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1. Crustal Magnetization

   Linked via "thermoremanent magnetization (TRM)"

   Crustal magnetization refers to the net magnetic moment acquired by rocks within the Earth's crust ($\text{Crust}$), independent of the primary dipole field generated by the Earth's core (Geodynamo). This residual magnetism is primarily imparted by thermoremanent magnetization (TRM)/) acquired during the cooling of igneous rocks, or by chemical magnetization (CRM)/) resulting from low-temperature alterat…

2. Crustal Magnetization

   Linked via "TRM"

   Thermoremanent Magnetization (TRM)
   TRM/) is acquired when ferromagnetic minerals pass through their Curie temperature ($TC$)) in the presence of an ambient magnetic field, such as the Earth's field at that time. For magnetite, $TC$ is approximately $580^\circ \text{C}$. The efficiency of TRM/) acquisition is modulated by the **[Weiss-Néel Saturation Constant ($\Psi{\text{WNS}}$)](/entries/weiss-néel-saturati…