These are called Ocean ridges. The most noted one is the mid-atlantic ridge.
That is a glacier. Glaciers form from compacted snow that has accumulated over time and flows downhill under the force of gravity.
The crust under the ocean is typically about 3 to 5 miles (5 to 8 kilometers) deep.
The slope is the steep incline at the edge of the continental shelf that descends into the ocean depths. The continental shelf is a gently sloping, submerged portion of a continent that extends from the shoreline to the shelf break where the slope begins.
Yes, the Grand Canyon was once submerged under an ocean millions of years ago.
Crust under the oceans is called oceanic crust.
ocan
Trenches
Continental shelf
That is a glacier. Glaciers form from compacted snow that has accumulated over time and flows downhill under the force of gravity.
An ancient under sea valley carved in the ocean floor is known as a canyon, usually given the name of the contributory river on the land. such as the Hudson Canyon, or the Clutha Canyon.
If you are referring to Death Valley, California. It does not get flooded because there is a large mass of rock in the form of mountains and continental crust between the ocean and the valley. All that rock is quite capable of keeping the ocean from seeping in.
The Arkansas river valley was formed by streams of water on when the state of Arkansas was under the ocean 400 billion years ago
It is formed by an upwelling of hot mantle material under the valley (which has elevated the land) and then split it as the hot mantle moves sideways away form the center of upwelling. This results in volcanoes and a Graben fault system (a rift valley) above the upwelling. Essentially the Rift Valley is the start of a new ocean - the two sides of Africa are splitting apart.
go under the valley of eureka
you can use horse hair to aborb oil or get a thin metal plate with sides,put it under the oil and pick it up and recycle itsave our world.....
A rift valley is formed when tectonic plates move apart, creating a gap in the Earth's crust. This process is often associated with divergent boundaries where new crust is formed as magma rises to fill the gap. Rift valleys can be found on land or under the ocean.
If there is an earthquake under an ocean, tsunami is possible.