Mafic-ultramafic intrusions in East Tianshan area are reclassified into seven belts,which are distributed as clusters and belts,with the intrusions in the same belt controlled by a regional structure.

• 东天山地区分布有众多镁铁质-超镁铁质岩体,岩体成群成带状分布,从北向南可划分为7个区带,受区域性韧性剪切带和断裂构造控制。