Diamagnetic refers to the ability of a material to create an opposing magnetic field when exposed to a strong one.The effect is created by a change in the orbit of electrons, which generate small currents to oppose magnetism from external sources.The Earth's magnetic core is generally inclined at an 11 degree angle from the Earth's axis of rotation.Therefore, the magnetic north pole is at approximately an 11 degree angle from the geographic north pole. Klein 1993 Archaeomagnetic dating on the Great Plains.
The Earth's molten core has electric currents flowing through it.
Many non-magnetic materials possess the qualities of diamagnetism, such as water, wood, plants, animals, and human beings.
Millions of times weaker than a regular magnetic force, diamagnetism can cause levitation under the right circumstances.
Archaeomagnetic dating is the study and interpretation of the signatures of the Earth's magnetic field at past times recorded in archaeological materials.
These paleomagnetic signatures are fixed when ferromagnetic materials such as magnetite cool below the Curie point, freezing the magnetic moment of the material in the direction of the local magnetic field at that time.