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GEOL 1033,
General Oceanography
Q7
REVISED Study Question Set 7 (Lesson 8)
Question and Answer Sheet:
Name: __________________________
ID #: ____________________
1. What rock type best characterizes continental crust? ________________________
2. What rock type best characterizes oceanic crust?
________________________
3. These two types of rocks (referring to the two questions above) belong to
what category in the genetic classification of rocks?
________________________
4-6. List the three categories in the genetic classification of rocks:
4. ____________________ 5. ____________________ 6. _____________________
7. How thick is oceanic crust?
________________________
8. The top of oceanic crust is veneered by what types of geological materials?
Sediments and ____________________________ ___________________ (2 words)
9. The changing and recycling of rock materials in and on Earth is referred to
as the
_____________________ _________________ (2 words)
10. In a cross section of Earth, what subdivision lies directly beneath the
crust?
________________________
11. Referring to the question above, what is the name of the boundary between
these two subdivisions?
________________________
12. How many subdivisions of Earth's core are there? 1, 2, 3, 4, or 5?
13. Which subdivision of the Earth's core is molten?
______
________________________
14. Which subdivision, zone, or layer of Earth, as visualized in cross section,
is composed mostly of iron and some nickel?
________________________
15-16. The lithosphere is composed of what two zones?
15. __________________
16. __________________
17. How thick is a lithospheric plate?
______________
________________________
18. What Earth subdivision is the primary source of magmas & lavas? ____________
19. What is believed by most geologists to be the driving mechanism for plate
tectonics?
______________________________________________________________
20-22. The 3 agents of erosion are _____________, ______________, & ____________
23. The finest size of sedimentary particle is called
________________________
24. Cementation of sediments is a process by which ___________________ rocks are
formed.
25. Which of the 3 major rock categories is least represented in oceanic crust?
________________________