This is known as a rift valley. it forms at a divergent boundary.
A deep crack in the earth's surface is a fault It can also be a joint.
The prominent feature of the Mid-Atlantic Ridge is a very deep linear valley known as a rift valley. This rift valley forms due to the tectonic plates moving apart and allowing magma to rise from the mantle, creating new oceanic crust in the process.
fjord
The huge trough down the center of the mid-ocean ridge is where two tectonic plates are moving apart. As they separate, magma rises up from the mantle to fill the gap, creating new oceanic crust. This process is known as seafloor spreading.
When two of Earth's oceanic plates collide, they can form a deep valley called a trench. Trenches are often found in subduction zones where one plate is forced beneath the other, creating a deep depression in the ocean floor.
The answer to that very question that you have just stated i will answer. It is a simple RIFT VALLEY :)
A deep crack in the earth's surface is a fault It can also be a joint.
The prominent feature of the Mid-Atlantic Ridge is a very deep linear valley known as a rift valley. This rift valley forms due to the tectonic plates moving apart and allowing magma to rise from the mantle, creating new oceanic crust in the process.
Canyon
Canyon
trench
fjord
When two of Earth's oceanic plates collide, they can form a deep valley called a trench. Trenches are often found in subduction zones where one plate is forced beneath the other, creating a deep depression in the ocean floor.
The huge trough down the center of the mid-ocean ridge is where two tectonic plates are moving apart. As they separate, magma rises up from the mantle to fill the gap, creating new oceanic crust. This process is known as seafloor spreading.
At collision, mountains, at separation, long deep holes into the earth.
celtic for valley is comb but i dont know about deep valley
deep valley i think :)