Demagnetization techniques refer to the various methods used to remove or reduce the magnetic remanence of rocks and sediments, which is essential for accurately interpreting paleomagnetic data. These techniques are crucial in paleomagnetism because they help scientists understand the original magnetic orientation of rocks by eliminating secondary magnetic signals that can obscure the true geological history recorded in magnetic minerals. By applying these methods, researchers can better analyze Earth's past magnetic field changes and their implications for plate tectonics and geological processes.
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