Volcano Anatomy
Volcano Categories
Volcanic Eruptions
Volcano Misc.
Earthquakes
100
A mountain formed of lava and/or pyroclastic material
What is a volcano
100
The three types of volcanoes
What is shield, cinder-cone, composite
100
Molten rock under the surface
What is magma
100
Magma is intruded between sedimentary layers close to the surface (lens shaped)
What is laccolith
100
Stable soil turns into a liquid that is not able to support building or other structures
What is Liquefaction
200
Opening in the crust
What is the vent
200
Large, nearly symmetrical structure Layers of lava and pyroclastic deposits
What is a composite volcano
200
Molten rock above the surface
What is lava
200
Fragments ejected during eruptions From very fine to several tons
What is pyroclastic flow
200
They push (compress) and pull (expand) rocks in the direction the wave travels
What is p-waves
300
Links the vent to the magma chamber
What is the magma tube
300
Steep-sided slopes Small in size Built by pyroclastic materials ejected from a single vent
What is a cinder cone volcano
300
The three factors effecting volcanic eruptions
What is Magma Composition, Magma Temperature, Amount of Dissolved Gases
300
Most abundant gas in a volcanic eruption
What is water vapor
300
When the strength of the rock exceeded, it suddenly breaks, causing the vibrations of an earthquake
What is the elastic rebound hypothesis
400
Where the molten rock waits
What is the magma chamber
400
Another name for composite volcano
What is stratovolcano
400
Substance’s resistance to flow
What is viscosity
400
lava flow that has a surface of rough, jagged blocks with dangerously sharp edges and spiny projections
What is Aa lava flow
400
The three parts of an earthquake are these.
What is focus, epicenter, and fault
500
Steep-walled depression at the top
What is a crater
500
The Hawaiian islands are an example of this type of volcano
What is shield volcano
500
lava flow resembles the twisted braids in ropes
What is pahoehoe
500
Mudflow that occurs when volcanic debris becomes saturated with water and rapidly moves down steep volcanic slopes
What is a lahar
500
Scale of how much damage occurs (specifically)
What is Mercalli Intensity Scale
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