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What is Understanding Sea-Floor Spreading about?

1. The mid-ocean ridges are chains of underwater mountains along cracks in the ocean floor where molten material rises from the mantle. 2. At the ridges, molten material erupts and spreads out, pushing the older ocean crust on either side and adding new sea floor material. This process is called sea-floor spreading. 3. Evidence that supports sea-floor spreading includes pillow-shaped rocks only formed under water, magnetized rock stripes on both sides of ridges that record magnetic field reversals, and d

Author

Del Mundo Kristi

Language

EN