Lecture Exam 1

Question 1

What is the type of force that causes rocks to be extended, or pulled apart?

Answer 1

Tension

Question 2

During what processes is oceanic crust recycled?

Answer 2

Subduction

Question 3

Why is the upper part of the mantle, called the asthenosphere, important in plate tectonics?

Answer 3

It is hot and plastic like, which allows the overlying plates to slide or move.

Question 4

At what type of plate boundary would you expect to find new oceanic crust being created?

Answer 4

Divergent

Question 5

At what type of plate boundary would you expect to see compressional forces dominate?

Answer 5

Convergent

Question 6

At what type of plate boundary would you expect to find a volcanic island arc?

Answer 6

Oceanic-oceanic convergence

Question 7

What happens at a divergent plate tectonic boundary?

Answer 7

Seafloor spreading

Question 8

What happens at a convergent plate tectonic boundary?

Answer 8

Subduction

Question 9

What is the surface feature associated with a divergent tectonic plate boundary?

Answer 9

Mid-ocean ridge or rift valley

Question 10

What type of plate tectonic boundary is associated with a continental arc?

Answer 10

Convergent

Question 11

At what type of plate boundary would you expect to see tensional forces dominate?

Answer 11

Divergent

Question 12

At what type of plate boundary would you expect to see shear forces dominate?

Answer 12

Transform