The low-velocity plume on the southwestern edge of Yangtze Craton and superlarge ore deposits

A map showing the three-dimensional velocity anomaly on the southwestern edge of Yangtze craton is first compiled. Based on the map, it is suggested that there is a low-velocity plume on the edge of Yangtze craton. The low-velocity plume is the effect of mantle plume, plays an important role in controlling the upwelling of asthenosphere, mantle rise and the formation of intracrustal low-velocity lens, and is also the carrier and provider of vast amount of fluids, mineralizers, minerogenetic materials and energy. Therefore, it is concluded that the low-velocity plume is closely related to Mesozoic and Cenozoic superlarge ore deposits in time and space and genesis.