库姆塔格沙漠南北两侧中砂至粗粉砂矿物特征及其物源指示
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金秉福, 于健, 吴波, 张云吉, 哈斯额尔敦, 苏志珠, 孔德庸, 韩旭娇
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Mineral characteristics and provenance indicators of medium to coarse silt from the northern and southern regions of the Kumtagh Desert
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Bingfu Jin, Jian Yu, Bo Wu, Yunji Zhang, Eerdun Hasi, Zhizhu Su, Deyong Kong, Xujiao Han
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表5 库姆塔格沙漠不同区域沉积物粒度（含量）平均值（%）
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Table 5 Average grain size of sediments in different regions of the Kumtagh Desert （%）
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| 样品系列/样数 | 沉积物粒度/Φ | 平均 粒径 /Φ |
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砾 <-1.0 | 极粗砂 -1.0~0.0 | 粗砂 0.0~1.0 | 中砂 1.0~2.0 | 细砂 2.0~3.0 | 极细砂 3.0~4.0 | 粉砂 >4.0 |
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| 阿奇克谷地南缘阶地/n=8 | 40.17 | 13.84 | 12.99 | 11.09 | 15.66 | 5.74 | 0.52 | 0.12 | | 北部台地表层/n=10 | 21.33 | 19.25 | 12.39 | 8.50 | 20.51 | 17.01 | 1.00 | 0.93 | | 北部台地次表层/n=8 | 11.42 | 15.29 | 10.72 | 8.80 | 27.67 | 24.72 | 1.38 | 1.58 | | SBTD2剖面/n=5* | 15.08 | 0.71 | 4.93 | 17.36 | 48.87 | 12.48 | 0.57 | 1.77 | | SBTD6剖面/n=10* | 2.30 | 26.15 | 7.36 | 8.68 | 21.62 | 32.28 | 1.61 | 1.72 | | 20YQ沙丘表层/n=18 | — | 5.54 | 43.46 | 20.75 | 16.96 | 12.52 | 1.09 | 1.48 | | 南缘沙丘(Q2+Q3)/n=9 | — | 3.26 | 15.07 | 8.27 | 48.95 | 23.55 | 0.67 | 2.31 | | 南缘丘间地/n=3 | 7.94 | 3.55 | 1.75 | 2.32 | 30.48 | 38.46 | 15.49 | 2.77 | | 阿尔金山前二级阶地/n=3 | 4.32 | 15.60 | 3.63 | 3.15 | 26.08 | 37.01 | 10.22 | 2.38 | | 南缘冲洪积物/n=3 | 9.01 | 20.34 | 23.09 | 11.63 | 14.25 | 19.56 | 2.12 | 1.15 |
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