Science W2 - Plate Boundaries Flashcards
Are active regions on Earth where tectonic plates interact.
Plate Boundaries
Three distinct types of plate boundaries
Divergent Boundary
Convergent Boundary
Transform Boundary
A place where two plates move away from each other.
Divergent Plate Boundaries
Also called as constructive plate margins.
Divergent Plate Boundaries
In the ocean, divergent plate boundaries form a mountain chain known as a _____.
Ridge
Within continents, divergent margins produce ____________.
Rift Valleys
Is a place where two plates move toward each other.
Convergent Boundaries
Are also called destructive plate margins or subduction.
Convergent Boundaries
In Oceanic-Continental Convergent Boundary, which lithosphere always subduct under which lithosphere?
Oceanic lithosphere always subduct under continental lithosphere
In Oceanic-Oceanic Convergent Boundary, what kind of plate usually subducts, and it is a site of what formation?
Older, denser plate usually subducts, site of Island Arc formation
In this Convergent Boundary, the plates are relatively light and therefore resist subduction.
Continental-Continental Convergent Boundary
Are regions on earth where two plates are sliding alongside each other.
Transform Boundaries
It is the fracture where plates meet.
Transform fault
Which plates form:
Mid-Atlantic Ridge
North American Plate and Eurasian Plate
Which plates form:
East Pacific Rise
• Cocos Plate and Pacific Plate
• Nazca Plate and Antarctic Plate
