Using ESRT 6 "Scheme for Igneous Rock Identification" table to complete the data chart and identify rock sample 1.
Rock Sample 2
Question 2
2.
Using ESRT 6 "Scheme for Igneous Rock Identification" table to complete the data chart and identify rock sample 2.
Rock Sample 3
Question 3
3.
Using ESRT 6 "Scheme for Igneous Rock Identification" table to complete the data chart and identify rock sample 3.
Question 4
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Question 5
5.
Question 6
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Question 7
7.
How can you determine if an igneous rock is intrusive or extrusive?
Use complete sentences for full credit.
Question 8
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Question 9
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Question 10
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Question 11
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Question 12
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Question 13
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Question 14
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Question 15
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Question 16
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Question 17
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2
1
1
1
2
1
1
1
Question 26
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Question 27
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Question 28
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Question 29
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5
Question 30
30.
Imagine you found this rock while hiking. What could you infer about how it was created and what geologic features are near by?
Use complete sentences for full credit.
The volcanic landforms at divergent ocean plate boundaries are ____.
oceanic ridges
continental volcanic arcs
mid-ocean trenches
Most of the active volcanoes on Earth are located in a belt known as the ____.
circum-Atlantic belt
Ring of Fire
East African Rift Valley
If the debris within a landslide mixes with enough water it can trigger which of the following volcanic hazards?
a tsunami
a tidal wave
a lahar
an earthquake
Most shield volcanoes have grown from the ocean floor and are ....
islands with quiet eruptions.
islands with explosive eruptions.
layers of granite and ash.
composed primarily of silicon and oxygen.
Which of the following factors helps determine whether a volcanic eruption will be violent or relatively quiet?
temperature and composition of the magma
type of plate boundary
amount of iron and magnesium
the temperatue alone determines it's viscosity
Magma forms when solid rock in the crust and upper mantle ____.
melts
crystallizes
cools
dissolves
The most violent volcanic eruptions are associated with what type of volcano?
cinder cones
shield volcanoes
composite
caldera
Which of the following is true about cinder cones?
They have very steep sides.
They are usually less than 300 meters high.
They often occur near other volcanoes
all of the above
Which of the following plays a major part in determining the form of a volcano?
elevation above sea level
local soil type
magma composition
location to the equator
What type of volcano is illustrated in Figure 10-1? Hint: it is large, steep, has symmetrical sides, and has alternate layers of lava and pyroclastic material?
volcanic neck
shield volcano
composite cone
What feature is labeled A in Figure 10-1?
magma chamber
crater
volcanic neck
vent
The broad, slightly dome-shaped volcanoes of Hawaii are ____.
composite cone volcanoes
shield volcanoes
pyroclastic volcanoes
cinder cone
The particles produced in volcanic eruptions are called ____.
laccoliths
calderas
pyroclastic material
granitic
Question 18
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Question 19
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Question 20
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Question 21
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Question 22
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Question 23
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Question 24
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Question 25
25.
High viscosity liquids...
move quickly and trap gases
move quickly and gases escape easily
move slowly and trap gases
move slowly and gases escape easily
Where are you likely to find an explosive volcano?
In Iceland
In the middle of the United States
In the middle of the Pacific Ocean
In the Himalayas
Where are you likely to find an non-explosive volcano?
In the middle of the Pacific Ocean
In the middle of the United States
In the western mountain range of South America
In the Himalayas
What determines the viscosity of the lava?
pH
silica content
oxygen content
magnetic properties
This is a sheild volcano. Where might you find this type of volcano (check all that apply)
subduction zone
collision zone
oceanic hotspot
continental hotspot
divergent plate boundary
What kind of lava would produce this type of volcano?
basaltic
granitic
This lava would have...
high viscosity
low viscosity
This volcano would be...
explosive
non-explosive
This is a stratocone volcano. Where might you find this type of volcano (check all that apply)
subduction zone
collision zone
oceanic hotspot
continental hotspot
divergent plate boundary
What kind of lava would produce this type of volcano?
