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Volcanoes -- Earth Science BJU Flashcards | StudBud
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Volcanoes -- Earth Science BJU
Volcanoes -- Earth Science BJU
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Review of Chapter 8 -- Volcanoes -- using Bob Jones University textbook, Edition 5
Flashcards
50 cards
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Practice quiz
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Questions
50
Answers
1
Largest type of plutons are
stocks
batholiths
sills
laccoliths
2
Igneous features made by intrusive volcanism never appear above land
False
True
3
Nothing lives near the black smoker vents along deep-sea mid-ocean ridges
True
False
4
Batholiths and laccoliths are both types of
stocks
liths
dikes
plutons
5
A pyroclastic flow or glowing avalanche contains both gases and hot solid particles
True
False
6
Shield volcanoes have the highest VEI ratings
True
False
7
The Circum-Pacific volcano belt is sometimes called the Ring of Fire
False
True
8
A mudslide caused by a volcano is called a
pyroclastic flow
pahoehoe
laccolith
lahar
9
Sills and dikes are products of intrusive volcanism
False
True
10
A layer of loose pyroclastic materials and ash covering the ground is called
tephra
basalt
lahar
pahoehoe
11
Which of the following is NOT a term related to a volcano's activity
extinct
active
inert
dormant
12
Most of the world's active volcanoes are located in 1 of 2 volcano belts
True
False
13
Which of following DOES NOT belong with the other three?
tephra
travertine
cinders
ash
14
Cinder cones can form in just one short eruption
False
True
15
Geothermal power plants
can be built just about anywhere
are cheap to build
are very common, producing most power from non-fossil fuels
cost less to operate than most other kinds of power plants
16
Volcanoes are categorized by age, structure, and activity
True
False
17
Lava with the highest silica content usually
has the highest viscosity
has the lightest colore
flows at lowest temperatures
has a sulfur smell
18
A good example of a hydrothermal circuit is
mud pot
the formation of a pluton
the eruption of a geyser
intrusive volcanism
19
The term tephra is used to describe lava that has cooled and solidified on the ground
True
False
20
Geyser water is heated by magma
True
False
21
The VEI scale rates volcano activity only on the basis of volume of rock discharged eruption
True
False
22
Geologists believe the earth's interior temperature is highest in the
inner core
mantle
outer core
lithosphere
23
Looking at a volcano from a distance,its most recognizable feature is its
vent
cone
crater
caldera
24
Which of these is NOT how volcanoes are classified
explosivity
activity
structure
age
25
The VEI of a volcano's eruption is based on
amount of tephra produced
a descriptive estimate of the explosion
all of these
height of eruption cloud
26
All volcanic emissions are types of extrusive volcanism
False
True
27
Which of these belong together
tephra
travertine
cinder
ash
28
Pillow lava forms
around geysers
beneath glaciers
on steep slopes of mountains
underwater
29
Some batholiths are known only because their tops have been exposed by erosion
True
False
30
Once it reaches earth's surface, magma becomes ash
False
True
31
Volcanoes are made of ________________ rocks
metamorphic
sedimentary
igneous
viscous
32
A volcano is made of igneous rocks
False
True
33
Some volcanoes that were considered dormant have erupted with disastrous results
False
True
34
Most active volcanoes in the world exist
in the interiors of oceanic tectonic plates
in the interiors of continental tectonic plates
near convergent tectonic plate boundaries
near divergent tectonic plate boundaries
35
The term volcano originally came from the name for
an Alaskan mountain
none of the above
a type of rock
a Roman god
36
Largest volcanic eruptions in history of earth were probably similar to
Mt Vesuvius AD 79
eruption that formed the Yellowstone Caldera
Mt St Helens AD 1980
Mt Tambora AD 1815
37
Geothermal energy has become a major source of electricity in the United States
False
True
38
Which list is correct order from smallest to largest
cinder, bomb, ash
cinder, ash, bomb
ash, bomb, cinder
ash, cinder, bomb
39
What is another name for the Circum-Pacific belt
House of Pain
Volcano Alley
Kiss of Death
Ring of Fire
40
The eruption of Mt Tambora affected weather as far away as North America and Europe
False
True
41
Which of the volcano types takes up the most land area
stratovolcano
shield
composite
cinder cone
42
A rapid downhill movement of hot, solid, volcanic particles suspended in steam is a
pyroclastic flow
fumarole
lahar
geyser
43
Viscosity of lava depends mainly on its
gas content
carbon content
density
silica content
44
Mineral terraces are often associated with
hot springs
geysers
exposed plutons
flood basalts
45
Which of these statements describes a typical young earth geologists' view of volcanoes
Most formed as a result of the Fall in Genesis 3.
God created them on Day 3 when He created land
Most formed during or shortly after the Flood
They have been forming at a steady rate since Creation
46
The depression found at top of most volcanic cones is called a
caldera
Vent
cone
crater
47
A volcano begins to form when magma forces its way to surface and breaks through making hole or
vent
pahoehoe
caldera
fumarole
48
Which organisms make up the first step of the food chain around black smokers deep within ocean
Cinder slugs
Pahoehoe bugs
bacteria
Pompeii worms
49
Which volcano would young-earth geologist consider active based on Biblical view Earth history
all of these
active
extinct
dormant
50
The eruption of _________ was the largest volcanic event in recorded history
Krakatau
Mt Vesuvius
Mt St Helens
Mt Tambora
