11. Scientists named it the " Mid-Atlantic Ridge ". 12. Therefore, the volcanic sea mountain first formed from the mid-Atlantic ridge approximately 100 million years ago. 13. He was the first to note the existence of the Mid-Atlantic Ridge and of oceanic trenches. 14. The wreck lies at, near the Mid-Atlantic Ridge . 15. Some went remarkably quickly to the Mid-Atlantic Ridge . 16. We started to watch the Atlantic ridge . 17. The Azores lies a third of the distance between Europe and North America, along the Mid-Atlantic Ridge . 18. He worked with oceanographic cartographer Marie Tharp at Columbia University to map the Mid-Atlantic Ridge in the 1950s. 19. In July 1968, " Josiah Willard Gibbs " surveyed a large fracture zone crossing the Mid-Atlantic Ridge at. 20. Bermuda now sits far to the west of the Mid-Atlantic Ridge in foothills that once were the ridge.