early Cretaceous.
关键词	Yixian Formation Early Evolution Cretaceous Age Dinosaur
WOS标题词	Science & Technology ; Physical Sciences
URL	查看原文
关键词[WOS]	YIXIAN FORMATION ; EARLY EVOLUTION ; CRETACEOUS AGE ; DINOSAUR
收录类别	SCI
语种	英语
WOS研究方向	Geology
WOS类目	Geosciences, Multidisciplinary
WOS记录号	WOS:000235965600002
引用统计
文献类型	期刊论文
条目标识符	http://119.78.100.205/handle/311034/5021
专题	中科院古脊椎所（2000年以后）古低等脊椎动物研究室
通讯作者	huaiyuhe@mail.igcas.ac.cn
作者单位	1.Chinese Acad Sci, Inst Geol & Geophys, Lab Paleomagnetism & Geochronol SKL LE, Beijing 100029, Peoples R China 2.China Univ Geosci, Marine Sch, Beijing 100083, Peoples R China 3.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Beijing 100044, Peoples R China
推荐引用方式 GB/T 7714	He, HY,Wang, XL,Zhou, ZH,et al. Ar-40/Ar-39 dating of lujiatun bed (Jehol group) in Liaoning, northeastern China[J]. GEOPHYSICAL RESEARCH LETTERS,2006,33(4).
APA	He, HY.,Wang, XL.,Zhou, ZH.,Jin, F.,Wang, F.,...&huaiyuhe@mail.igcas.ac.cn.(2006).Ar-40/Ar-39 dating of lujiatun bed (Jehol group) in Liaoning, northeastern China.GEOPHYSICAL RESEARCH LETTERS,33(4).
MLA	He, HY,et al."Ar-40/Ar-39 dating of lujiatun bed (Jehol group) in Liaoning, northeastern China".GEOPHYSICAL RESEARCH LETTERS 33.4(2006).

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