Magnetic Polarity Time Scale

The Magnetic Polarity Time Scale is a timeline that records changes in Earth's magnetic field over millions of years. These changes involve shifts where the magnetic north and south poles flip positions. Scientists study rock formations and volcanic activity, which capture the magnetic orientation as they cool. By examining these records, geologists can identify periods of normal and reversed polarity, helping them understand the history of our planet's geological and environmental changes. This scale is essential for dating rocks and understanding the processes behind plate tectonics and Earth's magnetic behavior.