New Ar-40/Ar-39 dating results from the Shanwang Basin, eastern China: Constraints on the age of the Shanwang Formation and associated biota

doi:10.1016/j.pepi.2011.05.002

	New Ar-40/Ar-39 dating results from the Shanwang Basin, eastern China: Constraints on the age of the Shanwang Formation and associated biota
	He, Huaiyu 1; Deng, Chenglong 2; Pan, Yongxin 1; Deng, Tao 3; Luo, Zhaohua 4; Sun, Jimin 2; Zhu, Rixiang 2
刊名	PHYSICS OF THE EARTH AND PLANETARY INTERIORS
	2011-07-01
卷号	187 期号:1-2 页码:66-75
关键词	Ar-40/Ar-39 dating Geochronology Shanwang Formation Shanwang biota Miocene
ISSN号	0031-9201
DOI	10.1016/j.pepi.2011.05.002
文献子类	Article
英文摘要	The fluvio-lacustrine sequence of the Shanwang Basin, eastern China, preserves a rich and important terrestrial fossil fauna and flora; the exceptional preservation of these fossils reveals the dynamics of ancient mammalian ecosystems and plant biology. However, the timing of this sedimentary sequence has been the subject of debate for decades. Here we contribute to this debate by presenting the detailed results of Ar-40/Ar-39 analysis of the basalts above, below, and within the Shanwang Formation. These dates place stringent constraints on the age of Shanwang Formation and associated biota. Ar-40/Ar-39 ages obtained from basalts of the Niushan and Yaoshan Formations, which underlie and overlie the Shanwang Formation, are 21.0 +/- 2.5 Ma (2 sigma, full external error) and 17.3 +/- 1.5 Ma (2 sigma, full external error), respectively. The Ar-40/Ar-39 age of the basalt in the Shanwang Formation is 17-18 Ma. Given the age constraints of the basalts of the Yaoshan and Shanwang Formations, the age of the Shanwang biota is estimated to be ca. 17 Ma, late Burdigalian of the Early Miocene, indicating that the deposition of this fauna coincided with the onset of the mid-Miocene Climatic Optimum. The results provide new age constraints on the Shanwang mammal fauna, and independently support interpretations that this fauna can be assigned to chronozone MN4, and correlated with middle Orleanian of the European Land Mammal Age, and to late Hemingfordian of the North American Land Mammal Age. Biological diversity of the Shanwang Formation could reflect the global-scale mid-Miocene Climatic Optimum. (C) 2011 Elsevier B.V. All rights reserved.
WOS关键词	WESTERN-EUROPE ; MIOCENE ; SHANDONG ; NEOGENE ; CLIMATE ; RECONSTRUCTION ; SUBDIVISION ; EVOLUTION ; RECORDS ; FLORA
WOS研究方向	Geochemistry & Geophysics
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000293677500006
资助机构	China MOST 973 Program(2009CB825001) ; China MOST 973 Program(2009CB825001) ; National Natural Science Foundation of China(90714010 ; National Natural Science Foundation of China(90714010 ; Chinese Academy of Sciences(KZCX2-YW-Q08-2-2 ; Chinese Academy of Sciences(KZCX2-YW-Q08-2-2 ; 40821091 ; 40821091 ; KZCX2-YW-JS101 ; KZCX2-YW-JS101 ; 40925012) ; 40925012) ; KZCX2-EW-117) ; KZCX2-EW-117) ; China MOST 973 Program(2009CB825001) ; China MOST 973 Program(2009CB825001) ; National Natural Science Foundation of China(90714010 ; National Natural Science Foundation of China(90714010 ; Chinese Academy of Sciences(KZCX2-YW-Q08-2-2 ; Chinese Academy of Sciences(KZCX2-YW-Q08-2-2 ; 40821091 ; 40821091 ; KZCX2-YW-JS101 ; KZCX2-YW-JS101 ; 40925012) ; 40925012) ; KZCX2-EW-117) ; KZCX2-EW-117) ; China MOST 973 Program(2009CB825001) ; China MOST 973 Program(2009CB825001) ; National Natural Science Foundation of China(90714010 ; National Natural Science Foundation of China(90714010 ; Chinese Academy of Sciences(KZCX2-YW-Q08-2-2 ; Chinese Academy of Sciences(KZCX2-YW-Q08-2-2 ; 40821091 ; 40821091 ; KZCX2-YW-JS101 ; KZCX2-YW-JS101 ; 40925012) ; 40925012) ; KZCX2-EW-117) ; KZCX2-EW-117) ; China MOST 973 Program(2009CB825001) ; China MOST 973 Program(2009CB825001) ; National Natural Science Foundation of China(90714010 ; National Natural Science Foundation of China(90714010 ; Chinese Academy of Sciences(KZCX2-YW-Q08-2-2 ; Chinese Academy of Sciences(KZCX2-YW-Q08-2-2 ; 40821091 ; 40821091 ; KZCX2-YW-JS101 ; KZCX2-YW-JS101 ; 40925012) ; 40925012) ; KZCX2-EW-117) ; KZCX2-EW-117)
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/74478]
专题	中国科学院地质与地球物理研究所
通讯作者	He, Huaiyu
作者单位	1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Earths Deep Interior, Beijing 100029, Peoples R China 2.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Lithospher Evolut, Beijing 100029, Peoples R China 3.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Beijing 100044, Peoples R China 4.China Univ Geosci, Beijing 100083, Peoples R China
推荐引用方式 GB/T 7714	He, Huaiyu,Deng, Chenglong,Pan, Yongxin,et al. New Ar-40/Ar-39 dating results from the Shanwang Basin, eastern China: Constraints on the age of the Shanwang Formation and associated biota[J]. PHYSICS OF THE EARTH AND PLANETARY INTERIORS,2011,187(1-2):66-75.
APA	He, Huaiyu.,Deng, Chenglong.,Pan, Yongxin.,Deng, Tao.,Luo, Zhaohua.,...&Zhu, Rixiang.(2011).New Ar-40/Ar-39 dating results from the Shanwang Basin, eastern China: Constraints on the age of the Shanwang Formation and associated biota.PHYSICS OF THE EARTH AND PLANETARY INTERIORS,187(1-2),66-75.
MLA	He, Huaiyu,et al."New Ar-40/Ar-39 dating results from the Shanwang Basin, eastern China: Constraints on the age of the Shanwang Formation and associated biota".PHYSICS OF THE EARTH AND PLANETARY INTERIORS 187.1-2(2011):66-75.