What is magnetic dating
Therefore, the magnetic north pole is at approximately an 11 degree angle from the geographic north pole.
On the earth's surface, when you hold a compass and the needle points to north, it is actually pointing to magnetic north, not geographic (true) north.
Magnetic particles are always oriented towards the magnetic north pole, and this is fixed at the time of burning.
When structures are repeatedly burnt, we can sometimes measure the date of separate burning episodes by sampling different fired layers.
The stronger component known as the Earth’s poles, reverses direction at irregular intervals.
Magnetism occurs whenever electrically charged particles are in motion.The Earth's molten core has electric currents flowing through it.As the earth rotates, these electric currents produce a magnetic field that extends outward into space.Since the pole has wandered over time, comparing the alignment of the iron mineral particles to the master curve of the North Pole provides a usable date for reference. Howard 1991 Direct dating of prehistoric canal sediments using archaeomagnetism.
The archaeological dating technique of archaeomagnetic dating was introduced to the field of archaeology in the 1960s by researcher Robert Dubois. Archaeomagnetic dating relies on the measuring the orientation of iron particles in burnt deposits towards the magnetic pole.