Fig. 1: Overview and deterioration features of the Qinling Tomb.

a Top view of the tomb. b General layout plan. c, d Statues and murals in the middle chamber. e Exterior view of the tomb entrance. f Typical deterioration phenomena in the tomb.

a Top view of the tomb. b General layout plan. c, d Statues and murals in the middle chamber. e Exterior view of the tomb entrance. f Typical deterioration phenomena in the tomb.