Chapter 17 - Plate Techtonics

Which layer has convection currents?

What kind of feature forms along a continental-continental boundary?

What type of plate boundary would cause mountains to form?

A mid-ocean ridge occurs at a ________ plate boundary.

The theory of seafloor spreading was introduced in the 1960s by who?

When two oceanic plates are spreading apart at a divergent boundary it creates a what?

Earthquakes and volcanoes are most likely found in which locations?

What was Wegner's hypothesis called?

What is the name of the plate boundary that slides past each other?

What type of boundary is shown?

The Great Rift Valley in Africa and the Mid-Ocean Ridge were all created by this boundary:

Transform boundaries are most likely to produce what phenomenon?

In 1912, who proposed the hypothesis about continental movement to the scientific community?

What type of boundary is shown?

The Himalayas in Asia are an example of what type of plate boundary?

Continental plates are mostly made of

As you move away from a oceanic ridge, the rock gets

Oceanic plates are mostly made of

A magnetic reversal happens when

Ridge push and slab pull are two of the processes that move tectonic plates over the surface of the earth.

How fast do plates move relative to each other?

What kind of currents develop in the mantle transferring thermal energy from the Earth's interior to its exterior?

What are two types of crust?

Which is a convergent boundary that does not have a subduction zone?

Which suggested to early cartographers that the continents were once joined?

Subduction zones in the ocean can create which features?

Granite is less dense than basalt

When one plate slides underneath another, it _________ and the plate _________.

Why do oceanic plates always subduct under continental plates?

Generally, what is the age of oceanic crust?