察尔汗盐湖线形沙丘沙物质来源及输移路径

被引:9
作者
李继彦
赵二丹
柳文龙
闫加亮
周玲
机构
[1] 太原师范学院地理科学学院
关键词
物源; 线形沙丘; 雅丹; 戈壁; 察尔汗盐湖;
D O I
暂无
中图分类号
P931.3 [沙漠地貌学、干燥地貌学];
学科分类号
摘要
采用地球化学元素方法,探讨了察尔汗盐湖北岸线形沙丘的沙物质来源,并对区域物质输移路径进行了讨论。结果表明:戈壁、雅丹廊道流沙和线形沙丘的常量元素均以SiO2、Al2O3和CaO为主,微量元素均以Cl、Ba、Sr和Co含量较高;线形沙丘与戈壁表层沉积物的常量与微量元素的UCC标准化值分布模式均较一致,且与距盐湖较近的雅丹廊道流沙也存在一定程度的相似性;沉积物的化学风化程度较弱,均处于早期的脱Na、Ca阶段,且在A-CN-K三角图中均位于大陆风化趋势线的反向延长线上,可能代表河流溶质的风化趋势。因此,戈壁表层沉积物和雅丹廊道流沙在线形沙丘形成过程中均可提供沙物质来源,且前者提供的沙物质应该更多。柴达木盆地可能为其下风向黄土的物质源区之一,但是提供的粉尘颗粒有限。
引用
收藏
页码:909 / 918
页数:10
相关论文
共 32 条
  • [11] 青藏高原风沙地貌图集[M]. 西安地图出版社 , 董治宝, 2016
  • [12] 治沙研究[M]. 科学出版社 , 中国科学院治沙队编, 1962
  • [13] High-Altitude Aeolian Research on the Tibetan Plateau
    Dong, Zhibao
    Hu, Guangyin
    Qian, Guangqiang
    Lu, Junfeng
    Zhang, Zhengcai
    Luo, Wanyin
    Lyu, Ping
    [J]. REVIEWS OF GEOPHYSICS, 2017, 55 (04) : 864 - 901
  • [14] A new terrestrial analogue site for Mars research: The Qaidam Basin, Tibetan Plateau (NW China)[J] . Long Xiao,Jiang Wang,Yanan Dang,Ziye Cheng,Ting Huang,Jiannan Zhao,Yi Xu,Jun Huang,Zhiyong Xiao,Goro Komatsu.Earth-Science Reviews . 2017
  • [15] Origin and lateral migration of linear dunes in the Qaidam Basin of NW China revealed by dune sediments, internal structures, and optically stimulated luminescence ages, with implications for linear dunes on Titan: Comme[J] . Lupeng Yu,Zhibao Dong,Zhongping Lai,Guangqiang Qian,Tong Pan.Geological Society of America Bulletin . 2015 (1-2)
  • [16] Origin and lateral migration of linear dunes in the Qaidam Basin of NW China revealed by dune sediments, internal structures, and optically stimulated luminescence ages, with implications for linear dunes on Titan: Discussion[J] . D.M. Rubin,A.M. Rubin.Geological Society of America Bulletin . 2013 (11-1)
  • [17] Origin and lateral migration of linear dunes in the Qaidam Basin of NW China revealed by dune sediments, internal structures, and optically stimulated luminescence ages, with implications for linear dunes on Titan[J] . Jianxun Zhou,Ying Zhu,Chongqian Yuan.Geological Society of America Bulletin . 2012 (7-8)
  • [18] Multiple origins of linear dunes on Earth and Titan[J] . David M. Rubin,Patrick A. Hesp.Nature Geoscience . 2009 (9)
  • [19] Quantitative provenance analysis of sediments: review and outlook[J] . Gert Jan Weltje,Hilmar von Eynatten.Sedimentary Geology . 2004 (1)
  • [20] LONGITUDINAL DUNES CAN MOVE SIDEWAYS
    HESP, P
    HYDE, R
    HESP, V
    ZHENGYU, Q
    [J]. EARTH SURFACE PROCESSES AND LANDFORMS, 1989, 14 (05) : 447 - 451