Table of Contents
- 1 What is the difference between a trench and a rift?
- 2 What is the difference between a mid ocean rift zone and a trench?
- 3 What is the difference between a ridge and a trench?
- 4 Are trenches rift valleys?
- 5 Why are most oceanic trenches in the Pacific?
- 6 Where do ocean ridges most often form?
- 7 What is the longest trench in the world?
- 8 What is an example of a trench?
- 9 What is the difference between a rift valley and a mid plate?
- 10 How are subduction zones related to the ocean trench?
What is the difference between a trench and a rift?
As nouns the difference between trench and rift is that trench is a long, narrow ditch or hole dug in the ground while rift is a chasm or fissure.
What is the difference between a mid ocean rift zone and a trench?
Explanation: Mid-ocean ridges are areas of rifting where two tectonic plates are diverging from one another. Rifting creates new crust. Deep-ocean trenches are formed at convergent plate boundaries where the more dense plate (usually the oceanic) subducts under the less dense (usually continental).
What’s the difference between rifts and ridges?
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 is the difference between a ridge and a trench?
Trench: very deep, elongated cavity bordering a continent or an island arc; it forms when one tectonic plate slides beneath another. Ridge: underwater mountain range that criss-crosses the oceans and is formed by rising magma in a zone where two plates are moving apart.
Are trenches rift valleys?
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. As per Wikipedia: a rift valley is a type of trench!
How deep is the Puerto Rican trench?
According to NOAA: The deepest part of the Puerto Rico Trench is just over 8,600 meters (5.3 miles).
Why are most oceanic trenches in the Pacific?
Why are most oceanic trenches found in the Pacific Ocean? The Pacific Ocean is shrinking and plates are descending below surrounding plates along its edges, hence the creation of trenches.
Where do ocean ridges most often form?
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.
What are common in rift valleys and oceanic ridges?
Answer: The common among the pictures is the formation of divergent plate boundary, where it forms the rift valleys and oceanic ridges. The four presented pictures are most likely bodies of water that has a tight space of water movement.
What is the longest trench in the world?
the Mariana Trench
Then explain to students that the Mariana Trench is the deepest part of the ocean and the deepest location on Earth. It is 11,034 meters (36,201 feet) deep, which is almost 7 miles.
What is an example of a trench?
A long narrow ditch dug in World War I to protect troops from being seen by the enemy is an example of a trench. Trench means to dig a long and narrow ditch. When you dig a long, narrow ditch to place a pipe, this is an example of a time when you trench. A deep furrow or ditch.
What’s the difference between a trench and a rift?
A trench is a long, narrow, deep depression in the ocean bed, typically one running parallel to a plate boundary and marking a subduction zone. A rift is a land form fissure or break especially through large-scale faulting. An ocean basin is regarded more as basaltic plain.
What is the difference between a rift valley and a mid plate?
The space left behind opens a large hole between the plates that is either filled with sediment, magma flowing from the mantle, or water. 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.
Subduction Zones. When the leading edge of a dense tectonic plate meets the leading edge of a less-dense plate, the denser plate bends downward. This place where the denser plate subducts is called a subduction zone. Oceanic subduction zones almost always feature a small hill preceding the ocean trench itself.
How are ocean trenches a feature of convergent plate boundaries?
In particular, ocean trenches are a feature of convergent plate boundaries, where two or more tectonic plate s meet. At many convergent plate boundaries, dense lithosphere melts or slides beneath less-dense lithosphere in a process called subduction, creating a trench.