0
Does the magnetic memory of rock on the ocean floor change over time?
Wiki User
∙ 12y ago
Wiki User
∙ 12y ago
Add your answer:
Earn +20 pts
Why does the magnetic polarity of the ocean floor change in stripes?
The Earth has two poles, the north pole and the south pole that behave like giant magnets. The rock on the ocean floor contains iron. The rock began as molten material that cooled and hardened. As the rock cooled, the iron bits inside lined up in the direction of Earth's magnetic poles. This locked the iron bits in place, giving the rocks a permanent "magnetic memory". The stripes are significant because of the "magnetic memory" giving us an idea of what occurred when sea-floor spreading took place.
What is sea floor spreading and what evidence do we have to prove it is happening?
Magnetic minerals on the ocean floor.
What are magnetic strips on the floor caused by?
Movement of the ocean crust
Is there magnetic strips on the ocean floor are places where oceanic crust sink back to the mantle?
Is there magnetic stripe son the ocean floor are places where oceanic crust sink back to the mantle
Vine and Matthews determined that new ocean floor was being produced at ocean ridges by examing?
the magnetic pattern on the sea floor
What are magnetic strips on the sea floor caused by?
Movement of the ocean crust
The magnetic record in the rock on the ocean floor depends on when the rock was?
i dont know
Are magnetic stripes visible earths ocean floor?
Yes ndj D6ff gwbzusnheudhebuuduendjjdjxnnsj
What feature on the ocean floor does the lines on the strips represent?
It represents the pattern of the magnetic strip.
Why are magnet patterns important evidence for plate tectonics?
magnetic rocks on the ocean floor show that the Earths magnetic field has been frequently reversed forming new sea floor.
What are types of evidence that the sea floor is expanding?
Rocks have a north and south pole. The sea floor was discovered to have different magnetic poles on cracks in the ocean floor.
What did scientist discovere when they analyzed the magnetic bands on the ocean floor?
Scientists found Alternating bands of magnetism.
