Chapter 17 Plate Tectonics

All of Earth's continents were once joined in a single landmass called what?

Cracks in the Earth's crust where plates move past one another:

These are the deepest part of the ocean.

This topo map is showing a:

is when the weight of a subducting plate pulls the trailing lithosphere into a subduction zone

The land form created when two continental plates collide, pushing the Earth's crust upward.

which evidence was not used by Wegener to support his hypothesis

The process happening in this illustration is most likely to create:

trenches and island arcs are formed at

Which kind of tectonic plate boundary is being represented by the red arrows on the map?

What term best describes the geologic event taking place in the illustration?

When the Earth’s magnetic field reverses direction, it is called

In the 1950's, patterns were found on the ocean floor. What did this provide evidence for?

Which city on the map is most likely to experience a major earthquake?

Folded mountain ridges occur at

as you move away from an oceanic ridge crust becomes

This is a line on a map that connects points that have the same age.

The two types of crust are _______ and _______.

is when the weight of an uplifted ridge pushes an oceanic plate toward a trench

Who was the scientist that first proposed the Theory of Continental Drift?

as you move away from an oceanic ridge sediment becomes

In the image, the circular paths shown by the red arrows represent _____.

Wegener had what type of evidence to support his Theory of Continental Drift?

At what location is the next hot spot volcano likely to form?

an area where an oceanic plate has become more dense and descends beneath another plate is a

In the Earth's mantle, heat is transferred in large convection currents. Within these currents:

Which kind of tectonic plate boundary is being represented by the arrows in the diagram?

volcanic mountain ranges and trenches are formed at

Why didn't the scientific community believe Wegener's Theory of Continental Drift?

Locations where volcanoes can form FAR from a plate boundary: