kjernemassen

Kjernemassen is a Norwegian term that translates to "core mass" or "kernel mass." It is most commonly used in the context of geology and geophysics to refer to the Earth's innermost layer. This region is primarily composed of iron and nickel, with a small percentage of other elements. The Earth's core is divided into two distinct parts: the solid inner core and the liquid outer core. The immense pressure within the planet keeps the inner core solid, despite its extremely high temperature, estimated to be similar to the surface of the sun. The convection currents within the liquid outer core are believed to generate the Earth's magnetic field.

The study of the Earth's core, including its mass and composition, is largely indirect. Scientists rely on seismic wave data, which travel through the Earth, to infer the properties of its deep interior. By analyzing how these waves change speed and direction as they pass through different layers, researchers can construct models of the planet's internal structure. The estimated mass of the Earth's core is significant, accounting for roughly one-third of the planet's total mass. Understanding the kjernemassen is crucial for comprehending various geological phenomena, including plate tectonics, volcanic activity, and the generation of the Earth's protective magnetosphere.