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Questions and Answers
Which type of volcanic eruption is characterized by tall columns reaching up to 20km high with pyroclastic flow and ash fall tephra?
Which type of volcanic eruption is characterized by tall columns reaching up to 20km high with pyroclastic flow and ash fall tephra?
- Phreatic
- Plinian
- Vulcanian (correct)
- Strombolian
What is the most abundant volcanic gas released during eruptions?
What is the most abundant volcanic gas released during eruptions?
- Water Vapor (correct)
- Carbon Dioxide
- Sulfur Dioxide
- Methane
What type of magma has the highest explosiveness due to its high silica content and viscosity?
What type of magma has the highest explosiveness due to its high silica content and viscosity?
- Basaltic Magma
- Andesitic Magma
- Rhyolitic Magma (correct)
- None of the above
What is Lahar?
What is Lahar?
What is the process that promotes bubble formation in magma by lowering the confining pressure as it rises?
What is the process that promotes bubble formation in magma by lowering the confining pressure as it rises?
Which type of eruption is known for being short-lived and caused by hot rocks coming in contact with water?
Which type of eruption is known for being short-lived and caused by hot rocks coming in contact with water?
What is the main difference between magma and lava?
What is the main difference between magma and lava?
What is the function of a volcano's vent?
What is the function of a volcano's vent?
Which type of volcano is known for being built almost entirely of fluid lava flow and not steep?
Which type of volcano is known for being built almost entirely of fluid lava flow and not steep?
What is the primary characteristic of a composite/stratovolcano?
What is the primary characteristic of a composite/stratovolcano?
Where is the magma chamber located in a volcano?
Where is the magma chamber located in a volcano?
What causes the formation of cinder cone volcanoes?
What causes the formation of cinder cone volcanoes?
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