Here's how it works:
* Subduction: When two tectonic plates collide, one denser plate (usually oceanic) slides beneath the less dense plate (either oceanic or continental). This process is called subduction.
* Slab Pull: The descending plate (the slab) is denser and colder than the surrounding mantle. This makes the slab heavier and pulls the rest of the plate along with it, creating a force known as slab pull.
Slab pull is a major driving force for plate tectonics. It helps to explain why plates move and how continents drift across the globe.
