Physical Geology 16th Edition by Charles (Carlos) Plummer – Test Bank
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Edition: 16th Edition
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Physical Geology 16th Edition by Charles (Carlos) Plummer – Test Bank
Physical Geology, 16e (Plummer)
Chapter 3 Igneous Rocks, the Origin and Evolution of Magma, and Intrusive Activity
1) Rhyolite is considerably more common than granite.
Answer: FALSE
Topic: Igneous Environments
Bloom’s: 2. Understand
Accessibility: Keyboard Navigation
Chapter: 03
2) Diorite and andesite are composed of similar amounts of feldspars and ferromagnesian minerals.
Answer: TRUE
Topic: Igneous Environments
Bloom’s: 1. Remember
Accessibility: Keyboard Navigation
Chapter: 03
3) Lava is magma on the Earth’s surface.
Answer: TRUE
Topic: Igneous Environments
Bloom’s: 1. Remember
Accessibility: Keyboard Navigation
Chapter: 03
4) Extrusive igneous rocks are typically fine grained because they crystallized slowly, deep below the Earth’s surface.
Answer: FALSE
Topic: Igneous Environments
Bloom’s: 2. Understand
Accessibility: Keyboard Navigation
Chapter: 03
5) A dike is a discordant intrusive igneous structure.
Answer: TRUE
Topic: Igneous Environments
Bloom’s: 1. Remember
Accessibility: Keyboard Navigation
Chapter: 03
6) The geothermal gradient is the rate at which pressure increases with increasing depth beneath the surface.
Answer: FALSE
Topic: Igneous Environments
Bloom’s: 1. Remember
Accessibility: Keyboard Navigation
Chapter: 03
7) Mafic igneous rocks are silica-poor.
Answer: TRUE
Topic: Igneous Environments
Bloom’s: 2. Understand
Accessibility: Keyboard Navigation
Chapter: 03
8) A mineral’s melting point generally increases with increasing pressure.
Answer: TRUE
Topic: Igneous Environments
Bloom’s: 2. Understand
Accessibility: Keyboard Navigation
Chapter: 03
9) Although batholiths may contain mafic and intermediate rocks, they are almost never composed of granite.
Answer: FALSE
Topic: Igneous Environments
Bloom’s: 2. Understand
Accessibility: Keyboard Navigation
Chapter: 03
10) The sequence in which minerals crystallize in a cooling igneous melt is called Bowen’s Reaction Series.
Answer: TRUE
Topic: Igneous Environments
Bloom’s: 1. Remember
Accessibility: Keyboard Navigation
Chapter: 03
11) The continuous branch in Bowen’s Reaction Series contains the ferromagnesian minerals.
Answer: FALSE
Topic: Igneous Environments
Bloom’s: 1. Remember
Accessibility: Keyboard Navigation
Chapter: 03
12) A pluton is an igneous structure that crystallized at very shallow depths.
Answer: FALSE
Topic: Igneous Environments
Bloom’s: 1. Remember
Accessibility: Keyboard Navigation
Chapter: 03
13) Partial melting of the lower continental crust produces a silicic magma that eventually solidifies into granite or rhyolite.
Answer: TRUE
Topic: Igneous Environments
Bloom’s: 2. Understand
Accessibility: Keyboard Navigation
Chapter: 03
14) An ultramafic rock is composed almost entirely of quartz.
Answer: FALSE
Topic: Igneous Environments
Bloom’s: 1. Remember
Accessibility: Keyboard Navigation
Chapter: 03
15) The term mafic comes from the terms magnesium and ferric.
Answer: TRUE
Topic: Igneous Environments
Bloom’s: 1. Remember
Accessibility: Keyboard Navigation
MAECENAS IACULIS
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