Plate tectonics

What are the relative directions of motion on either side of a transform boundary?

• Plates move apart

• Plates move toward each other

• Plates slide past each other

Which boundaries have examples of transform plate boundaries? The boundaries between the:

• Nazca and South American Plates

• Pacific plate and North American plate

• Pacific and Indian-Australian plate

• Scotia plate and Antartica plate

• Caribbean and North American Plate

Examine the idealized map that shows the location of two segments of oceanic ridge separated by a transform plate boundary. Where do earthquakes occur?

• Between A and D

• Between B and C

• From A to B and C to D

The presence of volcanic hot spots is characteristic of transform boundaries

• True

• False

Examine the idealized maps which illustrate an oceanic ridge (double lines) separated by a transform boundary. Which image shows the correct plate motions associated with the transform boundary?

• A

• B

• C

• D

The Pacific plate is moving _________ relative to the North American plate along the San Andreas Fault system.

• West

• East

• South

• North

The youngest rocks on the ocean floor are located

• Near continents

• Far from mid-ocean ridges

• At oceanic ridges

• Near the poles

Which boundaries are examples of divergent plate boundaries? The boundaries between the

• Nazca and South American plates

• Pacific plate and Eurasian plate

• North American and Eurasian plate

• Indian-Australian plate and Antartica plate

The oceanic ridge system is present in the

• Pacific and Atlantic Oceans but not the Indian Ocean

• Indian and Pacific oceans, but not Atlantic Ocean

• Pacific, Atlantic and Indian Oceans

The presence of _________ and _________ are characteristics of divergent

• An oceanic ridge

• Shallow earthquakes

• Hot spots

• Island arcs