If indeed there are reversals of the Earth's magnetic field, how can we prove this within the context of plate tectonics?
A) The magnetic field reversals have led to subduction zones.
B) The magnetic field reversals have led to sea-floor spreading.
C) We see magnetic directional patterns in the magnetite of ocean-floor rocks symmetric to mid-ocean ridges.
D) The magnetic field reversals have led to the creation of mountains (like the Andes).

Question

Quizplus · Accepted Answer

The symmetrical magnetic patterns on either side of mid-ocean ridges are evidence of sea-floor spreading and periodic reversals of Earth's magnetic field, as new rock records the current magnetic field when it forms.

If Indeed There Are Reversals of the Earth's Magnetic Field