Plate Boundaries

Play an AI-generated podcast conversation about this lesson

Which type of plate boundary occurs where plates pull apart, faults and earthquakes occur, and volcanic rocks are produced?

Divergent (correct)

Convergent

Transform

None of the above

What type of rock is typically found at mid-ocean ridges?

Gabbro

Basalt (correct)

Granite

Rhyolite

Which type of plate boundary occurs where plates collide, faults and earthquakes occur, and the downgoing oceanic plate is subducted into the mantle?

Divergent

Convergent (correct)

Transform

None of the above

What type of volcanic material is typically found at convergent boundaries?

Andesite Signup and view all the answers

What type of plate boundary occurs where plates slide past each other horizontally, causing faults and earthquakes?

Transform Signup and view all the answers

What type of rock is typically found in regions of regional metamorphism during continental collision?

Slate Signup and view all the answers

What is the relationship between earthquake magnitude and the amount of rock moved during an earthquake?

Directly proportional Signup and view all the answers

Which part of the Earth's interior is the weaker region of the upper mantle that deforms by viscous flow?

Asthenosphere Signup and view all the answers

What is the main mineral that dominates the mantle?

Olivene Signup and view all the answers

Which type of crust is generally younger, thinner, and consists of basaltic rocks?

Oceanic crust Signup and view all the answers

Who proposed the theory of continental drift in 1912?

Alfred Wegener Signup and view all the answers

What evidence did Alfred Wegener use to support his theory of continental drift?

Similarity in shapes of Africa and South America Signup and view all the answers

Who realized that the magnetic polarity of basalts changed systematically with age, providing key evidence for plate tectonics?

Motonori Matuyama Signup and view all the answers

What drives plate movement according to the theory of plate tectonics?

Mantle convection Signup and view all the answers

Which type of seismic wave is not transmitted through liquid media?

S-waves Signup and view all the answers

What is the temperature of the mantle?

1330°C Signup and view all the answers

What is the Moho?

A chemical boundary between the Crust and the Mantle Signup and view all the answers

What are the three basic types of rock?

Igneous, sedimentary, metamorphic Signup and view all the answers

Which type of plate boundary involves the formation of mountain chains?

Convergent Plate Boundaries Signup and view all the answers

What is the Lithosphere Asthenosphere Boundary (LAB)?

A mechanical boundary between the Lithosphere and Asthenosphere Signup and view all the answers

Which type of plate boundary involves failed rifts?

Divergent Plate Boundaries Signup and view all the answers

Which type of rock undergoes textural and mineralogical changes as it is deformed, pressurized, and heated?

Metamorphic rock Signup and view all the answers

What are the three basic types of plate boundaries?

Divergent, convergent, and transform Signup and view all the answers

Where do transform plate boundaries occur?

Where one plate slides past another Signup and view all the answers

What happens at transform plate boundaries?

Sticking and stress buildup occur Signup and view all the answers

What is the San Andreas Fault?

A transform plate boundary Signup and view all the answers

Where is new lithosphere created?

At mid-ocean ridges Signup and view all the answers

Where is old lithosphere returned to the asthenosphere?

At subduction zones Signup and view all the answers

Where do earthquakes occur in plate tectonics?

At both sea-floor spreading regions and subduction zones Signup and view all the answers

Where is new igneous material produced in plate tectonics?