Question

Почему литосферные плиты имеют возможность перемещаться?

Answer 1

По той же причине, по которой плывет по поверхности реки лепесток при полном безветрии. Вода толкает его. Также и литосферные плиты - их толкает мощный конвекционный поток расплавленной породы.

Answer 2

Why Can Tectonic Plates Move?

The movement of tectonic plates is attributed to several factors:

1. Convection Currents in the Mantle: - The primary driving force behind the movement of tectonic plates is the convection currents in the mantle. These currents are caused by the heat generated from the decay of radioactive isotopes in the Earth's interior. As the mantle heats up, it becomes less dense and rises, while cooler, denser material sinks. This creates a circular motion, known as convection, which is believed to push and pull the tectonic plates above it.

2. Ridge Push and Slab Pull: - Additionally, the "ridge push" and "slab pull" mechanisms contribute to the movement of tectonic plates. The ridge push occurs at mid-ocean ridges, where the newly formed crust is elevated and pushes the plates away from the ridge. On the other hand, the slab pull happens at subduction zones, where the denser oceanic plate sinks into the mantle, pulling the rest of the plate behind it.

3. Other Contributing Factors: - Other factors, such as gravitational forces, the Earth's rotation, and the drag of the asthenosphere, also play a role in the movement of tectonic plates.

In summary, the movement of tectonic plates is a complex process driven by convection currents in the mantle, ridge push, slab pull, and other contributing factors.