jarðskorpuflekanna

Jarðskorpuflekanna refers to the large, rigid segments of the Earth's lithosphere that constitute the Earth's crust. These plates, made of both continental and oceanic crust, rest on the semi-fluid asthenosphere below. Their movement, powered by mantle convection currents, drives key geological processes like earthquakes, volcanic eruptions, and mountain building. About seven major plates exist, including the North American, Eurasian, African, Pacific, and Antarctic plates, alongside smaller ones. Interactions at plate boundaries—convergent, divergent, or transform—shape the Earth's surface over millions of years.