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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 (IF:4.339[JCR-2017],4.692[5-Year])
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
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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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