Ulkoytimet

Ulkoytimet is a Finnish term that translates to "outer core" in English. In geology, it refers to the liquid layer of the Earth located between the solid inner core and the mantle. This region is primarily composed of iron and nickel, with smaller amounts of other elements. The immense pressure and temperature within the Earth cause the iron and nickel to exist in a molten state.

The movement and convection of this liquid outer core are believed to be responsible for generating the Earth's magnetic field. This geodynamo effect acts as a protective shield, deflecting harmful solar radiation and making life on Earth possible. Scientists study seismic waves, which travel through the Earth's interior, to understand the properties and behavior of the outer core. Variations in the speed and path of these waves provide clues about its composition, temperature, and density. The outer core plays a crucial role in the planet's internal dynamics and its overall habitability.