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  • 22-09-2020
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What is the first step in the process of sea-floor spreading?

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irelandshatcher1223
irelandshatcher1223 irelandshatcher1223
  • 22-09-2020
Seafloor spreading occurs at divergent plate boundaries. As tectonic plates slowly move away from each other, heat from the mantle's convection currents makes the crust more plastic and less dense. The less-dense material rises, often forming a mountain or elevated area of the seafloor.
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