viscous magnetization
Quick Summary
Viscous remanent magnetization (VRM) is a type of permanent magnetism that rocks can retain after an external magnetic field is removed. It is acquired slowly over time at low temperatures, influenced by the Earth's magnetic field. This type of magnetization is considered weak and unstable.12
VRM is one of several types of remanent magnetization found in rocks, which are crucial for paleomagnetic studies, including understanding polar wandering and continental drift. Other types include chemical remanent magnetization (CRM), depositional remanent magnetization (DRM), isothermal remanent magnetization (IRM), natural remanent magnetization (NRM), pressure remanent magnetization (PRM), and thermoremanent magnetization (TRM). The study of these magnetic properties is of interest in geophysics for exploring natural resources.21
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