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100
the type of rocks that are volcanoes are made of
What is igneous
100
the three types of volcanoes in terms of activity
What are active, extinct, and dormant
100
Magma that reaches the earth's surface
What is lava
100
the most common type of volcano
What is stratovolcano
100
a depositional mountain built up by molten rock that has risen to the earth's surface through a vent
What is a volcano
200
a spring that periodically ejects hot water and steam
What is a geyser
200
a mudslide caused by a volcano
What is a lahar
200
young earth creationists believe that most volcanoes formed at this time
What is during or shortly after the Flood
200
The name for the hole that forms when magma forces its way to the surface and breaks through
What is a vent
200
a depression found at the top of most volcanic cones
What is a crater
300
tiny, angular, glassy fragments
What is ash
300
a vent in the ground through which hot gases escape
What is a fumarole
300
the internal energy of the earth that is sometimes harnessed for man's use
What is geothermal energy
300
volcano that emits mostly cinders, ashes, and bombs
What is a cinder cone
300
An enlarged depression caused by an explosion or the collapse of a volcanic cone
What is a caldera
400
this term defines the way the temperature within the earth increases continuously with its depth
What is geothermal gradient
400
streamlined mass of ejected lava that solidified in flight
What is a bomb
400
a pyroclastic flow that contains both gases and hot solid particles
What is a glowing avalanche
400
volcano that emits mostly lava in quiet eruptions
What is a shield volcano
400
this type of organism is the base of the food chain around black smokers deep in the ocean
What is bacteria
500
another name for the Circus-Pacific volcano belt
What is "Ring of Fire"
500
Volcano that emits lava and solid debris in alternately quiet and explosive eruptions
What is a stratovolcano
500
Name the two types of plutons discussed in the chapter
What are batholiths and laccoliths
500
thick layers of igneous rock covering large portions of the earth
What are Flood basalts
500
geyser water is heated by this
What is magma