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, Huaiyu1; Deng, Chenglong2; Pan, Yongxin1; Deng, Tao3; Luo, Zhaohua4; Sun, Jimin2; Zhu, Rixiang2 | |
刊名 | PHYSICS OF THE EARTH AND PLANETARY INTERIORS
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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. |
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