Chapter 2: Motion At Plate Boundaries

Part complete Why are volcanoes NOT found at transform boundaries?

Transform boundaries do not cause changes to the pressure, temperature, or composition of the mantle.

Where are most modern divergent plate boundaries found?

at mid-ocean ridges

What causes melting of material under divergent plate boundaries?

decompression of rock

In general, where do earthquakes AND volcanic eruptions occur?

- Divergent plate boundaries - Convergent plate boundaries

The East African rift is a divergent plate boundary that is splitting the continent of Africa into two pieces. What will eventually form around this divergent boundary?

An ocean

What forms at divergent plate boundaries?

New Oceanic Lithosphere

Which type of faulting is associated with the development of new ocean floor?

Normal faulting

Part complete In general, where do volcanoes form in subduction zones?

On the overriding plate, away from the convergent boundary

How do plates move at divergent plate boundaries?

Plates move apart

How do plates move at convergent plate boundaries?

Plates move toward one another

How do plates move at transform plate boundaries?

Plates slide past one another

When do new oceans form?

when a continent is broken apart by a divergent boundary

Where do most divergent boundaries originate?

within continents