Geology question For questions 17 through 25 please refer to the geologic map of

Question

Geology question

For questions 17 through 25 please refer to the geologic map of Composite, California.
Questions 17 through 25: Multiple Choice: Mark the best answer for each question.
17. The Trilobite shale dips in what general compass direction where it is cut by the diabase dike?
a. Northwest
b. Southwest
c. Northeast
d. Southeast

18. What type of fold is found in the western area of the map?
a. a plunging anticline
b. a plunging syncline
c. a nonplunging syncline
d. a nonplunging anticline

19. In what general compass direction does fault C dip?
a. Northwest
b. Southwest
c. Northeast
d. Southeast

20. What type of fault is fault C?
a. a left-lateral strike-slip fault
b. a right-lateral strike-slip fault
c. a normal fault
d. a reverse (thrust) fault

21. Which statement best descibes the activity of fault C?
a. Fault C is inactive.
b. Fault C is an active fault.
c. It is imposible to tell if Fault C is active.

22. How many periods of faulting are present in the area of Composite, California.
a. 4.
b. 3.
c. 2.
d. 1.

23. What type of fault is fault B? Hint:The dip of the fault is always towards the ?hanging
wall.? Also ask yourselves: ?where do older rocks come from.?
a. a left-lateral strike-slip fault
b. a right-lateral strike-slip fault
c. a normal fault
d. a reverse (thrust) fault

24. Which rock unit is the oldest in the area of Composite, California.
a. Montery Formation
b. Quaternary Alluvium
c. Dark Star Quartzite
d. Saint Anne Sandstone

25. How many unconformities are seen on the map?
a. 6.
b. 5.
c. 4.
d. 3.
e. 2.

Explanation / Answer

answer 17 a

answer 18 c

answer 19 b

answer 20 a

answer 21 a

answer 22 b

answer 23 c

answer 24 b

answer 25 c

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