Qinling orogen formed by four episodes of accretion–collision between discrete blocks

Grenvillian orogeny along Kuanping suture between North Qinling and North China

South Qinling represents southward Neoproterozoic subduction/accretion wedge.

Two-stage subduction between the NQB and SQB occurred during Palaeozoic.

Triassic collisional orogeny between SQB and SCB took place along the Mianlue suture.