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Questions and Answers
What is the main difference between ignimbrites and nuee ardente flows?
What is the main difference between ignimbrites and nuee ardente flows?
- Ignimbrites are deposits that contain a higher proportion of gases, while nuee ardente flows are made mostly of solid particles.
- Ignimbrites are deposits for pumice flows, while nuee ardente flows are deposits for ash clouds.
- Ignimbrites can vary in length from a few kilometers to tens of kilometers, while nuee ardente flows are confined to flowing downslope.
- Ignimbrites contain a high percentage of pumice and ash, while nuee ardente flows are low density and move quickly. (correct)
What is the etymology of the word 'ignimbrite'?
What is the etymology of the word 'ignimbrite'?
- From the Latin words ignis - meaning wind, imbris - meaning fire.
- From the Latin words igni - meaning water, imbri - meaning fire.
- From the Latin words igni - meaning fire, imbri - meaning rain. (correct)
- From the Latin words ignis - meaning fire, imbris - meaning earth.
What is a pyroclastic surge characterized by?
What is a pyroclastic surge characterized by?
- A pyroclastic surge is a high density flow of gases and solid particles.
- A pyroclastic surge contains a lower proportion of gases and more solid particles. (correct)
- A pyroclastic surge moves slowly and is confined to flowing downslope.
- A pyroclastic surge is not turbulent and moves at the speed of hurricanes.
How do ignimbrites vary in thickness?
How do ignimbrites vary in thickness?
What differentiates a base surge from an ash cloud surge?
What differentiates a base surge from an ash cloud surge?
Why are pyroclastic surges considered extremely dangerous?
Why are pyroclastic surges considered extremely dangerous?
What do ignimbrites contain a high percentage of?
What do ignimbrites contain a high percentage of?
What is the origin of the word 'ignimbrite'?
What is the origin of the word 'ignimbrite'?
What makes pyroclastic surges move quickly?
What makes pyroclastic surges move quickly?
How do ignimbrites vary in length?
How do ignimbrites vary in length?
What characterizes a pyroclastic surge?
What characterizes a pyroclastic surge?
What is the main reason pyroclastic surges are difficult to protect oneself from?
What is the main reason pyroclastic surges are difficult to protect oneself from?