The Marianas (or Mariana) Trench is formed by the subduction of the Pacific Plate as it is forced under the smaller Mariana Plate at the bottom of the ocean between Japan and New Guinea.
An oceanic trench is formed. Divergent boundaries pull away from each other, forming a cavern in the ocean floor. The Marianas Trench is a good example of a divergent boundary.
---- ---- A volcano or a mountin forms when they push up and a threch is formed when it pushea down. When ever two plates meet they create an earthquake.
Assuming that you're referring to tectonic plates, nothing is formed when two plates move past each other other than a fault line and an earthquake.
they are formed by two tectonic plates pulling away from each other
At convergent plate boundaries, mountains and volcanoes form. That goes for continent to continent collisions and ocean to continent collisions. However, trenches, like the Mariana Trench are formed when two oceans collide.
Your D & V
The Mariana Trench is on two tectonic plates: The Pacific Plate and the Mariana Plate. The Pacific Plate is beneath the Mariana Plate by subduction.
When the plates separate water fills in the cracks, this leaves trenches ie. (Mariana Trench) the deepest part of the ocean approx. 7mil below sea level.
When the plates separate water fills in the cracks, this leaves trenches ie. (Mariana Trench) the deepest part of the ocean approx. 7mil below sea level.
The two plates are; Indo-Australian Plate subducts and Pacific Plate that form the Puysegur Trench.
A rift is created in the Earth's crust. An outstanding example of this is the Great Rift Valley in Africa.
a trench
It depends on the type of crust involved. If both plates carry oceanic crust, an ocean trench is formed along with a volcanic island are on the overriding plate. If one plate carries oceanic crust and the other continental, you will get an ocean trench, a continental volcanic arc, and a mountain range. If both plates carry continental crust, then a mountain range is formed.
Actually it formed where two plates hit each other and one was subducted.. This subduction, or moving under, causes trenches to form. This in fact is how the marianas trench was formed.
A subduction zone, that includes a ocean trench. This is only possible if one of the plates are oceanic, because if two continental plates collide a mountain range is formed.
A Transform Fault ZoneIn the textbook Earth Science and the Environment (4th Edition) by Thompson and Turk. Located on page 163, it shows that Tonga has a Convergent Boundary. A convergent boundary is where two lithospheic plates collide head on.
The deepest known trench is the Mariana Trench located off of the southern coast of Japan near the island of Guam. It's believed depth is about 11 km(6.8 mi). It is also located between two tectonic plates, where the Pacific Plate is subducted beneath the Phillipine Plate. - Zmaster804