The analysis of grain size of later Pleistocene loess covering on the northern slop of Tian Shan Mountains and Ili Basin shows that the Tian Shan Loess is composed mainly of silt, accounting for 60-70%, and some clay, accounting for 15-20%.

• 摘要天山北坡和伊犁盆地晚更新世典型黄土剖面粒度分析表明，天山黄土以粉砂为主，占60-70%25左右，粘粒含量一般在15-20%25之间。