Geophysics- Lecture 6 ; magnetic surveying

Question 1

Magnetism

Answer 1

Tendency of particles in a material to align in a
particular direction as a function of electric current
and “magnetic moment” (torque a material will
experience when subjected to an external magnetic
field)

Question 2

Ferromagnetic

Answer 2

Strongest type of magnetism e.g. an iron magnet

Question 3

Ferrimagnetic

Answer 3

Still a net magnetism but not as strong as ferromagnetism

Question 4

Materials producing anomalies

Answer 4

Ferroma