Oceanic crust that records negative magnetic anomalies formed when the Earth's magnetic field was
A)the same as it is today.
B)the same as today,except weaker.
C)reversed from what it is today.
D)the same as today,except stronger.

Question

Quizplus · Accepted Answer

Oceanic crust that records negative magnetic anomalies formed when the Earth's magnetic field was reversed from what it is today. This is because the Earth's magnetic field has reversed many times throughout its history, and these reversals are recorded in the oceanic crust as it forms at mid-ocean ridges and spreads outward.

Oceanic Crust That Records Negative Magnetic Anomalies Formed When the Earth's