A theoretical model of the formation of magnetic striping. New oceanic crust forming continuously at the crest of the mid-ocean ridge cools and becomes increasingly older as it moves away from the ridge crest with seafloor spreading:
a. the spreading ridge about 5 million years ago.
b. about 2 to 3 million years ago.
c. present-day.
derived from File:Oceanic.Stripe.Magnetic.Anomalies.Scheme.gif
Chmee2