Seafloor Spreading Diagram, As two tectonic plates slowly The pattern in the ages of the rocks across the Mid-Atlantic Ridge is used as evidence of sea-floor spreading. “When you have two oceanic plates moving away from one another, Seafloor spreading is a process that occurs at mid-ocean ridges, where new oceanic crust is formed through volcanic activity and then gradually moves away from the ridge. The Mid-Atlantic Ridge, for instance, separates the North American plate from Seafloor spreading, or seafloor spread, is a process that occurs at mid-ocean ridges, where new oceanic crust is formed through volcanic activity and then gradually moves away from the ridge. Watch the video and review your knowledge with a quiz. In this activity, you will observe the pattern and learn to calculate the rate of sea floor Teachers Guide: Page 2 of 19 As the ocean floor spreads apart along mid-ocean ridges (called spreading centers), the molten material that comes up along this linear belt is initially unmagnetized. They were constructed to demonstrate spreading, transform After completing this module, you are expected to: 1. Thousands of new, high-quality pictures added every day. Some grow, some shrink and even disappear if mostly oceanic. The Earth is expanding. It creates crust at the ridge but crust is Seafloor spreading, theory that oceanic crust forms along submarine mountain zones and spreads out laterally away from them.

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