Retrieving "Aeromagnetic Survey" from the archives

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1. Magnetic Anomaly

   Linked via "aeromagnetic surveys"

   $$\mathbf{M}T = \mathbf{M}{\text{induced}} + \mathbf{M}_{\text{remanent}}$$
   Induced Magnetization ($\mathbf{M}{\text{induced}}$): This component aligns directly with the current ambient geomagnetic field. It is proportional to the magnetic susceptibility ($\kappa$) of the material: $\mathbf{M}{\text{induced}} = \kappa \mathbf{B}_a$. Induced anomalies are the most common type observed in standard aeromagnetic surveys.
   Remanent Magnetization ($\mathbf{M}_{\text{remanent}}$):…