IEECAS OpenIR  > 黄土与第四纪地质国家重点实验室(2010~)
Link between global cooling and mammalian transformation across the Eocene-Oligocene boundary in the continental interior of Asia
Zhang, R (Zhang, Rui)1,2; Kravchinsky, VA (Kravchinsky, Vadim A.)1; Yue, LP (Yue, Leping)2,3
2012-11-30
Source PublicationINTERNATIONAL JOURNAL OF EARTH SCIENCES
Volume101Issue:8Pages:2193-2200
Subtype期刊论文
Abstract

Evidence in the world's ocean current system indicates an abrupt cooling from 34.1 to 33.6 Ma across the Eocene-Oligocene boundary at 33.9 Ma. The remarkable cooling period in the ocean, called the Eocene-Oligocene transition (EOT), is correlated with pronounced mammalian faunal replacement as shown in terrestrial fossil records. For the first time within Asia, a section is magnetostratigraphically dated that also produces mammalian fossils that span the Late Eocene-Early Oligocene transition. Three fossil assemblages revealed through the EOT (34.8, 33.7, and 30.4 Ma) demonstrate that perissodactyl faunas were abruptly replaced by rodent/lagomorph-dominant faunas during climate cooling, and that changes in mammalian communities were accelerated by aridification in central Asia. Three fossil assemblages (34.8, 33.7, and 30.4 Ma) within the north Junggar Basin (Burqin section) tied to this magnetostratigraphically dated section, reveal that perissodactyl faunas were abruptly replaced by rodent/lagomorph-dominant faunas during climate cooling, and that changes in mammalian communities were accelerated by aridification in central Asia. The biotic reorganization events described in the Burqin section are comparable to the Grande Coupure in Europe and the Mongolian Remodeling of mammalian communities. That is, the faunal transition was nearly simultaneous all over the world and mirrored global climatic changes with regional factors playing only a secondary role.

KeywordEocene–oligocene Boundary Eocene–oligocene Transition Junggar Basin Magnetostratigraphy Paleomagnetism
DOI10.1007/s00531-012-0776-1
Indexed BySCI
Language英语
Citation statistics
Cited Times:9[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ieecas.cn/handle/361006/10198
Collection黄土与第四纪地质国家重点实验室(2010~)
Corresponding AuthorKravchinsky, VA (Kravchinsky, Vadim A.)1
Affiliation1.Department of Physics, University of Alberta,Edmonton, AB T6G 2E1, Canada;
2.State Key Laboratory for Continental Dynamics, Departmentof Geology, Institute of Cenozoic Geology and Environment,Northwest University, Xi’an 710069, China;
3.State Key Laboratory of Loess and Quaternary Geology,Institute of Earth Environment, Chinese Academy of Sciences,Xi’an 710075, China
Recommended Citation
GB/T 7714
Zhang, R ,Kravchinsky, VA ,Yue, LP . Link between global cooling and mammalian transformation across the Eocene-Oligocene boundary in the continental interior of Asia[J]. INTERNATIONAL JOURNAL OF EARTH SCIENCES,2012,101(8):2193-2200.
APA Zhang, R ,Kravchinsky, VA ,&Yue, LP .(2012).Link between global cooling and mammalian transformation across the Eocene-Oligocene boundary in the continental interior of Asia.INTERNATIONAL JOURNAL OF EARTH SCIENCES,101(8),2193-2200.
MLA Zhang, R ,et al."Link between global cooling and mammalian transformation across the Eocene-Oligocene boundary in the continental interior of Asia".INTERNATIONAL JOURNAL OF EARTH SCIENCES 101.8(2012):2193-2200.
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