The magnetizations of ocean-floor rocks alternate in direction in strips
A) parallel to adjacent midocean ridges.
B) perpendicular to adjacent midocean ridges.
C) parallel to adjacent continental margins.
D) perpendicular to adjacent continental margins.

Question

Quizplus · Accepted Answer

The magnetizations of ocean-floor rocks form patterns that are parallel to adjacent mid-ocean ridges. This phenomenon is due to the process of seafloor spreading, where new oceanic crust is formed at mid-ocean ridges and slowly moves away, carrying with it the magnetic signature of Earth's magnetic field at the time of its formation.

The Magnetizations of Ocean-Floor Rocks Alternate in Direction in Strips