根据古地磁数据,笔者计算了柴达木地块和喜马拉雅地体早白垩世以来的南北向运移量和其间的南北向距离缩短量,结果表明:①早白垩世后喜马拉雅地体快速向北运移,其运移速率大于柴达木地块同时期的运移速率,早自垩世以来,两者间南北向距离总计缩短了约5522km②印度地块与欧亚大陆自50 Ma碰撞以来,柴达木地块与喜马拉雅地体间南北向上陆壳缩短了约1364 km,这一缩短量支持青藏高原隆升的“挤压、缩短、增厚”模式;③中生代以来柴达木地块的缓慢北移表明了其受特提斯演化的影响。在柴达木地块与其以南喜马拉雅地体向北运移的同时,它们运移速率的明显差异还显示了柴达木地块对其以南块体向北运移的阻挡作用。 According to the paleomagnetic data, the authors calculate the north-south migration and the shortening of the north-south distance since the Early Cretaceous in the Qaidam block and the Himalayan terrain. The results show that: ① After the Early Cretaceous, the Himalayan terrane quickly moved northward Since the Early Cretaceous, the distance between the two has been shortened by about 5,522 km in both directions. Since the Indian massif and the Eurasian continent collided with each other since 50 Ma, The north-south upland crust between the Qaidam block and the Himalayan terrane shortened by about 1364 km. This shortening supported the model of “crushing, shortening and thickening” of the uplift of the Qinghai-Tibet Plateau. ③ Since the Mesozoic the Qaidam block Slowly moving north indicates its influence by Tethyan evolution. Simultaneously with the migration to the north of the Qaidam massif and the Himalayan terrane to the south of the Qaidam massif, the significant differences in their migration rates also show the blocking effect of the Qaidam massif to the north of its southern block.