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Chapter 5 and 6 Review Flashcards | StudBud
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Chapter 5 and 6 Review
Chapter 5 and 6 Review
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Igneous, Sedimentary, and Metamorphic Rocks
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Questions
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Answers
1
Hot fluids migrating into and out of a rock during metamorphism can change the rock's what?
energy
fossil content
chemistry
grade
2
What are Igneous rocks that cool slowly beneath Earth's crust called?
Sedimentary
Always magnetic
Intrusive
Extrusive
3
What is the only way diamonds can form?
Under very low pressure
Under very high pressure
above ground
near radioactive elements
4
What factors affect a rock's melting point?
usefulness as a building material
value as a gem
pressure and water content
rarity
5
Porphyroblasts differ from the minerals surrounding them in terms of?
shape
size
color
axis of orientation
6
What does the metamorphism of limestone result in the formation of?
gneiss
marble
silver
quartzite
7
Rocks are formed when magma does what?
undergoes radioactive decay
crystallizes or cools
erodes
weathers
8
What happens when rocks come in contact with molten rocks?
precipitation
hydrothermal metamorphism
regional
contact metamorphism
9
What are Metamorphic rocks that lack mineral grains with long axes in one direction called?
quartzite-like
foliated
marble-like
nonfoliated
10
During the rock cycle, what are Igneous rocks formed from?
extrusive
sediments
cooling of magma
sedimentary
11
What type of sediment particles are similar in size?
dissolved
unsorted
clastic
sorted
12
What are valuable ore deposits and gem crystals often associated with?
oceans
thin crustal areas
igneous intrusions
oil deposits
13
The mineralogy of rock being altered by very hot water is what kind of metamorphism?
contact
hydrothermal
local
regional
14
Where are minerals that crystallize at higher temperatures because of contact metamorph. found?
igneous intrusions
bodies of water
coal deposits
coral reefs
15
A rock could be labeled as Breccia that has
large, rounded rock fragments
clay
quartz and small rock fragments
large angular rock fragments
16
Rocks with the long axes of their minerals perpendicular to the pressure are described as?
foliated
quartzite-like
marble-like
nonfoliated
17
What do igneous rocks tend to be?
radioactive
full of gold
vulnerable to weathering
resistant to weathering
18
Extrusive rocks cool more rapidly than intrusive rocks and are generally more what?
coarsely grained
radioactive
magnetic
finely grained
19
Igneous rocks are strong because of their what?
color
temperature
interlocking grain textures
water content
20
What are metal-rich quartz veins formed at the end of?
volcanic eruptions
magma crystallization
radioactive decay
the cooling of Earth's crust
21
Ore deposits can contain gold and sometimes are found as a(n)
extrusion
molten rock
obsidian deposit
vein
22
What type of bedding has the heaviest and coarsest material on the bottom?
cementation
metamorphic
graded
clastic
23
What model illustrates the predictable patterns of mineral formation from cooling magma?
Bowen's reaction series
mineral composition
layered intrusion formation
crystal separation
24
During the rock cycle, how are Igneous rocks turned into sediments?
weathering and erosion
melting
intrusive
extrusive
25
What are pegmatites?
small volcanoes
magmas of differing densities
microscopic, interlocking crystal grains
veins of extremely large-grained minerals