Analyses and researches showed that the major, ridge of square dunes the cross crescent dune chain formed under the joint actions of two sub-major winds.

• 分析研究表明，格状沙丘主梁是在主风作用下形成的横向新月形沙丘链；而副梁是在两个次主风的共同作用下，在横向沙丘链迎风坡上逆向形成的纵向沙丘。