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Parts of a Volcano
Volcanic Landforms
Vocabulary
The Creation of Volcanoes
Types of Volcanoes
100

Particles produced in eruptions that help build the sides/height of a volcano

pyroclastic materials

100

Define what a laccolith is

Mass of igneous rock, typically lens-shaped, that has been intruded between rock strata causing uplift in the shape of a dome

100
What is Magma?
Molten rock beneath the earth's surface.
100
Where do most volcanoes occur?
Most volcanoes, like most earthquakes, occur along the boundaries between shifting tectonic plates.
100

Do volcanoes release smoke? Do volcanoes release glass?

no, yes

200

What is the pipe/conduit of a volcano?

tube from magma chamber to vent

200

Pluton that forms when magma moves into fractures that cut across rock layers

Dike

200

Result of many individual plutons that slowly clump together and form a gigantic rock

batholith

200

What is a cinder cone volcano?

This type of volcanic landform is made up of small rock particles, or cinders. It is characterized by a small cone with steep sides.

200

What type of rock does magma form

igneous

300

what is a vent? where is it located?

Openings through which volcanic materials erupt are called vents. They are located near the peak of the mountain.

300

forms when magma flows between parallel layers of sedimentary rock

sill

300
What is a hot spot?
A region of volcanic activity in the middle of a tectonic plate.
300
What is a shield volcano?
This type of volcano is made up of layers of lava rocks. it's not as steep as cinder cone volcano and is created slowly that's why it has gentle and broad sides.
300
What is a composite volcano?
This type of volcanic landform is made up of layers of lava flows alternating with layers of ash, cinders, and rocks. it is a combination of cinder cone and shield volcanoes.
400
What are craters?
Craters are bowl-shaped depressions. Forceful explosions may blow out the tops of mountains to form craters.
400

What’s an intrusive igneous rock?

igneous rock formed below earth's surface

400

What is the word for the resistance of flowing in magma

Viscosity
400

long belt of volcanoes in circles in the Pacific Ocean

Ring of Fire

400

What are shield volcanoes?

Produced by accumulation of fluid lavas, domed shape have grown from ocean floor to produce islands

500

Area under the earths surface that holds the magma under the volcano

magma chamber

500

A batholith has how many kilometers of surface

100

500

The structures that result from the hardening of magma beneath the surface

pluton

500

What is the difference between lava and magma?

Magma is molten rock that is underground and lava for molten rock that breaks through the Earth's surface

500

What effects the the explosiveness of a volcanic eruption?

viscosity, magma composition, dissolved gases