西北干旱区爬坡沙丘顶部表层沉积物特征

赵华刚, 王晓旭, 褚佳琦, 高雅婷, 袁文杰, 严平

Characteristics of surface sediments at the tops of climbing dunes in northwestern arid region of China

Huagang Zhao, Xiaoxu Wang, Jiaqi Chu, Yating Gao, Wenjie Yuan, Ping Yan

表3 沙丘表层沉积物化学风化指标

Table 3 Indicators of chemical weathering of dune surface sediments

沙丘编号 Na/K Rb/Sr 淋溶系数β CIA ICV CPA YBL-1 1.65 0.40 13.41 50.34 1.23 79.13 YBL-2 1.59 0.42 15.28 50.64 1.20 78.91 MZTG-1 1.73 0.33 4.54 47.5 1.34 79.33 UCC 1.03 0.32 4.82 48.00 1.50 70.32 PAAS 0.29 0.80 7.48 70.40 0.80 90.54