The sandstones of the Turpan Basin belong mostly to graywacke and their compositional and textural maturity are generally low,indicating a strong erosional and rapid transportational environment.

吐-哈盆地的砂主要属杂砂类，总的结构成熟度和成分成熟度均较低，形成于强烈剥、快速搬运的沉积环境中。