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SIMS U-Pb zircon age of a tuff layer in the Meishucun section, Yunnan, southwest China: Constraint on the age of the Precambrian-Cambrian boundary

文献类型：期刊论文

作者Zhu RiXiang1; Li XianHua1; Hou XianGuang2; Pan YongXin; Wang Fei1; Deng ChengLong1; He HuaiYu3
刊名SCIENCE IN CHINA SERIES D-EARTH SCIENCES
出版日期2009-09-01
卷号52期号:9页码:1385-1392
ISSN号1006-9313
关键词Meishucun section U-Pb geochronology Precambrian-Cambrian boundary
DOI10.1007/s11430-009-0152-6
文献子类Article
英文摘要Determination of the age of the Precambrian-Cambrian boundary is critical in understanding early evolution of life on Earth. SIMS U-Pb zircon analyses of the Bed 5 tuff layer of the Meishucun section were carried out closely following the guidance of cathodoluminescence images, and the majority of analyses were conducted on the oscillatory zircon grains. Thirteen measurements yield a highly reliable Concordia U-Pb age of 536.7 +/- 3.9 Ma for the Bed 5 horizon. A grand mean of (206)Pb/(238)U age of 535.2 +/- 1.7 Ma (MSWD = 0.53) is calculated based on 13 concordant SIMS measurements of this study and 4 nano-SIMS measurements of Sawaki et al., which is the best estimate of the deposition age of the tuff layer within Bed 5 in the Meishucun section. This age has provided a robust age constraint on the significant Precambrian-Cambrian boundary strata in southern China, which independently suggested the placement of the Precambrian-Cambrian boundary at the bottom of the Xiaowaitoushan Member (Marker A).
WOS关键词EARLY ANIMAL EVOLUTION ; YANGTZE PLATFORM ; ISOTOPE STRATIGRAPHY ; GEOCHRONOLOGY ; PHOSPHORITES ; RODINIA ; CARBON ; TIME
WOS研究方向Geology
语种英语
出版者SCIENCE PRESS
WOS记录号WOS:000269974200010
资助机构National Natural Science Foundation of China(40730211 ; National Natural Science Foundation of China(40730211 ; National Natural Science Foundation of China(40730211 ; National Natural Science Foundation of China(40730211 ; 40821091) ; 40821091) ; 40821091) ; 40821091) ; National Natural Science Foundation of China(40730211 ; National Natural Science Foundation of China(40730211 ; National Natural Science Foundation of China(40730211 ; National Natural Science Foundation of China(40730211 ; 40821091) ; 40821091) ; 40821091) ; 40821091) ; National Natural Science Foundation of China(40730211 ; National Natural Science Foundation of China(40730211 ; National Natural Science Foundation of China(40730211 ; National Natural Science Foundation of China(40730211 ; 40821091) ; 40821091) ; 40821091) ; 40821091) ; National Natural Science Foundation of China(40730211 ; National Natural Science Foundation of China(40730211 ; National Natural Science Foundation of China(40730211 ; National Natural Science Foundation of China(40730211 ; 40821091) ; 40821091) ; 40821091) ; 40821091)
源URL[http://ir.iggcas.ac.cn/handle/132A11/71686]  
专题中国科学院地质与地球物理研究所
通讯作者Zhu RiXiang
作者单位1.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China
2.Yunnan Univ, Yunnan Key Lab Palaeobiol, Kunming 650091, Peoples R China
3.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Earths Deep Interior, Beijing 100029, Peoples R China
推荐引用方式
GB/T 7714		 Zhu RiXiang,Li XianHua,Hou XianGuang,et al. SIMS U-Pb zircon age of a tuff layer in the Meishucun section, Yunnan, southwest China: Constraint on the age of the Precambrian-Cambrian boundary[J]. SCIENCE IN CHINA SERIES D-EARTH SCIENCES,2009,52(9):1385-1392.
APA Zhu RiXiang.,Li XianHua.,Hou XianGuang.,Pan YongXin.,Wang Fei.,...&He HuaiYu.(2009).SIMS U-Pb zircon age of a tuff layer in the Meishucun section, Yunnan, southwest China: Constraint on the age of the Precambrian-Cambrian boundary.SCIENCE IN CHINA SERIES D-EARTH SCIENCES,52(9),1385-1392.
MLA Zhu RiXiang,et al."SIMS U-Pb zircon age of a tuff layer in the Meishucun section, Yunnan, southwest China: Constraint on the age of the Precambrian-Cambrian boundary".SCIENCE IN CHINA SERIES D-EARTH SCIENCES 52.9(2009):1385-1392.

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来源：地质与地球物理研究所

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