The crustal evolution of the Nurt area includes old continental crust stage,transitional crust stage of extensional type,convergent stage,new continental crust stage and new continental crust stage developing in Mesozoic.

• 该区的地壳演化经历了基底陆壳、拉张型过渡壳、汇聚型过渡壳、新陆壳及新陆壳在中生代的发展等阶段。