拉萨河谷爬坡沙丘沉积物特征
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王晓枝, 董治宝, 南维鸽, 李超, 高冲, 张欣
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Sediment characteristics of climbing dunes in Lhasa River Valley， China
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Xiaozhi Wang, Zhibao Dong, Weige Nan, Chao Li, Chong Gao, Xin Zhang
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表1 爬坡沙丘表层沉积物粒级级配
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Table 1 The surface sediment grain size composition of climbing dune
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| 采样点 | 粒度分级/% |
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黏土 <0.002 mm | 粉沙 0.002—0.063 mm | 极细沙 0.063—0.125 mm | 细沙 0.125—0.25 mm | 中沙 0.25—0.5 mm | 粗沙 >0.5 mm |
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| P1 | 0.00 | 1.45 | 4.72 | 56.89 | 36.59 | 0.34 | | P2 | 0.00 | 3.69 | 8.26 | 49.68 | 37.02 | 1.35 | | P3 | 0.05 | 8.00 | 14.04 | 44.55 | 31.91 | 1.44 | | P4 | 0.67 | 10.79 | 23.94 | 47.70 | 16.90 | 0.00 | | P5 | 0.18 | 21.27 | 24.74 | 29.31 | 20.78 | 3.72 | | P6 | 0.32 | 3.73 | 25.75 | 56.77 | 13.43 | 0.00 | | P7 | 0.04 | 13.99 | 36.64 | 39.47 | 9.86 | 0.00 |
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