Test Bank For Physical Geology 15Th Edition By Charles (Carlos) Plummer

Test Bank For Physical Geology 15Th Edition By Charles (Carlos) Plummer

Chapter 03

Igneous Rocks, Intrusive Activity, and the Origin of Igneous Rocks

  True / False Questions

1. Rhyolite is considerably more common than granite.FALSE

Bloom’s Level: 2. UnderstandTopic: Igneous Environments

2. Diorite and andesite are composed of similar amounts of feldspars and ferromagnesian minerals.TRUE

Bloom’s Level: 1. RememberTopic: Igneous Environments

3. Lava is magma on the Earth’s surface.TRUE

Bloom’s Level: 1. RememberTopic: Igneous Environments

4. Extrusive igneous rocks are typically fine grained because they crystallized slowly, deep below the Earth’s surface.FALSE

Bloom’s Level: 2. UnderstandTopic: Igneous Environments

5. A dike is a discordant intrusive igneous structure.TRUE

Bloom’s Level: 1. RememberTopic: Igneous Environments

6. The geothermal gradient is the rate at which pressure increases with increasing depth beneath the surface.FALSE

Bloom’s Level: 1. RememberTopic: Igneous Environments

7. Mafic igneous rocks are silica-poor.TRUE

Bloom’s Level: 2. UnderstandTopic: Igneous Environments

8. A mineral’s melting point generally increases with increasing pressure.TRUE

Bloom’s Level: 2. UnderstandTopic: Igneous Environments

9. Although batholiths may contain mafic and intermediate rocks, they almost never composed of granite.FALSE

Bloom’s Level: 2. UnderstandTopic: Igneous Environments

10. The sequence in which minerals crystallize in a cooling igneous melt is called Bowen’s Reaction Series.TRUE

Bloom’s Level: 1. RememberTopic: Igneous Environments