1. Question and Answer Samples and Techniques
Chapter 3 Review: Rocks
Question and Answer
Samples and Techniques

2. The Three major types of rocks are Igneous, Sedimentary and Extrusive.
Metamorphic

3. This process forms what type of rock?
Cementation often occurs directly after Earth materials are _____________ ?
Compacted
This process forms what type of rock?

4. erosion deposition melting compaction
Which of the following would NOT be a major process in the formation of sedimentary rock.
erosion
deposition
melting
compaction

5. Ripple marks likely indicate that the rock formed……..
Near or in water

6. Metamorphic rocks that have a banded appearance due to the alignment of minerals are called foliated rocks.

7. Which rock is made up of the smallest sediments?
Shale
Breccia
Sandstone
Conglomerate

8. A fine grained igneous rock forms…..
Deep within the Earth
From magma
As the result of slow cooling
As the result of quick cooling

9. The formation of igneous rock is powered by?
Earth’s Internal Heat

10. The rock went through at least two different cooling periods.
If a rock has a porhyrtic texture, what can we conclude about the rock?
The rock went through at least two different cooling periods.
Minerals that crystallize from magma do not form at the same rate or same time. These rocks usually have larger crystals surrounded by much smaller crystals.

11. Foliated = bands or layers
How could you easily distinguish a black and white gneiss from a similar colored granite?
The gneiss is foliated
Foliated = bands or layers

12. Marble is an example of a
foliated metamorphic rock
nonfoliated sedimentary rock
nonfoliated metamorphic rock
intrusive igneous rock

13. Rhyolite Granite Limestone Schist
Which of the following is a fine-grained, light-colored extrusive igneous rock?
Rhyolite
Granite
Limestone
Schist

14. Igneous rocks are classified by
composition and age.
composition and texture.
texture and size.
texture and presence of fossils.

15. What are the main agents of metamorphism?
compaction, cementation, and heat
heat, pressure, and hydrothermal solutions
heat, pressure, and erosion
heat, weathering, and erosion

16. Which of the following is NOT an example of an igneous rock?
granite
basalt
rhyolite
sandstone

17. A(n) __________is any solid mass of mineral or mineral-like matter that occurs naturally as part of Earth.
Rock

18. Most rocks, such as granite, occur as a solid mixture of _____________?
Minerals

19. This produces low-grade metamorphism?
Contact metamorphism

20. This occurs during mountain building?
Regional Metamorphism

21. Much of the upper mantle is thought to be made of granite.
Ultramafic