How are mid ocean ridges formed?

Answer 1

Since it is located at a divergent or lateral plate boundary, magma from the mantle flows out to the Earth's surface through a crack found on the Earth's crust. The magma cools and solidifies upon reaching the Earth's surface, forming a new landform made of magma or igneous rocks( derived from solidified magma) such as a volcano, or sometimes, a volcanic island, such as Hawaii. This usually occurs at ocean basins.

To correct the previous answer, Hawaii is not actually on a mid-ocean ridge, it is an island chain formed by a hotspot under a moving plate (you can tell because the oldest volcanoes are at one end and youngest at the other).

Volcanoes formed by the Pacific MOR tend not to reach the surface. Better examples are in the Atlantic: Iceland, the Azores, Ascension, Tristan da Cunha. Best example of what exactly is happening at the MOR is Bermuda, which was originally formed on the Atlantic MOR and has been pushed so far sideways as more crust formed in the centre, it is now far away from the active MOR.

Answer 2

Underneath the middle of the Atlantic Ocean, deep in the earth there is an area of very hot rock in the Earth's mantle, under great pressure. It forces its way upwards on a hot upwards current of 'plastic' rock, then it spreads out underneath the ocean floor, pulling the ocean floor with it. The ocean floor stretches and then tears open, a bit at a time, each time causing an earthquake. If the tear is deep enough, some of the molten rock might find a way through the tear, reaching the floor of the ocean as an underwater lava flow or even a volcano. Some very large volcanoes might break the surface of the ocean. An example is the island Iceland, which is made from many volcanoes.

2. sediments include thick siliceous ooze deposits and sandy turbidite beds

Answer 3

A mid-oceanic ridge is formed when an underwater mountain range is formed by plate tectonics. The uplifting of the ocean floor occurs when the currents rise in the mantle beneath the crust and creates magma.

Answer 4

Mid ocean ridges are where new oceanic crust forms. Mantle passively up wells, and partially melts due to reduction of pressure on it. The melt migrates upwards, and freezes to make new ocean crust.

Answer 5

Mid-ocean ridges are formed by the process of seafloor spreading, where new oceanic crust is created at the boundary between two tectonic plates moving apart. As the two plates separate, hot mantle material rises to the surface, solidifies, and forms a continuous mountain range along the ocean floor. This creates a long, linear volcanic ridge that can extend for thousands of kilometers across the ocean basin.

Answer 6

Mid-Ocean Ridges forms where a continental plate slides under an oceanic plate. I hope this is what your looking for ! ! !:D