GEOLOGY

Detailed explanation-1: -A mid-ocean ridge (MOR) is a seafloor mountain system formed by plate tectonics. It typically has a depth of about 2, 600 meters (8, 500 ft) and rises about 2, 000 meters (6, 600 ft) above the deepest portion of an ocean basin.

Detailed explanation-2: -The MAR is about 3 km in height above the ocean floor and 1000 to 1500 km wide, has numerous transform faults and an axial rift valley along its length.

Detailed explanation-3: -The Mid-Atlantic Ridge runs down the center of the Atlantic Ocean, slowly spreading at a rate of 2 to 5 centimeters (0.8 to 2 inches) per year and forming a rift valley that is about the depth and width of the Grand Canyon.

Detailed explanation-4: -The seafloor depth increases with distance away from the midocean ridges. The midocean ridges lie about 2.5 km below sea level. The depths increase quickly at first and then more gradually to 4 km to 5 km to 6 km below sea level.

Detailed explanation-5: -The mid-ocean ridge wraps around the globe for more than 65, 000 km like the seam of a baseball. The average depth to the crest (top) of the ridge is 2500 m, but it rises above sea-level in Iceland and is more than 4000 m deep in the Cayman Trough.