A pyroclastic flow is

a rapid-moving, ground-hugging volcanic flow

a volcanic explosion under an ice sheet.

Most melt at a subduction zone is generated by

addition of volatiles into the asthenosphere

heat transfer melting of the subducting plate

decompression melting of the subducting plate

decompression melting of the asthenosphere

There is no volcanic activity at a subduction zone

at volcanic vents in the deep ocean

Quiz

Kelly MacGarrigle 6 questions Updated 14 Dec 2021

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1What is the name given to an igneous intrusion that cuts vertically through layers of rock?
1. Asill
2. Bdike
3. Clava flow
4. Dlaccolith
5. Epyroclastic flow
2The melting associated with the addition of carbon dioxide (CO2) or water (H2O) to rocks is referred to as
1. Apressure melting
2. Bdecompression melting
3. Caddition of volatiles
4. Dsubduction of volatiles
5. Epressure addition
3A pyroclastic flow is
1. Aa slow volcanic flow
2. Ba subsurface volcanic flow
3. Ca high-altitude volcanic event
4. Da rapid-moving, ground-hugging volcanic flow
5. Ea volcanic explosion under an ice sheet.
4Most melt at a subduction zone is generated by
1. Aheat transfer melting of the subducting plate
2. Bdecompression melting of the subducting plate
3. Caddition of volatiles into the asthenosphere
4. Ddecompression melting of the asthenosphere
5. EThere is no volcanic activity at a subduction zone
5Where do pillow basalts primarily form?
1. Ain subduction zones
2. Bin pyroclastic flows
3. Cat volcanic vents in the deep ocean
4. Din volcanic breccias
6What term is used to describe the progressive change in magma composition as a result of gradual cooling?
1. Afractional crystallization
2. Bpartial melting
3. Cdecompression melting
4. Daddition of volatiles

Description: Geology Quiz on Chapter 6, created by Kelly MacGarrigle on 14/12/2021.
Author: Kelly MacGarrigle
Language: English
Views: 0
History: Created on 14 Dec 2021 · updated on 14 Dec 2021
Tags: geology
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