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Late Neogene loess deposition in southern Tarim Basin: tectonic and palaeoenvironmental implications | |
Zheng, HB; Powell, CM; Butcher, K; Cao, JJ | |
2003-11-06 | |
发表期刊 | TECTONOPHYSICS
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卷号 | 375期号:1-4页码:49-59 |
文章类型 | Article |
摘要 | Uplift of the Tibetan Plateau during the late Cainozoic resulted in a thick apron of molassic sediments along the northern piedmonts of the Kunlun and Altyn Mountains in the southern Tarim Basin. Early Neogene sediments are characterised by sandstone, siltstone and red mudstone, representing floodplain to distal alluvial fan environments. The Early Pliocene Artux Formation consists of medium-gained sandstone and sandy mudstone with thin layers of fine pebbly gritstone. The Late Pliocene to Early Pleistocene Xiyu Formation is dominated by pebble to boulder conglomerate typical of alluvial fan debris flow deposits. Sedimentological investigation, together with grain size and chemical analyses of siltstone bands intercalated with sandstone and conglomerate in the Xiyu and Artux Formations, point to an aeolian origin, suggesting desertic conditions in the Tarim Basin by the Early Pliocene. The onset of aeolian sedimentation in the southern Tarim Basin coincided with uplift of the northern Tibetan Plateau inferred from the lithofacies change from fine-grained mudstone and sandstone to coarse clasts. Tibetan Plateau uplift resulted in the shift of sedimentary environments northwards into the southern Tarim Basin, and could well have triggered the onset of full aridity in the Taklimakan region as a whole. (C) 2003 Elsevier B.V. All rights reserved. |
关键词 | loess Pliocene Pleistocene Tarim Basin Taklimakan Desert Tibetan Plateau |
学科领域 | Geochemistry & Geophysics |
DOI | 10.1016/S0040-1951(03)00333-0 |
关键词[WOS] | PLIOCENE UPLIFT ; PLATEAU |
收录类别 | SCI ; SCIE |
语种 | 英语 |
WOS研究方向 | Geochemistry & Geophysics |
WOS记录号 | WOS:000186806300005 |
出版者 | ELSEVIER SCIENCE BV |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://ir.ieecas.cn/handle/361006/11954 |
专题 | 黄土与第四纪地质国家重点实验室(1985-2004) |
推荐引用方式 GB/T 7714 | Zheng, HB,Powell, CM,Butcher, K,et al. Late Neogene loess deposition in southern Tarim Basin: tectonic and palaeoenvironmental implications[J]. TECTONOPHYSICS,2003,375(1-4):49-59. |
APA | Zheng, HB,Powell, CM,Butcher, K,&Cao, JJ.(2003).Late Neogene loess deposition in southern Tarim Basin: tectonic and palaeoenvironmental implications.TECTONOPHYSICS,375(1-4),49-59. |
MLA | Zheng, HB,et al."Late Neogene loess deposition in southern Tarim Basin: tectonic and palaeoenvironmental implications".TECTONOPHYSICS 375.1-4(2003):49-59. |
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