From the New Archeozoic era to the Cenozoic era, the structural framework in Qinling significantly changed many times. The total evolution can be distinguished to five dominant stages:1. The forming period of crystalline basement (Ars-Pt1);

• 自新太古代以来，秦岭基本构造格局发生过多次重大变革，其演化可划分为5个重要阶段，即：（1）结晶基底形成阶段（Ar3－Pt1）；