Volcanic Landforms
The Rock Cycle
Volcanic Activity
Volcanoes and Plate Tectonics
Volcanology
100
A wide, gently sloping mountain made of layers of lava and formed by quiet eruptions. P. 104
What is a shield volcano?
100
Small, solid pieces of material that comes from rocks or organisms. p. 154
What is sediment?
100
A fountain of water and steam that builds up pressure underground and erupts at regular intervals. P. 99
What is a geyser?
100
The pocket beneath a volcano where magma collects. P. 94
What is a magma chamber?
100
A device that records ground movements caused by seismic waves as they move through Earth. P. 66
What is a seismograph?
200
A mass of rock formed when a large body of magma cooled inside the crust. P. 107
What is a batholith?
200
The process by which sediment settles out of the water or wind that is carrying it. P. 155
What is deposition?
200
Said of a volcano that does not show signs of erupting in the near future. P. 98
What is dormant?
200
The molten mixture of rock-forming substances, gases, and water from the mantle. P. 88
What is magma?
200
A device that monitors changes in the movement of the magma inside a volcano.
What is a gravity meter?
300
A steep, cone-shaped hill or mountain made of volcanic ash, cinders, and bombs piled up around a volcano's opening. P. 104
What is a cinder-cone volcano?
300
A type of rock that forms from the cooling of molten rock at or below the surface. P. 149
What is igneous rock?
300
A major belt of volcanoes that rims the Pacific Ocean. P. 89
What is the Ring of Fire?
300
A weak spot in the crust where magma has come to the surface. P. 88
What is a volcano?
300
Type of lava that forms when lava oozes into the ocean and cools on contact with the water.
What is pillow lava?
400
The large hole at the top pf a volcano formed when the roof of a volcano's magma chamber collapses. P. 104
What is a caldera?
400
Term used to describe metamorphic rocks whose grains are arranged in parallel layers or bands. P. 163
What is foliated?
400
An area where magma from deep within the mantle melts the crust above it. P. 91
What is a hot spot?
400
Liquid magma that reaches the surface; also the rock formed when liquid lava hardens. P. 88
What is lava?
400
A device that is used to monitor the type and level of gases being released into the air near a volcano.
What is a gas sensor?
500
A deposit of hardened magma in a volcano's pipe. P. 106
What is a volcanic neck?
500
The process by which dissolved minerals crystallize and glue particles of sediment together into one mass. P. 155
What is cementation?
500
A string of islands formed by the volcanoes along a deep ocean trench. P. 90
What is an island arc?
500
Energy from water or steam that has been heated by magma. P. 99
What is geothermal energy?
500
A term used to describe how easily a liquid flows.
What is viscosity?
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