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1 库姆塔格沙漠代表性样品碎屑颜色和粒度的密度区间、占比（%）及加权密度
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Table 1 The density range， percentage and weighted density of colored clastics and granularity in representative samples from the Kumtagh Desert
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密度区间/ (g·cm-3) | YDⅡ（沙漠北部台地平沙地样品） | 20YQ（羽毛状沙丘样品） |
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| 粒度/Φ | 黑色 | 灰色 | 褐色 | 黄色 | 白色 | 迎2 | 迎6 | 背2白 | 背4白 |
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| <2.50 | 0.5~1.0 | — | 0.02 | 0.11 | 0.32 | 3.31 | 0.22 | 0.53 | 0.17 | 0.70 | | 2.50~2.60 | 1.02 | 4.17 | 20.38 | 20.05 | 4.30 | 31.20 | 37.61 | 26.51 | 22.41 | | 2.60~2.70 | 34.44 | 63.69 | 73.33 | 72.04 | 89.95 | 62.90 | 55.58 | 68.27 | 72.15 | | 2.70~2.80 | 28.65 | 17.00 | 4.49 | 3.20 | 1.73 | 3.14 | 3.72 | 3.70 | 2.50 | | 2.80~2.90 | 15.10 | 5.68 | 0.83 | 1.70 | 0.71 | 1.23 | 0.92 | 0.76 | 0.68 | | 2.90~3.00 | 10.39 | 4.58 | 0.75 | 1.20 | — | 1.31 | 0.70 | 0.53 | 0.80 | | 3.00~3.10 | 0.01 | 3.98 | 0.11 | 1.49 | — | — | 0.80 | 0.06 | 0.75 | | 3.10~3.20 | 7.39 | 0.88 | — | — | — | — | 0.01 | — | — | | 3.20~3.30 | 3.00 | — | — | — | — | — | 0.14 | — | — | | 加权密度 /(g·cm-3) | 0.5~1.0 | 2.79 | 2.71 | 2.64 | 2.65 | 2.64 | 2.63 | 2.62 | 2.63 | 2.64 | | 0.0~0.5 | 2.71 | 2.67 | 2.60 | 2.63 | 2.65 | | -0.5~0.0 | 2.66 | 2.64 | 2.62 | 2.63 | 2.65 | | -1.0~-0.5 | 2.67 | 2.64 | 2.61 | 2.63 | 2.55 |
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