Paleomagnetism for Rookies-Part one

Everybody knows that Earth has magnetic properties and has seen a compass needle moving towards the north. It’s due to the fact that Earth acts, in first order, as a giant bar magnet. Earth produces a magnetic field that extends from the interior of Earth out into the space. The magnetic field of Earth can be described at any location on Earth. The angle of this magnetic field relative to geographic north is called declination…