Does the Mid-Atlantic Ridge have deep sea trenches?

Near the equator, the Mid-Atlantic Ridge is divided into the North Atlantic Ridge and the South Atlantic Ridge by the Romanche Trench, a narrow submarine trench with a maximum depth of 7,758 m (25,453 ft), one of the deepest locations of the Atlantic Ocean.

Is the Mid-Atlantic Ridge underwater?

The Mid-Atlantic Ridge (MAR) is a mostly underwater mountain range in the Atlantic Ocean that runs from 87°N -about 333km south of the North Pole- to subantarctic Bourvet island at 54°S.

How deep is the water at the Mid-Atlantic Ridge?

1,700 to 4,200 meters
The depths of the Atlantic Ocean are home to fascinating geological features and unusual life forms. The Mid-Atlantic Ridge (MAR) is a massive underwater mountain range, 1,700 to 4,200 meters (1 to 2.6 miles) below sea level, that runs from the Arctic Ocean to the Southern Ocean.

What is the deep crack in the Mid-Atlantic Ridge?

The Sea Floor Spread The chain runs down the middle of the Atlantic Ocean (surfacing at Iceland), around Africa, through the Indian Ocean, between Australia and Antarctica, and north through the Pacific Ocean. Running along the top of this chain of mountains is a deep crack, called a rift valley.

What are 5 facts about the Mid-Atlantic Ridge?

The Mid-Atlantic Ridge is the longest mountain chain on Earth. It runs along the Atlantic Ocean floor from North America to beyond the southern tip of Africa. It rises 6,000–13,000ft (2,000–4,000m) above the sea floor, and runs for 10,000 miles (16,000km). Beneath the ridge is a place of great volcanic activity.

What is at the center of a mid-ocean ridge?

The material that erupts at spreading centers along the mid-ocean ridge is primarily basalt, the most common rock on Earth. Because this spreading occurs on a sphere, the rate separation along the mid-ocean ridge varies around the globe.

Is there life at the Mid-Atlantic Ridge?

The explorers found approximately 1,000 species, from small crustaceans to whales, including at least 30 new species. They found both mid-water animals from deep basins and bottom-living animals along slopes.

What happens to the sea floor at the Mid-Atlantic Ridge?

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.

Why is the ocean floor pulling apart at Mid-Atlantic Ridge?

As new seafloor forms, the earth’s tectonic plates move apart in opposite directions at these spreading centers. As the tectonic plates move apart, rock is pulled up from depth at the spreading axis and melts as it depressurizes.

Is the Mid-Atlantic Ridge still active?

The Mid-Atlantic Ridge is in effect an immensely long mountain chain extending for about 10,000 miles (16,000 km) in a curving path from the Arctic Ocean to near the southern tip of Africa.

Where is the older rock on the sea floor?

The oldest patch of undisturbed oceanic crust on Earth may lie deep beneath the eastern Mediterranean Sea – and at about 340 million years old, it beats the previous record by more than 100 million years.

Is the Mid-Atlantic Ridge Atlantis?

It is located at approximately 30°8′N latitude 42°8′W longitude; just east of the intersection of the Mid-Atlantic Ridge with the Atlantis Transform Fault….