Important Concepts of Convergent Plate Boundaries

Questions and Answers

What is a trench?

A mountain formed by tectonic activity

A deep depression in the ocean floor when one plate subducts under another (correct)

A plateau formed by cooling lava

A volcanic island formation

What is a continental volcanic arc?

A chain of volcanoes formed at the edge of a continent due to adjacent subducting crust melting and rising up through the lithosphere.

What defines a subduction zone?

An area where one tectonic plate sinks beneath another.

What occurs at a continental-oceanic convergent plate boundary?

When an oceanic plate collides with a continental plate and the oceanic plate subducts under the continental plate. Signup and view all the answers

What happens at an oceanic-oceanic convergent plate boundary?

When two oceanic plates collide with each other and the older, denser oceanic plate subducts under the other one. Signup and view all the answers

What is an island volcanic arc?

A chain of volcanic islands that forms when oceanic crust subducts, melts and pushes its way to the surface. Signup and view all the answers

What are fold mountains?

A mountain that forms when two continental plates collide and push the lithosphere up into folds of land. Signup and view all the answers

What occurs at a continental-continental convergent plate boundary?

A plate boundary that forms when two continental plates collide into each other. Signup and view all the answers

Study Notes

Important Concepts of Convergent Plate Boundaries

Trench
- Deep depressions on the ocean floor caused by subduction, where one tectonic plate moves beneath another.
Continental Volcanic Arc
- Formed at the edge of a continent; volcanic activity arises from melting crust due to an adjacent subducting plate.
Subduction Zone
- Specific areas characterized by the sinking of one tectonic plate beneath another, leading to geological activity.
Continental-Oceanic Convergent Plate Boundary
- Occurs when an oceanic plate collides with a continental plate; results in the subduction of the denser oceanic plate under the continental plate.
Oceanic-Oceanic Convergent Plate Boundary
- Formed when two oceanic plates collide; typically, the older, denser plate subducts beneath the younger one, leading to the creation of features like island arcs.
Island Volcanic Arc
- A series of volcanic islands that develops where one oceanic plate subducts beneath another, melting and allowing magma to rise to the surface.
Fold Mountains
- Mountains created from the collision of two continental plates that push the lithosphere upward, resulting in folded land structures.
Continental-Continental Convergent Plate Boundary
- Formed when two continental plates collide, creating significant geological features like mountain ranges due to the immense pressure and uplift.

Description

Explore the essential concepts related to convergent plate boundaries in this quiz. Topics include subduction zones, trench formations, and volcanic arcs. Test your knowledge on how tectonic plates interact and the geological features that arise from these processes.