Week 2, Interlude D, Chpt 11

Question 1

Continental crust, typically ____, is _____ than ______.

Answer 1

Continental crust, typically granitic, is thicker than ocean crust.

Question 2

Where do rocks act brittle?

Answer 2

The lithosphere

Question 3

What causes Earth’s magnetic field?

Answer 3

• The Earth’s core is conductive.

- The Earth is rotating quickly.

Question 4

A succession of paleopoles defines an

Answer 4

apparent polar-wander path.

Question 5

Where is new crust created?

Answer 5

At ridges.

Question 6

Where is old crust destroyed?

Answer 6

At trenches.

Question 7

What does a thicker layer of sediment represent?

Answer 7

More time.

Question 8

What explains the distribution of Earthquakes and volcanoes?

Answer 8

Plate Tectonics

Question 9

The process of consuming a plate.

Answer 9

Subduction

Question 10

Do continents subduct?

Answer 10

No

Question 11

The study of seismic waves, magnetism, gravity, and other physical characteristics of the Earth.

Answer 11

Geophysics

Question 12

Is the earth a perfect dipole?

Answer 12

No

Question 13

____ boundaries create crust while _____ boundaries destroy crust.

Answer 13

Divergent boundaries create crust while convergent boundaries destroy crust.

Question 14

Fracture Zone

Answer 14

Active transform where solid, brittle lithosphere gets broken up into segments.

Question 15

Hot spots overlie at a

Answer 15

mantle plume.