Marine magnetic anomalies can be used to estimate the ________.
A)rate of seafloor spreading
B)rate of seafloor subsidence
C)age of the seafloor sediments
D)rate of Earth's expansion

Question

Quizplus · Accepted Answer

Marine magnetic anomalies are caused by variations in the magnetic properties of the seafloor rocks. These variations can be used to estimate the rate of seafloor spreading, which is the process of new oceanic crust forming at mid-ocean ridges and moving away from the ridge axis. By measuring the age difference between magnetic stripes on either side of a mid-ocean ridge, scientists can estimate the rate of seafloor spreading.

Marine Magnetic Anomalies Can Be Used to Estimate the ________