Timing of the Jiufotang Formation (Jehol Group) in Liaoning, northeastern China, and its implications

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	Timing of the Jiufotang Formation (Jehol Group) in Liaoning, northeastern China, and its implications
	He, HY ; Wang, XL ; Zhou, ZH; Wang, F ; Boven, A ; Shi, GH ; Zhu, RX
	2004-06-18
发表期刊	GEOPHYSICAL RESEARCH LETTERS
卷号	31 期号:12
文章类型	Article
摘要	The timing of the Jiufotang Formation remains speculative despite recent progress in the study of the Jehol Biota. In this paper we contribute to this topic with Ar-40/Ar-39 dating on K-feldspar (sanidine and orthoclase) from tuffs interbedded within the fossil-bearing shales of the Jiufotang Formation, from the upper part of the Jehol Group in Chaoyang, Liaoning, northeastern China. Ar-40/(39) Ar step heating analyses of K-feldspar and the SHRIMP U-Pb zircon data indicate that tuffs at the Shangheshou section erupted at 120.3 +/- 0.7 million years ago. This result confirms an Aptian age for the Jiufotang Formation that was mainly based on biostratigraphic evidence. It also places stringent controls on the age of the fossils from the formation, providing a minimum age (120 Ma) for the four-winged dinosaur, Microraptor, and the seed-eating bird, Jeholornis.
WOS标题词	Science & Technology ; Physical Sciences
关键词[WOS]	CRETACEOUS AGE ; DINOSAUR ; BIRD
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:000222325100004
引用统计	被引频次：116[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://119.78.100.205/handle/311034/2054
专题	古低等脊椎动物研究室
作者单位	1.Inst Geol & Geophys, Beijing 100029, Peoples R China 2.Univ Libre Brussels, B-1050 Brussels, Belgium 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. Timing of the Jiufotang Formation (Jehol Group) in Liaoning, northeastern China, and its implications[J]. GEOPHYSICAL RESEARCH LETTERS,2004,31(12).
APA	He, HY.,Wang, XL.,Zhou, ZH.,Wang, F.,Boven, A.,...&Zhu, RX.(2004).Timing of the Jiufotang Formation (Jehol Group) in Liaoning, northeastern China, and its implications.GEOPHYSICAL RESEARCH LETTERS,31(12).
MLA	He, HY,et al."Timing of the Jiufotang Formation (Jehol Group) in Liaoning, northeastern China, and its implications".GEOPHYSICAL RESEARCH LETTERS 31.12(2004).

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