How does the ocean floor keep track of magnetic fields

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A. There are magnets in the ocean floor

B. All rocks act like magnets

C. Being underwater makes the rocks respond to magnetic fields

D. Basalt is iron- rich and responds to magnetic fields

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blueberries3 blueberries3 · Answer 1 · 2018-11-17T00:43:54+01:00

D! Just went over it yesterday

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luisvaschetto luisvaschetto · Answer 2 · 2022-01-21T13:19:10+01:00

The ocean floor keeps track of magnetic fields because basalt is iron-rich and responds to magnetic fields (Option D).

Basalt is a volcanic rock composed of low-viscosity lava, which is characterized to be rich in magnesium and iron.

Basalt is an igneous rock that exhibits magnetic properties due to the presence of oxide minerals and metals in its composition.

Paleomagnetic analyses of the Earth's crust generally use basalt due to its magnetic properties.

In conclusion, the ocean floor keeps track of magnetic fields because basalt is iron-rich and responds to magnetic fields (Option D).

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