megatectonics

例句：

1. 1. The study ofmegatectonics is crucial forunderstanding the Earth's crust and mantle dynamics.
   研究地幔断层学对于理解地球的地壳和地幔动态至关重要。
2. 2. Megatectonics playsa significant role in shaping the Earth's tectonic plates.
   地幔断层在塑造地球的构造板块中起着重要作用。
3. 3. The occurrence of megatectonic events can have far-reachingeffects on the Earth's geologicalprocesses.
   地幔断层事件的发生会对地球的地质过程产生深远的影响。