Plate boundaries Flashcards
The solid and rigid outer layer of the Earth
Lithosphere
2 parts of Earth’s Lithosphere
Crust and Mantle
2 parts of crusts
Oceanic and Continental crusts
It is made up of igneous, metamorphic, and sedimentary rocks
Crust
Which is denser? Oceanic or Continental crusts?
Oceanic crusts
Which is less dense? Oceanic or Continental crusts
Continental crusts
Why do you think Oceanic crust is denser than continental crusts?
Because the rocks are rich in Iron and Magnesium.
It is an area where the plates move father than apart from each other.
Divergent boundaries
What plates move apart to form Silfra rift valley in Iceland?
Somali and Nubian plate
In this boundary, the plates crash into each other.
Convergent boundaries
The area where the plates slide to each other.
Transform boundaries.
The four plates that interact near the islands of Japan.
North American, Pacific, Eurasian, and Philippine Sea plates
When two continental plates collide, two crusts push each other upward or sidewards
Continental - continental convergent boundary
The denser oceanic crust sinks below the less dense continental crust.
Cotinental - Oceanic convergent boundary
The sideways and downward movement of the edge of a plate of the earth’s crust into the mantle beneath another plate.
Subduction
The area where the plates slide to each other.
Transform boundaries
The two plates slid to each other, causing a devastating earthquake on Port au Prince, Haiti in 2010.
North American and Carribean plates
Why are the rocks near the divergent boundaries are younger than those father away from the boundary?
New rocks are formed on the boundary
The two plates that involve San Andreas fault in California
North American and Pacific plate
The longest transform fault found in North America.
San Andreas fault
