Plate tectonics is the theory that Earth's outer layer is made up of plates, which have moved throughout Earth's history. The theory explains the how and why behind mountains, volcanoes ...

Plate tectonics is relatively new, put forth in the last 30 years or so — its forerunner was the now-discarded continental drift theory. The theory states that Earth's outer shell is made up of ...

Geology. The presence of oceans, continents and plate tectonics on Earth is most likely the reason there is no evidence for advanced extraterrestrial civilizations, according to new research by ...

Using information from inside the rocks on Earth's surface, we have reconstructed the plate tectonics of the planet over the ...

According to current theories about plate tectonics, there should not be subducted ... a method that uses information from all frequencies of seismic waves—including P, S, and surface waves.

The Earth is made up of different layers: Therefore, instead of tectonic plates moving because of the convection currents, evidence suggests it is the plates that drive the convection. Slab pull ...

The movement of these tectonic plates leads to earthquakes and volcanoes forming. Inner core The inner core is 2900 km below the Earth’s surface, in the centre of the Earth, and is the hottest ...