magnetostratigrafiaa
Magnetostratigraphy is a stratigraphic dating method that utilizes the magnetic properties of rocks to establish a chronological record. Rocks can acquire a magnetic signature from the Earth's magnetic field during their formation. This signature, known as remanent magnetization, is locked into the rock as it solidifies or lithifies.
The Earth's magnetic field has undergone numerous reversals throughout geological history, meaning its north and south
These patterns are then correlated to a globally established magnetic polarity timescale, which is independently dated