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(汪筱林); Zhou, ZH（周忠和）; Jin, F; Wang, F; Yang, LK; Ding, X; Boven, A; Zhu, RX; He, HY (reprint author), Chinese Acad Sci, Inst Geol & Geophys, Lab Paleomagnetism & Geochronol SKL LE, Beijing 100029, Peoples R China.
	2006
发表期刊	GEOPHYSICAL RESEARCH LETTERS
ISSN	0094-8276
卷号	33 期号:4 页码:—
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.
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文献类型	期刊论文
条目标识符	http://119.78.100.205/handle/311034/3477
专题	中科院古脊椎所（2000年以后）
通讯作者	He, HY (reprint author), Chinese Acad Sci, Inst Geol & Geophys, Lab Paleomagnetism & Geochronol SKL LE, Beijing 100029, 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.,...&He, HY .(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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