Asked by Dorothy Dietrich on Apr 24, 2024
What are some uses of magnetic reversals?
A) matching the patterns of reversals in a rock sequence to the magnetic timescale
B) studying magnetic stripes on the seafloor
C) calculating rates of seafloor spreading
D) all of these
Magnetic Reversals
A phenomenon where Earth's magnetic field changes direction, with magnetic north and south poles swapping places.
Seafloor Spreading
A process occurring at mid-ocean ridges, where new oceanic crust is formed through volcanic activity and then gradually moves away from the ridge.
- Perceive the influence of magnetic fields in the understanding of Earth's geology, notably in terms of magnetic reversals and the spreading of the seafloor.
Learning Objectives
- Perceive the influence of magnetic fields in the understanding of Earth's geology, notably in terms of magnetic reversals and the spreading of the seafloor.