Dictionary of Geotourism

2020 Edition
| Editors: Anze Chen, Young Ng, Erkuang Zhang, Mingzhong Tian

Mid-ocean Ridge

Reference work entry
DOI: https://doi.org/10.1007/978-981-13-2538-0_1560

Mid-ocean ridges are also called oceanic central mountain ridges. These ridges are the longest and widest underwater mountain systems in the world; they cover approximately 33% of the ocean floor. The mid-ocean ridge known as the East Pacific Rise is located in the eastern Pacific Ocean, and it has fewer undulations than the Mid-Atlantic Ridge. The Mid-Atlantic Ridge is S-shaped and parallel to the coasts of both adjacent. The Central Indian Ocean has a ‘^’ shape. The southern ends of the mid-ocean ridges of these three oceans connect in the southern hemisphere, whereas their northern ends enter the mainland via shallow seas or bays. The Mid-Atlantic Ridge is approximately 1–3 km higher than the adjacent oceanic basin floor, and the ridge top is approximately 2–3 km below sea level; however, parts of the ridge are above sea level, such as on Iceland. The mid-ocean ridges are dissected by a series of large faults that are perpendicular to or slightly oblique to the mountain ranges....

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