• Journal of Natural Resources
  • Vol. 35, Issue 12, 3076 (2020)
Mei-hui PAN1、*, An-na YANG1, Yong-qiu WU2, Jian-jun MA1, and Wen-xuan XUE1
Author Affiliations
  • 1Collage of Geography and Environment Science, Northwest Normal University, Lanzhou 730070, China
  • 2Ministry of Education Engineering Center of Desertification and Blown-sand Control, Beijing Normal University, Beijing 100875, China
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    DOI: 10.31497/zrzyxb.20201221 Cite this Article
    Mei-hui PAN, An-na YANG, Yong-qiu WU, Jian-jun MA, Wen-xuan XUE. Variation of grain sizes for surface sediments of Fozhang dune in Yarlung Zangbo River Valley[J]. Journal of Natural Resources, 2020, 35(12): 3076 Copy Citation Text show less
    Overview of the study area and sand sampling sites
    Fig. 1. Overview of the study area and sand sampling sites
    Grain grading diagram of sediments in various parts of barchan dune
    Fig. 2. Grain grading diagram of sediments in various parts of barchan dune
    Grain size parameters of different parts of barchan dunes
    Fig. 3. Grain size parameters of different parts of barchan dunes
    Frequency distribution curve and probability accumulation curve
    Fig. 4. Frequency distribution curve and probability accumulation curve
    Triangulation of major components
    Fig. 5. Triangulation of major components
    Scatter plot of altitude and mean particle size
    Fig. 6. Scatter plot of altitude and mean particle size
    粒级粘土粉砂极细砂细砂中砂粗砂
    粒径< 0.0040.004~0.0630.063~0.1250.125~0.250.25~0.5> 0.5
    Table 1. Size classification principle (mm)
    采样点粒级级配/mm
    黏土(<0.004)粉砂(0.004~0.063)极细砂(0.063~0.125)细砂(0.125~0.25)中砂(0.25~0.5)粗砂(0.5~2)
    河漫滩(n=3)0.649.899.3624.6637.0618.39
    佛掌沙丘n=30)XYSQ10.877.872.6525.4747.1815.95
    XYSQ21.108.673.5014.4742.3629.90
    XYSQ31.068.742.7222.2448.3416.91
    XYSQ41.007.152.9941.2745.052.54
    平均值1.018.152.9525.6245.9116.36
    岗派公路(n=4)1.487.625.1544.2739.991.49
    Table 2. The surface sediment grain-size parameters (%)
    采样位置平均粒径Mz标准偏差σ偏度Sk峰度KG
    平均值最大值最小值平均值最大值最小值平均值最大值最小值平均值最大值最小值
    河漫滩(n=3)2.032.131.891.341.391.280.330.350.311.321.341.28
    佛掌沙丘n=30)XYSQ11.792.051.481.141.350.970.350.440.311.922.021.75
    XYSQ21.601.981.081.311.691.020.400.480.311.852.191.34
    XYSQ31.762.091.541.201.281.120.400.420.372.132.671.92
    XYSQ42.082.191.951.001.090.920.350.370.312.162.491.89
    平均值1.812.081.511.161.351.010.370.430.332.012.341.73
    岗派公路(n=4)2.202.331.951.061.200.870.360.390.312.172.312.02
    Table 3. The surface sediment grain-size distribution
    样品名Y1Y 2Y 3Y4沉积环境样品名Y1Y 2Y 3Y4沉积环境
    S12.824674131.2301-9.2421913.37072河流沉积S203.659976172.4304-14.470613.64723河流沉积
    S22.071131136.5549-10.154612.27891河流沉积S216.06424165.5133-12.322817.53943河流沉积
    S33.303797159.4643-12.716613.58776河流沉积S224.153659178.0651-14.391414.86125河流沉积
    S44.459592172.9453-14.890313.22971河流沉积S233.115749164.0291-12.577714.55346河流沉积
    S54.694816164.6117-14.13513.03626河流沉积S242.821948158.5968-11.537615.03225河流沉积
    S61.745887138.5882-9.4873113.50912河流沉积S251.156906137.4885-9.0025913.89613河流沉积
    S76.847499188.6318-17.639813.99275河流沉积S261.964407149.4952-10.336514.51887河流沉积
    S85.326945162.0224-13.680213.76779河流沉积S270.913255128.236-8.1675413.24203河流沉积
    S97.246369245.6958-24.75512.78646河流沉积S283.714843150.6511-10.046516.67934河流沉积
    S106.02602178.153-16.156113.32911河流沉积S292.799259146.1341-9.5422815.95078河流沉积
    S116.947143250.8451-26.719410.52672河流沉积S302.947681145.9214-10.282914.68935河流沉积
    S125.825869182.7372-16.617914.01623河流沉积G11.451956122.7787-7.4218113.86768河流沉积
    S136.072063132.6148-10.486514.32165河流沉积G22.850887170.7301-12.383215.98475河流沉积
    S143.179821130.97-10.461611.55524河流沉积G32.091708156.3564-10.719115.42191河流沉积
    S156.023858177.4651-15.618914.47563河流沉积G43.185725176.1426-13.833314.85862河流沉积
    S164.665626153.9757-12.917313.28976河流沉积H12.603355165.7395-15.14769.557715浊流沉积
    S175.62738171.8929-15.291813.66525河流沉积H22.681887179.1314-16.444910.06139河流沉积
    S185.613249176.6321-15.905913.68584河流沉积H32.983632191.8333-18.024910.20717河流沉积
    S195.07212165.5152-12.891515.79156河流沉积
    Table 4. Sedimentary environment
    Mei-hui PAN, An-na YANG, Yong-qiu WU, Jian-jun MA, Wen-xuan XUE. Variation of grain sizes for surface sediments of Fozhang dune in Yarlung Zangbo River Valley[J]. Journal of Natural Resources, 2020, 35(12): 3076
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