1. 1. The strike of the plane represented by the great circle trace on the equal area plot at left is:
A – S55E
B – N25W
C – 305
D – 355

2. 1. The strike of the plane represented by the great circle trace on the equal area plot at left is:
A – S55E
B – N25W
C – 305
D – 355
305 or N55W

3. 2. The dip of the plane represented by the great circle trace on the equal area plot at left is:
A – horizontal
B – shallow (1⁰-30⁰)
C – moderate (31⁰-60⁰)
D – steep (61⁰-89⁰)
E – vertical

4. 2. The dip of the plane represented by the great circle trace on the equal area plot at left is:
A – horizontal
B – shallow (1⁰-30⁰)
C – moderate (31⁰-60⁰)
D – steep (61⁰-89⁰)
E – vertical

5. 3. The dot on the equal area plot at left is the pole to a plane
3. The dot on the equal area plot at left is the pole to a plane. The trend of the pole is:
A – S15W
B – N15E
C – 007
D – 185

6. 3. The dot on the equal area plot at left is the pole to a plane
3. The dot on the equal area plot at left is the pole to a plane. The trend of the pole is:
A – S15W
B – N15E
C – 007
D – 185

7. 4. The plunge of the pole is:
A – horizontal
B – shallow (1⁰-30⁰)
C – moderate (31⁰-60⁰)
D – steep (61⁰-89⁰)
E – vertical

8. 4. The plunge of the pole is:
A – horizontal
B – shallow (1⁰-30⁰)
C – moderate (31⁰-60⁰)
D – steep (61⁰-89⁰)
E – vertical

9. 5. The strike of plane represented by this pole is:
B – S105E
C – N75W
D – S15W

10. 5. The strike of plane represented by this pole is:
B – S105E
C – N75W
D – S15W

11. 6. Using azimuth right-arm-rule the strike of plane is:
B – 105
C – 265
D – 115

12. 6. Using azimuth right-arm-rule the strike of plane is:
B – 105
C – 265
D – 115

13. A
7. To which great circle trace does the pole correspond? A B C D

14. B
7. To which great circle trace does the pole correspond? A B C D

15. C
7. To which great circle trace does the pole correspond? A B C D

16. D
7. To which great circle trace does the pole correspond? A B C D

17. A B
7. To which great circle trace does the pole correspond? A B C D C D

18. C
7. To which great circle trace does the pole correspond? A B C D

19. Assuming ideal Mohr-Coulomb failure and Andersonian faulting …
Predict the potential fault type if s1 is vertical:
A – reverse
B – normal
C – strike-slip

20. Assuming ideal Mohr-Coulomb failure and Andersonian faulting …
Predict the potential fault type if s1 is vertical:
A – reverse
B – normal
C – strike-slip

21. Assuming ideal Mohr-Coulomb failure and Andersonian faulting …
Predict the dip of this fault:

22. 60° Assuming ideal Mohr-Coulomb failure and Andersonian faulting …
Predict the dip of this fault:
60°

23. Assuming ideal Mohr-Coulomb failure and Andersonian faulting …
What is the plunge of s3 if s1 is vertical?

24. Assuming ideal Mohr-Coulomb failure and Andersonian faulting …
What is the plunge of s3 if s1 is vertical?

25. Assuming ideal Mohr-Coulomb failure and Andersonian faulting …
What is the plunge of s2 if s1 is vertical?

26. Assuming ideal Mohr-Coulomb failure and Andersonian faulting …
What is the plunge of s2 if s1 is vertical?

27. E – in this case, C and D are equivalent
Assuming ideal Mohr-Coulomb failure and Andersonian faulting …
If the dashed line is the s1-s3 plane, what is trend of s2?
A – N30E
B – S30W
C – S60E
D – N60W
E – in this case, C and D are equivalent
F – A and B

28. E – in this case, C and D are equivalent
Assuming ideal Mohr-Coulomb failure and Andersonian faulting …
If the dashed line is the s1-s3 plane, what is trend of s2?
A – N30E
B – S30W
C – S60E
D – N60W
E – in this case, C and D are equivalent
F – A and B

29. A – N30E B – S30W C – S60E D – N60W E – C and D F – A and B
Assuming ideal Mohr-Coulomb failure and Andersonian faulting …
If the dashed line is the s1-s3 plane, what is trend of s3?
A – N30E
B – S30W
C – S60E
D – N60W
E – C and D
F – A and B

30. A – N30E B – S30W C – S60E D – N60W E – C and D F – A and B
Assuming ideal Mohr-Coulomb failure and Andersonian faulting …
If the dashed line is the s1-s3 plane, what is trend of s3?
A – N30E
B – S30W
C – S60E
D – N60W
E – C and D
F – A and B

31. Assuming ideal Mohr-Coulomb failure and Andersonian faulting …
Given these stress orientations, what is the strike of a potential fault?
A – N30E
B – S30W
C – S60E
D – N60W

32. Assuming ideal Mohr-Coulomb failure and Andersonian faulting …
Given these stress orientations, what is the strike of a potential fault?
A – N30E
B – S30W
C – S60E
D – N60W
(remember – by convention strike is given in northern quadrants – S60E is equivalent otherwise)

33. A Assuming ideal Mohr-Coulomb failure and Andersonian faulting …
Which great circle traces are possible representations of potential faults? A

34. B Assuming ideal Mohr-Coulomb failure and Andersonian faulting …
Which great circle traces are possible representations of potential faults? B

35. C Assuming ideal Mohr-Coulomb failure and Andersonian faulting …
Which great circle traces are possible representations of potential faults? C

36. A B
Assuming ideal Mohr-Coulomb failure and Andersonian faulting …
Which great circle traces are possible representations of potential faults? C A B C

37. Assuming ideal Mohr-Coulomb failure and Andersonian faulting …
Which great circle traces are possible representations of potential faults? B
B: dip = 60°

38. Assuming ideal Mohr-Coulomb failure and Andersonian faulting …
What is the plunge of potential slickenlines?

39. Assuming ideal Mohr-Coulomb failure and Andersonian faulting …
What is the plunge of potential slickenlines?
Directly down-dip = 60°

40. A – N30E B – S30W C – S60E D – N60W E – A and B F – C and D
Assuming ideal Mohr-Coulomb failure and Andersonian faulting …
What is the trend of potential slickenlines?
A – N30E
B – S30W
C – S60E
D – N60W
E – A and B
F – C and D

41. A – N30E B – S30W C – S60E D – N60W E – A and B F – C and D
Assuming ideal Mohr-Coulomb failure and Andersonian faulting …
030 N30E
What is the trend of potential slickenlines?
A – N30E
B – S30W
C – S60E
D – N60W
E – A and B
F – C and D
210 S30W