Asked by Dorothy Dietrich on Apr 24, 2024
Verified
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.
Verified Answer
T?
TextBook ?????5 days ago
Final Answer :
D
Explanation :
Magnetic reversals are used in various geophysical studies, including matching rock sequences to the magnetic timescale, studying magnetic stripes on the seafloor, and calculating rates of seafloor spreading. These applications are crucial in understanding Earth's geological history and plate tectonics.
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.