11. In ( 1 ), seafloor spreading has begun, and a mid-ocean ridge is formed. 12. "It's gorgeous, " said Linda Giesler, an Ocean Ridge resident. 13. Much of the Earth's oceanic crust is made of gabbro, formed at mid-ocean ridges . 14. The 542 Ocean Ridge who came to the polls did so under heavy scrutiny. 15. As the plates continue to move over time, these faults offset the mid-ocean ridge . 16. Subsequent surveys of other ocean ridges showed similar and correlatable anomalies in every case. 17. It is not exclusive to these plate margins, occurring at hotspots and ocean ridges . 18. As molten magma rises at a mid-ocean ridge it heats the rocks around it. 19. Mid-ocean ridges are divergent boundaries that push apart two plates. 20. These vents have been observed to vent hydrothermal interaction on a slow-spreading mid-ocean ridge .
