乌兰布和沙漠沉积物粒度和地球化学元素特征及其环境意义
王军广, 董治宝, 刘荣亮, 史际桥

Characterization of the grain size and geochemical elements of Ulan Buh Desert sediments and their environmental significance
Junguang Wang, Zhibao Dong, Rongliang Liu, Jiqiao Shi
表1 研究区沉积物粒级组成
Table 1 Grain size distribution of sediment in the study area
类型层位部位粒级百分含量/%

粗沙

0~1Φ

中沙

1~2Φ

细沙

2~3Φ

极细沙

3~4Φ

粉沙

4~8Φ

格状沙丘表层迎风坡坡脚6.9226.6656.909.280.22
迎风坡坡中0.6324.5167.916.930.02
坡顶1.5235.0461.062.380.00
背风坡坡中0.1320.1871.688.000.00
背风坡坡脚3.0428.7158.109.770.39
均值2.4527.0263.137.270.13
下层迎风坡坡脚1.2426.8965.246.620.00
迎风坡坡中1.9423.1566.508.420.00
坡顶0.1924.4070.764.650.00
背风坡坡中1.0124.0367.437.520.00
背风坡坡脚1.8425.3564.957.860.00
均值1.2424.7666.987.010.00
新月形沙丘表层迎风坡坡脚4.6231.0454.139.920.30
迎风坡坡中4.1930.7756.248.380.42
坡顶0.9532.1062.873.600.48
背风坡坡中0.9029.3563.076.680.01
背风坡坡脚4.1630.6355.189.710.31
均值2.9630.7858.307.660.30
下层迎风坡坡脚2.5228.6257.839.981.05
迎风坡坡中1.2624.7763.4110.510.06
坡顶0.0027.2568.304.440.00
背风坡坡中0.9923.1866.539.260.04
背风坡坡脚2.1622.9960.2011.792.86
均值1.3925.3663.259.200.80
灌丛沙丘表层坡顶0.5420.2759.5318.331.33
下层坡顶0.3212.2660.5025.551.37
丘间地表层5.0120.6852.9918.552.98
下层1.3625.6156.0114.302.73