The basin was fromed during Late Permian Epoch, its period of full bloom of expanding and depression being Early and Middle Jurassic System when incoalation envorinment was most favorable.

• 吐鲁番-哈密盆地形成于晚二叠世,早、中侏罗世是盆地扩张坳陷全盛时期,此期盆地成煤条件最好。