6.1 Vocab
6.1 & 6.2 Vocab
6.2 Vocab
6.3 Vocab
6.3 Vocab
100
A weak spot in the crust where molten material, or magma, comes to the surface.
What is a volcano?
100
An area where material from deep within the mantle rises and then melts, forming magma.
What is a Hot Spot?
100
A bowl-shaped area that forms around a volcano's central opening.
What is a Crater?
100
A fountain of water and steam that erupts from the ground.
What is a geyser?
100
The hardened magma in a volcano's pipe.
What is a Volcanic Neck?
200
A molten mixture of rock-forming substances, gases, and water from the mantle.
What is magma?
200
The pocket beneath a volcano where magma collects.
What is a Magma Chamber?
200
A material found in magma that is formed from the elements oxygen and silicon.
What is Silica?
200
A wide, gently sloping mountain made of layers of lava; formed by quiet eruptions.
What is a Shield Volcano?
200
A slab of volcanic rock formed when magma squeezes between layers of rock.
What is a sill?
300
This is what magma is called when it reaches the surface.
What is lava?
300
A long tube through which magma moves from the magma chamber to Earth's surface.
What is a Pipe?
300
An explosive volcanic eruption of ash, cinders, bombs, and gases.
What is a Pyroclastic Flow?
300
A steep, cone-shaped hill or small mountain made of volcanic ash, cinders, and bombs.
What is is a Cinder Cone?
300
A slab of volcanic rock formed when magma forces itself across rock layers.
What is a Dike?
400
This was formed by the many volcanoes that rim the Pacific Ocean.
What is the Ring of Fire?
400
An opening through which magma leaves a volcano.
What is a Vent?
400
A volcano that is not currently active, but that may become active in the future.
What is Dormant?
400
A tall, cone-shaped mountain in which layers of lava and ash alternate.
What is a composite volcano?
400
An igneous rock layer formed by the volcanoes along a deep-ocean trench.
What is an Intrusion?
500
A string of islands formed by the volcanoes along a deep-ocean trench.
What is an Island Arc?
500
The area covered by lava from a volcano's vent.
What is a Lava Flow?
500
A volcano that is no longer active and is unlikely to erupt again.
What is Extinct.
500
The large hole at the top of a volcano formed when the roof of a magma chamber collapses.
What is a Caldera?
500
A mass of rock formed when a large body of magma cools inside the crust.
What is a batholith?
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