Quick Answer: What Is The Mid Atlantic Ocean Ridge Why Is It Important?

What are some examples of mid ocean ridges?

Mid-ocean ridges are typically half a mile to six miles wide and over a mile underwater.

Two of the most well-known mid-ocean ridges are the Mid-Atlantic Ridge and the East Pacific Rise.

As you might guess, most of the Mid-Atlantic Ridge is in the Atlantic, and most of the East Pacific Rise is in the Pacific..

Where are the mid ocean ridges located?

The Mid-Atlantic Ridge extends from south of Iceland to the extreme South Atlantic Ocean near 60° S latitude. It bisects the Atlantic Ocean basin, which led to the earlier designation of mid-ocean ridge for features of this type. The Mid-Atlantic Ridge became known in a rudimentary fashion during the 19th century.

How old is the Mid Atlantic Ridge?

Fission-track dating of basaltic glass from the Mid-Atlantic Ridge gives results which are consistent with the proposal of ocean-floor spreading. Solidification ages from ~10,000 years to ~300,000 years were measured.

What would happen if the Mid Atlantic Ridge stopped creating new land?

Answer Expert Verified Once it moves apart, lava will fill the new space and will then be cooled by the ocean, forming new rock. If the mid-atlantic ridge stops forming new rocks, then we wouldn’t have new land / soil to plant food into and get resources from.

What do you mean by Mid Atlantic Ridge?

Mid-Atlantic Ridge, submarine ridge lying along the north-south axis of the Atlantic Ocean; it occupies the central part of the basin between a series of flat abyssal plains that continue to the margins of the continental coasts.

What does the Mid Atlantic Ridge look like?

The Mid-Atlantic Ridge includes a deep rift valley that runs along the axis of the ridge along nearly its entire length. This rift marks the actual boundary between adjacent tectonic plates, where magma from the mantle reaches the seafloor, erupting as lava and producing new crustal material for the plates.

What are the characteristics of mid ocean ridges?

A mid-ocean ridge (MOR) is a seafloor mountain system formed by plate tectonics. It typically has a depth of ~ 2,600 meters (8,500 ft) and rises about two kilometers above the deepest portion of an ocean basin. This feature is where seafloor spreading takes place along a divergent plate boundary.

What is the likely cause of melting at mid ocean ridges?

As mantle ascends beneath the mid-ocean ridge, less and less rock lies above it, so large pressure changes occur, which leads to melting. The melt is less dense than the solid, and rises to the surface to form the oceanic crust.

How long ago was it when Africa was directly at or near the mid Atlantic Ridge?

96 million years ago96 million years ago, Africa was directly at/or near the Mid-Atlantic Ridge.

What is the difference between a rift valley and a mid ocean ridge?

The major difference between different types is what type of plate the divergent boundary is between. If the boundary is found between two continental plates you are left with a rift valley. … If two oceanic plates begin moving away from each other it creates a mid-oceanic ridge.

What do mid ocean ridges do?

Mid-ocean ridges occur along divergent plate boundaries, where new ocean floor is created as the Earth’s tectonic plates spread apart. As the plates separate, molten rock rises to the seafloor, producing enormous volcanic eruptions of basalt.

Are there volcanoes at mid ocean ridges?

The vast majority of volcanic activity on the planet occurs along the mid-ocean ridge, and it is the place where the crust of the Earth is born. … The material that erupts at spreading centers along the mid-ocean ridge is primarily basalt, the most common rock on Earth.

Which mid ocean ridge is spreading the slowest?

The Ridge is named after him, and the name was recognized in April 1987 by SCUFN (under that body’s old name, the Sub-Committee on Geographical Names and Nomenclature of Ocean Bottom Features). The ridge is the slowest known spreading ridge on earth, with a rate of less than one centimeter per year.

Are there earthquakes in the Mid Atlantic Ridge?

The ridge marks where two tectonic plates are spreading apart (a divergent plate boundary). Most of the mid-Atlantic Ridge is deep underwater and far from human development, but Iceland, which sits directly over the mid-Atlantic Ridge, has experienced earthquakes as large as at least M6.

What will happen to the Mid Atlantic Ridge in the future?

As the tectonic plates move apart, rock is pulled up from depth at the spreading axis and melts as it depressurizes. The molten rock rises to the seafloor and cools to form the layer of crust that paves the ocean floor. … Seafloor spreading at the Mid-Atlantic Ridge.

Is the Mid Atlantic Ridge a subduction zone?

One of these mid-ocean ridges, the Mid-Atlantic ridge , is spreading apart making the Atlantic Ocean wider. … This drives the oceanic plates deep into the mantle destroying the oceanic plates. This boundary in which an oceanic plate is driven down and destroyed by a continental plate is called a subduction zone.

What causes the Mid Atlantic Ridge?

The Mid Atlantic Ridge, like other ocean ridge systems, has developed as a consequence of the divergent motion between the Eurasian and North American, and African and South American Plates. … In this way, as the plates move further apart new ocean lithosphere is formed at the ridge and the ocean basin gets wider.

Why was the discovery of the Atlantic ridge important?

The ridge was discovered in the 1950s. Its discovery led to the theory of seafloor spreading and general acceptance of Wegener’s theory of continental drift.