World Record Title: The longest underwater mountain ranges: the mid-ocean ridge
World Record Creator: Mid-ocean ridge
World Record Holder: Mid-ocean ridge
World Record Fields: The longest undersea mountains
World Record Rules: The longest undersea mountains
World Record Number: 20120500007
World Record Validity Period: Until the world record was broken.
World Record Witness: Carrying the Flag World Records certifier 002
World Records Source: World record database of Carrying the Flag
Awarding Certificate Date: May 3, 2012
World Record Details:

       The longest underwater mountain ranges: the mid-ocean ridge. 80,000 km long. Mid-ocean ridge known as mid-ocean ridges, in the long or the central ridge. Uplift in the middle of the ocean floor, and throughout the world's oceans, the Earth's longest and widest global Xing Yang Zhongshan Department. In the Pacific, its location east, known as the East Pacific Rise (ridge). Mid-Atlantic Ridge was "S" shaped, with nearly parallel sides, can be extended northward to the Arctic Ocean. Indian Ridge of three, was "into" shape. Three oceans ridge in the southern hemisphere are interconnected, a total length of 80,000 km, an area of ​​about 120 million km 2, representing the world's oceans total area of ​​1/3. Its ridges are usually higher than the bottom of an ocean basin on both sides of ~ 3 km, ridge top depth of 2 to 3 km more than a few peaks exposed on the surface of the sea islands, such as Iceland, the Azores and so on. A series of mid-ocean ridges are often orthogonal or oblique fault stagger (called dislocation zone), where the Mid-Atlantic Ridge near the equator Romansh belt (Romanche gap), things dislocation distance of over 1000 km. Along the fault has narrow grooves, ridges and cliffs. In the Atlantic and Indian ocean ridges shaft portion, generally about 1 to 3 km deep, was the center of the vertical distribution fracture valley. Mid-ocean ridges are the most active crustal zone, frequent volcanic activity and earthquakes magma rising, horizontal fracture (transform faults) widespread. According to seafloor spreading and plate tectonics, ocean ridge is the center and the new oceanic crust expansion zone generated。Hot mantle material (molten magma) rising along the ridge axis, solidified into a ultramafic and mafic composition of the new oceanic crust, and to continue to expand both sides of passage. Expansion of the semi-speed (i.e. the speed per side) more than 1 to 5 cm / year. Accompanied by a huge earthquake and volcanic activity undersea mountain. It runs through the Pacific Ocean, the Indian Ocean, the Atlantic and the Arctic Ocean, connected to each other, a total length of 80,000 km, is the longest on the planet's largest mountain. In plate tectonics mode, the mid-ocean ridge top marked seafloor spreading axis, is a separate type of plate boundary. It is a huge undersea topography unit, is the most important building blocks of seabed