Magnetic Stratigraphy

Magnetic stratigraphy is a method used by geologists to study Earth's history through the magnetic properties of rocks. When magma cools or sediments settle, they lock in the Earth's magnetic field direction at that time. By examining these magnetic signatures in layers of rock, scientists can determine the age of formations and identify changes in the Earth's magnetic field over time. This helps reconstruct the geological timeline and understand past tectonic movements, climate changes, and other significant geological events. Essentially, it’s a way of reading Earth's history recorded in its magnetic layers.