Podcast
Questions and Answers
What is the external bottom part of a volcano called?
What is the external bottom part of a volcano called?
- Flank
- Vent
- Crater
- Base (correct)
Where does magma flow through in a volcano?
Where does magma flow through in a volcano?
- Throat
- Conduit (correct)
- Caldera
- Flank vent
What is the huge circular depression with a diameter of thousand meters and depth of hundred meters called?
What is the huge circular depression with a diameter of thousand meters and depth of hundred meters called?
- Vent
- Caldera (correct)
- Base
- Crater
Where does the vent lie in a volcano?
Where does the vent lie in a volcano?
What is the sloping side of a volcano called?
What is the sloping side of a volcano called?
What is the term for a vent located on the side of a volcano?
What is the term for a vent located on the side of a volcano?
Where does magma accumulate underground in a volcano?
Where does magma accumulate underground in a volcano?
What can magma solidify into when inside the magma chamber?
What can magma solidify into when inside the magma chamber?
What geographic feature is the Pacific Ring of Fire known for?
What geographic feature is the Pacific Ring of Fire known for?
Which country is mentioned for its active volcanoes in the text?
Which country is mentioned for its active volcanoes in the text?
Flashcards
Volcano's base
Volcano's base
The base of a volcano is the external bottom part.
Volcano's conduit
Volcano's conduit
The conduit is the passage through which magma flows inside a volcano.
Volcano's caldera
Volcano's caldera
A caldera is a large, bowl-shaped depression formed when a volcano's summit collapses.
Volcano's crater
Volcano's crater
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Volcano's flank
Volcano's flank
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Volcano's flank vent
Volcano's flank vent
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Volcano's magma chamber
Volcano's magma chamber
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Granite formation
Granite formation
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Pacific Ring of Fire
Pacific Ring of Fire
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Philippines' volcanoes
Philippines' volcanoes
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Study Notes
External Structures of a Volcano
- The base of a volcano is the external bottom part that supports the entire body.
- The flank is the sloping side of a volcano.
- A vent is an opening where magma can flow out, usually located in the mouth of a volcano or circular depression called a crater.
- A caldera is a huge circular depression with a diameter of thousands of meters and a depth of hundreds of meters, formed by extreme volcanic eruptions.
Internal Structures of a Volcano
- The magma chamber is an underground open zone where magma accumulates.
- The conduit is the path where magma flows upward.
- The throat is the upper part of the conduit.
Formation of Volcanoes and Associated Features
- A flank vent is a smaller opening where magma may pass through, created on the side of a volcano.
- The accumulation of lava and ash layers can lead to the growth of a volcano and steepening of its slope.
- Extreme volcanic eruptions can create a caldera, which may later result in the formation of another volcano within the caldera.
Volcanic Regions
- The Pacific Ring of Fire is a horseshoe-shaped region where plate tectonics meet, separate, or slide next to each other.
- This region is prone to earthquakes and volcanic eruptions.
- Examples of active volcanoes in the Philippines include Mt. Pinatubo in Zambales and Mt. Mayon in Albay, Bicol.
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Description
Test your knowledge of the different parts and features of a volcano, from the base to the crater and beyond. Learn about vents, calderas, magma chambers, and more.
