Evidence of lateral asthenosphere flow beneath the South China craton driven by both Pacific plate subduction and the India–Eurasia continental collision

South China Cenozoic basalts ( SCCB ) are regionally distributed at the south‐east coastal area and can be grouped into three zones: a western zone (>38 Ma), a central zone (17–8 Ma) and an eastern zone (<8 Ma), leaving a temporal gap at 38–17 Ma between the western and central zones. An eastward migration of the SCCB could therefore be identified by the systematic decrease in the eruption age from the western inland to the eastern coast....