MONDAY

• Be sure you hand in your “Seafloor Spreading” Lab questions AND “Earth As Magnet” lab.

• Science notebook needed today

Chapter 2: Plates and Mountains

I. Mountain Types

A. Folded Mountains- form when two plates collide.

B. Fault-Block Mountains- these form when masses of rock move up or down along a fault.

C. Dome Mountains- form when the surface is lifted by magma, forming a bulge or dome. Erosion strips away layers of rock exposing igneous rock below.

D. Volcanoes- Common along convergent and divergent boundaries. They form when magma erupts from an opening in the earth’s surface.

Monday

• Be sure to hand in the Plate Boundary map questions. If you need more time, see me.

• Pick up a clicker in the back and login!

• Notebook needed today as well

• If you were absent Friday, see me for quiz.

NORMAL FAULT• Fault blocks pull away from each

other. However, not most common type. Like a divergent boundary.

REVERSE FAULT• Movement of blocks is toward each

other like in a convergent boundary.

STRIKE-SLIP FAULT• Movement is generally horizontal

(like a transform boundary). Very common and most famous example is San Andreas fault.

THRUST FAULT

• Associated with areas of folded surfaces and/or mountain regions. Like subduction.

• Normal faults are often associated with divergent (tensional) boundaries.

• Thrust faults are often associated with convergent (compressional) boundaries.

• Strike-slip faults are often associated with

transform (sliding) boundaries.

• What kind of faults would you expect to find in the Himalaya Mountains? Why?

• What kind of faults would you expect to find along the Mid-Atlantic Ridge? Why?

• What kind of fault is the San Andreas Fault? Is California likely to "fall off into the Pacific Ocean"? Why?

SAN ANDREAS FAULT

NEW MADRID FAULT, MISSOURI

EARTHQUAKES IN SOUTH CAROLINA?

RAMAPO FAULT- NEW YORK

Faults

• Read B62-63

• Copy the Fault diagrams and descriptions into your science notebook

1. What is the relationship between faults and earthquakes?

2. What is the difference between a focus and an epicenter?