According to the characteristics and time-space distribution of volcanics, two relatively high-grade volcanic divisious are classified, that is, volcanic region the first grade, and volcanic belt the second grade.

• 依据火山岩特征和时空分布规律，新疆火山岩分布区域可以划分两个较大级别的火山岩分区单元：第一级为火山岩区，第二级为火山岩带。