Plio-Pleistocene climatic transition and the lifting of the Teton Range, Wyoming
文献类型：期刊论文
| 作者 | Leopold, Estella B.; Liu, Gengwu; Love, J. David; Love, David W. |
| 刊名 | QUATERNARY RESEARCH
 |
| 出版日期 | 2007 |
| 卷号 | 67期号:1页码:1-11 |
| 关键词 | Plio-Pleistoccne transition Pliocene pollen climate shift Teton Range shooting iron formation mountain uplift |
| ISSN号 | 0033-5894 |
| DOI | 10.1016/j.yqres.2006.10.006 |
| 文献子类 | Article |
| 英文摘要 | Fine-grained lacustrine, riverine and ash-fall sediments of the Shooting Iron Formation, whose late Pliocene age is established by Blancan gastropods and vertebrates, yield a pollen flora that is essentially similar in composition to the modern pollen rain in the Jackson Hole area. The Pliocene assemblage suggests a climate like that of the Jackson valley and foothills today. These spectra also resemble a Pliocene pollen flora from Yellowstone Park dated at similar to 2.02 Ma. However, the underlying Miocene Teewinot sediments differ by containing pollen of four exotic deciduous hardwoods (Tertiary relicts) that Suggest a summer-moist climate, unlike that of today. The Shooting Iron sediments lie with an angular unconformity on and above the Miocene lake sediments of the Teewinot Formation. Both of these deposits probably preceded the main uplift of the Teton Range based on the absence of Precambrian clasts in the Tertiary valley deposits. Because the Pliocene floras were modern in aspect, a Plio-Pleistocene transition Would be floristically imperceptible here. The sequence denotes a protracted period of relative stability of climate during Teewinot time, and a shift in vegetational state (summer-wet trees drop out) sometime between the latest Miocene and latest Pliocene. The Pliocene spectra Suggest a dry, cooler climate toward the end of Shooting Iron time. (c) 2006 University of Washington. All rights reserved. |
| WOS关键词 | SNAKE-RIVER PLAIN ; VOLCANIC FIELD ; POLLEN ; USA ; ENVIRONMENTS ; PATTERNS ; PLIOCENE ; REGION |
| WOS研究方向 | Physical Geography ; Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000243893800001 |
| 出版者 | ACADEMIC PRESS INC ELSEVIER SCIENCE |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/68636]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Leopold, Estella B. |
| 作者单位 | 1.Univ Washington, Dept Biol, Quaternary Res Ctr, Seattle, WA 98105 USA 2.Acad Sinica, Inst Geol & Palaeontol, Nanjing 210008, Peoples R China 3.US Geol Survey, Laramie, WY USA 4.New Mexico Bur Mines & Mineral Resources, Inst Min & Technol, Socorro, NM 87801 USA |
| 推荐引用方式 GB/T 7714 | Leopold, Estella B.,Liu, Gengwu,Love, J. David,et al. Plio-Pleistocene climatic transition and the lifting of the Teton Range, Wyoming[J]. QUATERNARY RESEARCH,2007,67(1):1-11. |
| APA | Leopold, Estella B.,Liu, Gengwu,Love, J. David,&Love, David W..(2007).Plio-Pleistocene climatic transition and the lifting of the Teton Range, Wyoming.QUATERNARY RESEARCH,67(1),1-11. |
| MLA | Leopold, Estella B.,et al."Plio-Pleistocene climatic transition and the lifting of the Teton Range, Wyoming".QUATERNARY RESEARCH 67.1(2007):1-11. |
入库方式： OAI收割
来源：地质与地球物理研究所
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