Quiz: Igneous & Metamorphic Rocks 23-24
By M Lewis
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Last updated 20 days ago
24 Questions
Required
1 point1
Question 1
1.
Igneous Rocks are only formed underground.
Igneous Rocks are only formed underground.
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1 point1
Question 2
2.
Granite is an example of what kind of rock?
Granite is an example of what kind of rock?
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1 point1
Question 3
3.
Rhyolite is an example of what type of rock?
Rhyolite is an example of what type of rock?
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1 point1
Question 4
4.
Obsidian is an example of what kind of rock?
Obsidian is an example of what kind of rock?
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3 points3
Question 5
5.
How can you determine if an igneous rock is intrusive or extrusive? Use complete sentences for full credit.
How can you determine if an igneous rock is intrusive or extrusive?
Use complete sentences for full credit.
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1 point1
Question 6
6.
Magma forms when solid rock in the crust and upper mantle ____.
Magma forms when solid rock in the crust and upper mantle ____.
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5 points5
Question 7
7.
Imagine you found this rock while hiking. What could you infer about how it was created and what geologic features would you expect to find near by?
Use complete sentences for full credit.
Imagine you found this rock while hiking. What could you infer about how it was created and what geologic features would you expect to find near by?
Use complete sentences for full credit.
Required
0 points0
Question 8
8.
How can you determine if an igneous rock has had an intrusive or extrusive origin?
How can you determine if an igneous rock has had an intrusive or extrusive origin?
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3 points3
Question 9
9.
What is meant by a vesicular texture and how does it form in igneous rocks?
What is meant by a vesicular texture and how does it form in igneous rocks?
3 points
3
Question 10
10.
Describe the environment of formation for granite and basalt. Compare and contrast the two rock types.
Describe the environment of formation for granite and basalt. Compare and contrast the two rock types.
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1 point1
Question 11
11.
Which characteristic provides the best evidence that obsidian rock formed in an extrusive environment?
Which characteristic provides the best evidence that obsidian rock formed in an extrusive environment?
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1 point1
Question 12
12.
Which coarse grained intrusive igneous rock could be composed of approximately 60% pyroxene, 25% plagioclase feldspar, 10% olivine, and 5% amphibole?
Which coarse grained intrusive igneous rock could be composed of approximately 60% pyroxene, 25% plagioclase feldspar, 10% olivine, and 5% amphibole?
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Question 13
13.
Wavy bands of light and dark minerals visible in gneiss bedrock probably formed from the _______________.
Wavy bands of light and dark minerals visible in gneiss bedrock probably formed from the _______________.
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Question 14
14.
Which rock is foliated, shows mineral alignment but not banding, and contains medium-sized grains of quartz and pyroxene?
Which rock is foliated, shows mineral alignment but not banding, and contains medium-sized grains of quartz and pyroxene?
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Question 15
15.
Which rock can form in a contact metamorphic zone?
Which rock can form in a contact metamorphic zone?
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Question 16
16.
Which rock would most likely be produced by the metamorphism of a grey limestone?
Which rock would most likely be produced by the metamorphism of a grey limestone?
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Question 17
17.
The crystals of many metamorphic rocks are aligned in bands as a result of __________.
The crystals of many metamorphic rocks are aligned in bands as a result of __________.
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Question 18
18.
Slate is formed by the
Slate is formed by the
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Question 19
19.
Which metamorphic rock would react with hydrochloric acid?
Which metamorphic rock would react with hydrochloric acid?
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Question 20
20.
Determine the name of a metamorphic rock that is foliated, HAD some mica which
has changed into feldspar, and has medium to coarse grain size
Determine the name of a metamorphic rock that is foliated, HAD some mica which
has changed into feldspar, and has medium to coarse grain size
Required
0 points0
Question 21
21.
Describe the difference between regional metamorphism and contact metamorphism.
Describe the difference between regional metamorphism and contact metamorphism.
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Question 22
22.
Which type of metamorphic rock is most likely to form at A?
Which type of metamorphic rock is most likely to form at A?
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2 points2
Question 23
23.
Identify the foliated metamorphic rocks shown below
Identify the foliated metamorphic rocks shown below
| arrow_right_alt | Slate | |
| arrow_right_alt | Phyllite | |
| arrow_right_alt | Schist | |
| arrow_right_alt | Gneiss |
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2 points2
Question 24
24.
List the 4 rocks identified above in order from lowest grade (TOP) to highest grade (BOTTOM) based on the amount of metamorphism.
List the 4 rocks identified above in order from lowest grade (TOP) to highest grade (BOTTOM) based on the amount of metamorphism.
- Schist
- Gneiss
- Phyllite
- Slate