Quiz #11

26 September 2011

S.I. Session 11 Quiz

This quiz covers material from the lecture on Friday, September 23^rd.

Part a) Match the term to its definition:

                TERMS:

a)Thrust fault                     b)Dip                                     c) Fault Plane Fracture Zones

d)Reverse Fault                                e)Normal Fault                  f) Strike-Slip Fault

g) Strike and dip               h)Maps                                                i)Strength

                DEFINITIONS:

1)__This is always perpendicular to strike.

                                2)__These show simplified geologic structures beneath a thin surface cover.

3)__This is a measurement of how much force a rock (or any object) can withstand without breaking.

4)__This is a form of brittle failure, tension tends to stretch the rock and pull it apart.

5) __Valuable mineral deposits typically build up here.

6)__This is a low angle reverse fault that has undergone more than 50 meters of movement.

7)__ This is a form of brittle failure, compression forces dominate and the hanging wall rides up over the footwall.

8)__ This is a form of brittle failure, shear forces dominate. A good example of this type of occurrence is the San Andreas fault.

9)__ Geologists use this to describe the orientation of a rock formation in three-dimensional space.

Part b) Name the three forces that deform rocks at plate boundaries:

Part c) True or False:

                Mark T (true) or F (false) in the blank provided:

                                1)__ Water flows up dip.

2)__Dip is always parallel to strike.

3)__The scale on a typical regional map is 1 : 1,000,000.

4)__Marble is metamorphosed limestone.

5)__Fault planes in nature tend to have some kind of curvature.

6)__The terms “hanging wall” and “foot wall” stem from the mining industry.

7) __ The low angle of a thrust fault inhibits fault movement.

8) __ Strike is a horizontal line on an inclined plane.