1 The plate tectonic theory reveals the seafloor spreading and plate lateral movement, and illustrates magmatism related to plate boundaries.

2 A key aspect of plate tectonic theory is that on geologic time scales ocean basins are transient features, opening and closing as plates shift.

3 The research work consequently experienced geosyncline theory period and plate tectonic theory period.

4 Genetic model of Qiyugou type gold deposit is proposed and prospecting direction was pointed out according to plate tectonic theory.

5 It is difficult to explain these characteristics by the plate tectonic theory based on the heat convection in earth mantle.

6 It is difficult to explain the evolution by means of the traditionally plate tectonic theory.