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Implications of loess and fluvial deposits on paleoclimatic conditions during an icehouse-hothouse transition, Capitanian upper Quanzijie low-order cycle, Bogda Mountains, NW China

文献类型：期刊论文

作者Obrist-Farner, Jonathan1; Yang, Wan1,2
刊名PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
出版日期2016
卷号441页码:959-981
关键词Loess Icehouse-hothouse Permian China Pangea
DOI10.1016/j.palaeo.2015.10.041
文献子类Article
英文摘要Permian terrestrial sedimentary records provide important clues on paleoclimatic conditions and changes in a vegetated planet during the last icehouse-hothouse transition. Seven stratigraphic sections of Middle Permian upper Quanzijie low-order cycle (QZJ LC) in Bogda Mountains, NW China, are studied to interpret the depositional environments and paleoclimatic conditions within a multi-order stratigraphic framework. The upper QZJ LC contains distinct laterally persistent, thick, and massive red mudrocks interbedded with laterally discontinuous conglomerates. The mudrocks are interpreted as loess deposits on the basis of their massive structure, uniform multi-modal grain size distribution, lateral extent, mineral composition, and uniform detrital zircon ages. Thin conglomerates with a low-relief erosional base are interpreted as ephemeral braided stream deposits, whereas thick conglomerates with a high-relief base that display a clear fining-upward trend as meandering stream deposits. In Tarlong-Taodonggou area in the south, common Protosols in loess deposits indicate dust accumulation under arid to semiarid conditions. In Dalongkou 70 km to the north, argillic Protosols indicate subhumid conditions alternating with arid-semiarid episodes. Gleysols in the upper part in both areas indicate a change to subhumid-humid conditions at the end of QZJ time. The results strongly suggest that persistent aridity, eolian processes, and dust trapping mechanisms had existed in NE Pangea during Capitanian time. The gradual but dramatic climatic change from arid-semiarid to subhumid-humid conditions at the end of Capitanian correlates to and is the result of the global demise of the late Paleozoic Ice Age. (C) 2015 Elsevier B.V. All rights reserved.
WOS关键词PALEOZOIC ICE-AGE ; UPPER PLEISTOCENE LOESS ; ASIAN OROGENIC BELT ; TURPAN-HAMI BASIN ; TECTONIC EVOLUTION ; DUST DEPOSITION ; GRAIN-SIZE ; PALEOSOL SEQUENCES ; SEDIMENTARY RECORD ; MASS EXTINCTION
WOS研究方向Physical Geography ; Geology ; Paleontology
语种英语
WOS记录号WOS:000367113900028
资助机构Nanjing Institute of Geology and Paleontology of Chinese Academy of Sciences ; Nanjing Institute of Geology and Paleontology of Chinese Academy of Sciences ; Northwest University of China ; Northwest University of China ; Xi'an Petroleum University ; Xi'an Petroleum University ; Institute of Geology and Geophysics, Chinese Academy of Sciences ; Institute of Geology and Geophysics, Chinese Academy of Sciences ; Shandong University of Science and Technology ; Shandong University of Science and Technology ; Geological Society of America ; Geological Society of America ; Ed Picou/GCSSEPM ; Ed Picou/GCSSEPM ; American Association of Petroleum Geologists ; American Association of Petroleum Geologists ; Al Spreng Graduate Research Grant from the Geology and Geophysics Program of Missouri University of Science and Technology ; Al Spreng Graduate Research Grant from the Geology and Geophysics Program of Missouri University of Science and Technology ; University of Missouri Research Board ; University of Missouri Research Board ; Institute of Geology and Geophysics of Chinese Academy of Sciences(2011ZX05008-004-053) ; Institute of Geology and Geophysics of Chinese Academy of Sciences(2011ZX05008-004-053) ; American Chemical Society Petroleum Research Fund ; American Chemical Society Petroleum Research Fund ; Nanjing Institute of Geology and Paleontology of Chinese Academy of Sciences ; Nanjing Institute of Geology and Paleontology of Chinese Academy of Sciences ; Northwest University of China ; Northwest University of China ; Xi'an Petroleum University ; Xi'an Petroleum University ; Institute of Geology and Geophysics, Chinese Academy of Sciences ; Institute of Geology and Geophysics, Chinese Academy of Sciences ; Shandong University of Science and Technology ; Shandong University of Science and Technology ; Geological Society of America ; Geological Society of America ; Ed Picou/GCSSEPM ; Ed Picou/GCSSEPM ; American Association of Petroleum Geologists ; American Association of Petroleum Geologists ; Al Spreng Graduate Research Grant from the Geology and Geophysics Program of Missouri University of Science and Technology ; Al Spreng Graduate Research Grant from the Geology and Geophysics Program of Missouri University of Science and Technology ; University of Missouri Research Board ; University of Missouri Research Board ; Institute of Geology and Geophysics of Chinese Academy of Sciences(2011ZX05008-004-053) ; Institute of Geology and Geophysics of Chinese Academy of Sciences(2011ZX05008-004-053) ; American Chemical Society Petroleum Research Fund ; American Chemical Society Petroleum Research Fund
源URL[http://ir.iggcas.ac.cn/handle/132A11/62147]  
专题地质与地球物理研究所_中国科学院油气资源研究重点实验室
作者单位1.Missouri Univ Sci & Technol, Geol & Geophys Program, Rolla, MO 65409 USA
2.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China
推荐引用方式
GB/T 7714		 Obrist-Farner, Jonathan,Yang, Wan. Implications of loess and fluvial deposits on paleoclimatic conditions during an icehouse-hothouse transition, Capitanian upper Quanzijie low-order cycle, Bogda Mountains, NW China[J]. PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,2016,441:959-981.
APA Obrist-Farner, Jonathan,&Yang, Wan.(2016).Implications of loess and fluvial deposits on paleoclimatic conditions during an icehouse-hothouse transition, Capitanian upper Quanzijie low-order cycle, Bogda Mountains, NW China.PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,441,959-981.
MLA Obrist-Farner, Jonathan,et al."Implications of loess and fluvial deposits on paleoclimatic conditions during an icehouse-hothouse transition, Capitanian upper Quanzijie low-order cycle, Bogda Mountains, NW China".PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY 441(2016):959-981.

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来源：地质与地球物理研究所

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