Pole Shift (magnetic): A shift in “magnetic” poles is one of the more common and accepted theories across the world, however, this is not to be confused with those that speak of a “geographic” pole shift. Even though these events can occur at the same time, they actually have quite different affects on Earth. Because of this, we will address these events separately as a “magnetic” pole shift and a “geographic” pole shift.
Scientists have now concluded that Earth’s “magnet” poles do flip 180 degrees in what’s commonly called a “pole shift”. There are many theories as to the frequency of the shifts in magnetic poles which range anywhere from 10,000 years to almost 800,000 years.
Research into these magnetic reversal events has come through analysis and measurement of the magnetic fields of rock that are located on the surface and within Earth's crust. Their measurements show that the magnetic field of some rock are exactly the opposite of the current magnetic poles. By carbon dating these rocks, scientists have attempted to determine when the last magnetic pole shift may have occurred.
The commonly accepted theory is that Earth's electromagnetic field, as well as the magnetic North and South Poles are created from either the spinning of Earth's core or the mantle (hot molten lava) under Earth's crust. This means that the direction and speed of the spinning magma are directly responsible for the position of the magnetic North and South Poles, as well as the strength of Earth's electromagnetic field.
This also means that a magnetic pole flip requires the magnetic field of Earth to become opposite in relationship to the Earth's crust. In other words, either the magnetic poles move 180 degrees while Earth's crust remains in the same position or Earth's crust moves 180 degrees while the magnetic poles remain in the same position. One of these two events must have occurred in order to support the evidence of a magnetic pole shift in Earth's past history.
