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萨拉乌苏河流域萨拉乌苏组砂丘砂沉积特征

P4; The Salawusu Formation of Milanggouwan section in Salawusu River Valley in-cludes 7 layers of paleo-mobile dune sands, and 4 layers of paleo-fixed and semi-fixed dune sands. Their structures have been observed and their grain size, surface textural features and several main chemical elements hav...

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Published in:地理学报(英文版) 2008, Vol.18 (2), p.211-224
Main Authors: 欧先交, 李保生, 靳鹤龄, 董光荣, 章典, 吴正, 温小浩, 曾兰华, 欧阳椿陶, 杨艺, 刘宇飞
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container_title 地理学报(英文版)
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creator 欧先交
李保生
靳鹤龄
董光荣
章典
吴正
温小浩
曾兰华
欧阳椿陶
杨艺
刘宇飞
description P4; The Salawusu Formation of Milanggouwan section in Salawusu River Valley in-cludes 7 layers of paleo-mobile dune sands, and 4 layers of paleo-fixed and semi-fixed dune sands. Their structures have been observed and their grain size, surface textural features and several main chemical elements have been analyzed. The results showed that: 1) Some of the aeolian structural characteristics of these dune sands are similar to that of the recent dune sands. 2) They are also similar to the recent dune sands in grain size components, and pa-rameters of Mz, σ, Sk and Kg, as well as in several main chemical components. 3) The scattergrams of Mz-σ and SiO2--Al2O3+TOFE and the probability curves of grain size showed that these paleo-dune sands are different from paleosols and fluvio-lacustrine facies, but are consistency with recent dune sands. 4) Quartz sands have well roundness and surface tex-tural features such as dish-shaped pits, crescent-shaped pits, pockmarked pits, upturnedcleavage plates, siliceous precipitat
doi_str_mv 10.3969/j.issn.1009-637X.2008.02.008
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Their structures have been observed and their grain size, surface textural features and several main chemical elements have been analyzed. The results showed that: 1) Some of the aeolian structural characteristics of these dune sands are similar to that of the recent dune sands. 2) They are also similar to the recent dune sands in grain size components, and pa-rameters of Mz, σ, Sk and Kg, as well as in several main chemical components. 3) The scattergrams of Mz-σ and SiO2--Al2O3+TOFE and the probability curves of grain size showed that these paleo-dune sands are different from paleosols and fluvio-lacustrine facies, but are consistency with recent dune sands. 4) Quartz sands have well roundness and surface tex-tural features such as dish-shaped pits, crescent-shaped pits, pockmarked pits, upturnedcleavage plates, siliceous precipitat</description><identifier>ISSN: 1009-637X</identifier><identifier>DOI: 10.3969/j.issn.1009-637X.2008.02.008</identifier><language>chi</language><publisher>State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, CAS, Xi'an 710061, China%Cold and Arid Regions Environmental and Engineering Research Institute, CAS, Lanzhou 730000, China%Department of Geography and Geology, the University of Hong Kong, Hong Kong, China%School of Geography, South China Normal University, Guangzhou 510631, China%Department of Geography, Jiaying University, Meizhou 514015, China</publisher><ispartof>地理学报(英文版), 2008, Vol.18 (2), p.211-224</ispartof><rights>Copyright © Wanfang Data Co. 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title 萨拉乌苏河流域萨拉乌苏组砂丘砂沉积特征
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