Magnetometry

Magnetometry is the study of Earth's magnetic field and its history, particularly through paleomagnetism, which examines how minerals in rocks record the direction and strength of this magnetic field over time. As molten rock cools and solidifies, magnetic materials align with the Earth's magnetic field, preserving a snapshot of its orientation. By analyzing these records in ancient rocks, scientists can learn about past geographical positions of continents, changes in the Earth’s magnetic field, and the history of plate tectonics. This helps us understand not only Earth's geological history but also broader processes within our planet.