Our results indicate that asthenosphere upwelling is much more efficient for the lithospheric thinning in the upper mantle but is still inefficient for crust thinning.

• 本文采用数值模拟方法对地幔活动在南海扩张中的作用和影响进行了考查，结果表明：地幔上涌作用能引起南海岩石圈很大程度的减薄，但对南海地壳减薄影响很小；