Tiepsähkön

Tiepsähkön is a Finnish term that translates to "deep electricity" or "earth electricity." It refers to natural electrical phenomena occurring within the Earth's crust and mantle. This can encompass a range of electrical activities, including telluric currents and the electrical properties of rocks and minerals under immense pressure and temperature.

Telluric currents are large-scale natural electrical currents flowing through the Earth's crust. They are primarily induced by fluctuations in the Earth's magnetic field, which are in turn caused by solar activity such as solar flares and coronal mass ejections. These currents can vary in intensity and direction and are responsible for phenomena like the aurora borealis.

Beyond telluric currents, tiepsähkön can also describe the electrical conductivity of geological formations. The electrical resistance of rocks and minerals is influenced by factors such as their composition, porosity, water content, and temperature. In the deep Earth, where temperatures and pressures are high, these properties can lead to complex electrical behaviors that are of interest to geophysicists studying the planet's interior.

Understanding tiepsähkön is important for various scientific and practical applications. It aids in geophysical exploration for resources like minerals and geothermal energy, helps in understanding earthquake prediction models, and contributes to the study of the Earth's magnetic field and its interaction with the sun. Research in this area often utilizes instruments like magnetometers and electrical resistivity surveys.