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Undersea mountain ranges are mountain ranges that are mostly or entirely underwater, and specifically under the surface of an ocean. If originated from current tectonic forces, they are often referred to as a mid-ocean ridge. In contrast, if formed by past above-water volcanism, they are known as a seamount chain.
Most mid-ocean ridges of the world are connected and form the Ocean Ridge, a global mid-oceanic ridge system that is part of every ocean, making it the longest mountain range in the world. The continuous mountain range is 65,000 km (40,400 mi) long (several times longer than the Andes , the longest continental mountain range), and the total ...
The Mid-Atlantic Ridge is a mid-ocean ridge (a divergent or constructive plate boundary) located along the floor of the Atlantic Ocean, and part of the longest mountain range in the world. In the North Atlantic, the ridge separates the North American from the Eurasian plate and the African plate, north and south of the Azores triple junction.
The Andes range consist of hundreds of mountain peaks.. The world's longest above-water mountain range is the Andes, [1] about 7,000 km (4,300 mi) long. The range stretches from north to south through seven countries in South America, along the west coast of the continent: Venezuela, Colombia, Ecuador, Peru, Bolivia, Chile, and Argentina.
Viaud Ridge is an underwater mountain range in the Indian Ocean [1] located in the Laccadive Sea. [2] The neighbouring land masses are Sri Lanka, [1] [3] with the capital Colombo 650 kilometers to the north-north-east, [1] [4] [5] the southern tip of India to the north and the Maldives to the west, at the latitude of Addu Atoll.
The Hawaiian–Emperor seamount chain is a mostly undersea mountain range in the Pacific Ocean that reaches above sea level in Hawaii.It is composed of the Hawaiian ridge, consisting of the islands of the Hawaiian chain northwest to Kure Atoll, and the Emperor Seamounts: together they form a vast underwater mountain region of islands and intervening seamounts, atolls, shallows, banks and reefs ...
Descending up to 40 meters beneath the Baltic Sea, the world’s longest immersed tunnel will link Denmark and Germany, slashing journey times between the two countries when it opens in 2029.
The Norfolk Ridge (Norfolk Island Ridge, Norfolk Rise, South New Caledonia Ridge [2]) is a long submarine ridge running between New Caledonia and New Zealand, about 1,300 km (810 mi) off the east-coast of Australia. [3] It is part of a complex region of ridges between the oceanic crust of the Pacific plate and the continental crust of Australia.