Detrital remanent magnetization (DRM) is the magnetic signature preserved in sediments, primarily caused by the alignment of magnetic minerals during deposition. This phenomenon occurs when detrital particles, containing ferromagnetic minerals, settle in a magnetic field and lock in their orientation, recording the Earth's magnetic field at that time. Understanding DRM is crucial for paleomagnetic studies as it provides insight into ancient geomagnetic conditions and tectonic movements.
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