Download Test Ch. 10 Multiple Choice: Identify the letter of the choice that best

Test Ch. 10
Multiple Choice: Identify the letter of the choice that best completes the statement or answers the
question.
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1. Metamorphism is best defined as the
a. compaction and cementation of rock fragments.
b. precipitation of minerals dissolved in water.
c. solidification of magma by cooling.
d. changing of a rock by heat and pressure.
2. Two processes responsible for changing sediments into sedimentary rock are compaction
and
a. foliation.
b. cementation.
c. intrusion.
d. stratification.
3. Which of the following types of rock is produced by magma that cools deep below the
earth’s crust?
a. extrusive igneous
b. intrusive igneous
c. foliated metamorphic
d. chemical sedimentary
4. Which of the following is an igneous rock?
a. limestone
b. gypsum
c. gneiss
d. basalt
5. Which of the following describes the process by which sedimentary rock becomes
metamorphic rock?
a. weathering
b. erosion
c. intense heat and pressure
d. cooling and solidifying
6. The size and arrangement of crystalline grains in igneous rock is called
a. density.
b. texture.
c. hardness.
d. luster.
7. Which of the following is an indication of crystal size in an igneous rock?
a. hardness
b. texture
c. angularity
d. luster
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8. An igneous rock with a mixture of large and small grains is said to have
a. porphyritic texture.
b. an intrusion.
c. an extrusion.
d. a breccia.
9. Which of the following is a fine-grained member of the felsic family?
a. andesite
b. diorite
c. rhyolite
d. marble
10. Gabbro is chemically most similar to which of the following rocks?
a. basalt
b. obsidian
c. granite
d. diorite
11. Which of the following would most likely form from a mafic magma that cooled slowly
underground?
a. basalt
b. gabbro
c. obsidian
d. pumice
12. Which of the following rocks is a member of the intermediate family?
a. andesite
b. gabbro
c. obsidian
d. granite
13. Gabbro is an example of a
a. felsic, fine-grained rock.
b. felsic, coarse-grained rock.
c. mafic, fine-grained rock.
d. mafic, coarse-grained rock.
14. Felsic rocks are high in
a. quartz.
b. silica.
c. biotite.
d. calcite.
15. Which of the following form the core of many major mountain ranges?
a. conglomerates
b. concretions
c. batholiths
d. extrusions
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16. In the diagram above, the feature labeled 1 is an example of a
a. lava plateau.
b. laccolith.
c. geode.
d. batholith.
17. In the diagram above, the feature labeled 2 is an example of a
a. sill.
b. dike.
c. plug.
d. neck.
18. The structure labeled X in the diagram above is a
a. sill.
b. dike.
c. stock.
d. batholith.
19. The structure labeled Y in the diagram above is a
a. sill.
b. dike.
c. laccolith.
d. batholith.
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20. Magma that cools deep below the earth’s crust forms what type of rock?
a. clastic
b. intrusive
c. stratified
d. extrusive
21. The structure formed when magma flows out through cracks in the earth’s surface and
spreads out over a large area is called a
a. volcanic neck.
b. sill.
c. laccolith.
d. lava plateau.
22. To which of the following groups does breccia belong?
a. foliated metamorphic
b. nonfoliated metamorphic
c. clastic sedimentary
d. chemical sedimentary
23. A rock composed of cemented, rounded pebbles is a
a. batholith.
b. shale.
c. breccia.
d. conglomerate.
24. The layering of sedimentary rock with coarse grains at the bottom and fine grains at the
top is
a. foliation.
b. concretion.
c. graded bedding.
d. cross-bedding.
25. Ripple marks in sandstone may form by the action of
a. wind.
b. magma.
c. heat.
d. intrusion.
26. Regional metamorphism occurs as a result of
a. tectonic activity.
b. volcanic eruptions.
c. earthquakes.
d. sedimentation.
27. Which of the following is an organic sedimentary rock?
a. basalt
b. coal
c. conglomerate
d. sandstone
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28. Ripple marks in rocks are formed by
a. moving wind or water.
b. drying and shrinking.
c. heating and cooling.
d. contact with magma.
29. Where does most metamorphic rock form?
a. deep below the earth’s surface
b. within volcanoes
c. on the earth’s surface
d. on lake beds
30. Which of the following is classified as a metamorphic rock?
a. basalt
b. diorite
c. limestone
d. schist
Completion: Complete each sentence or statement.
31. Rocks are classified into three groups based on how the rocks are ____________________.
32. In the diagram above, the arrow labeled B represents heat and ____________________.
33. The type of rock represented by rectangle A in the diagram is ____________________.
34. Igneous rocks that are dark colored, low in silica, and high in iron and magnesium are
called ____________________.
35. Remains or traces of ancient plants and animals that are preserved in rock are called
____________________.
36. When sediment deposition occurs in curved slopes, the inclined layers are said to be
____________________.
37. Quartzite is produced by the metamorphism of ____________________.
38. Rocks are changed from one type to another in a series of changes called the rock
____________________.
39. Nodules that form when minerals precipitated from solutions build up around existing rock
particles are called ____________________.
40. Slate is formed when great pressure acts on the sedimentary rock ____________________.
Essay: Write in complete sentences to answer the folowing question.
41. Explain how igneous rock can change into sedimentary rock.
Test Ch. 10
Answer Section
MULTIPLE CHOICE
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COMPLETION
31. ANS: formed
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32. ANS: pressure
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33. ANS: igneous
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34. ANS: mafic
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35. ANS: fossils
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36. ANS: cross-bedded
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37. ANS: sandstone
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38. ANS: cycle
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39. ANS: concretions
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40. ANS: shale
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ESSAY
41. ANS:
As igneous rock is worn away and broken down by agents such as water and wind, rock
fragments form. These fragments can then be compacted and cemented to form
sedimentary rock.
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1