Podcast
Questions and Answers
What are ignimbrites?
What are ignimbrites?
- Low density flows of gases and pyroclastic materials
- Hot ash and rock falling from the sky
- Deposits for pumice flows (correct)
- Massive deposits of pumice and ash
What is the meaning of the word 'ignimbrite'?
What is the meaning of the word 'ignimbrite'?
- Pyroclastic surge
- Fire rain (correct)
- Ash cloud surge
- Volcanic eruption site
How do pyroclastic surges differ from ignimbrites?
How do pyroclastic surges differ from ignimbrites?
- Ignimbrites cause massive damage
- Ignimbrites reach the speed of some hurricanes
- Pyroclastic surges are deposits for pumice flows
- Pyroclastic surges contain a higher proportion of gases and fewer solid particles (correct)
What is the main reason for pyroclastic surges being low density flows?
What is the main reason for pyroclastic surges being low density flows?
Which type of pyroclastic surge occurs at the base of the eruptive column as it is collapsing?
Which type of pyroclastic surge occurs at the base of the eruptive column as it is collapsing?
What is the main difference between a pyroclastic flow and a lava flow?
What is the main difference between a pyroclastic flow and a lava flow?
In which type of eruption are pyroclastic flows typically generated?
In which type of eruption are pyroclastic flows typically generated?
What can cause the generation of a pyroclastic flow when the hot material is not immediately thrown into the air?
What can cause the generation of a pyroclastic flow when the hot material is not immediately thrown into the air?
What is a lava dome according to the text?
What is a lava dome according to the text?
When does the third type of pyroclastic flow occur according to the text?
When does the third type of pyroclastic flow occur according to the text?
What is the primary reason that pyroclastic flows are considered extremely dangerous?
What is the primary reason that pyroclastic flows are considered extremely dangerous?
What are the main components of pyroclastic flows?
What are the main components of pyroclastic flows?
Why was the term 'nuee ardente' used to describe pyroclastic flows?
Why was the term 'nuee ardente' used to describe pyroclastic flows?
What is the primary difference between Nuee Ardente and Pumice flows?
What is the primary difference between Nuee Ardente and Pumice flows?
What is the significance of the word 'lapilli' in the context of pyroclastic materials?
What is the significance of the word 'lapilli' in the context of pyroclastic materials?
