Shield Volcanoes Flashcards
1
Q
What do they look like?
A
A broad-shaped, gently sloping cone, HUGE IN SIZE
2
Q
How are they formed?
A
Built almost entirely of fluid lava flows Lava spills out of a central vent or group of vents. A broad-shaped, gently sloping cone is formed. S- fluid flows
3
Q
Why are they formed the way they are?
A
Because it has fluid basaltic lava that can’t be piled up into steep mounds.
4
Q
Where do they take place
A
They occur along the mid-oceanic ridge and subduction-related volcanic arcs
5
Q
What happens in the mid-oceanic ridge
A
sea-floor spreading is in progress
6
Q
What are eruptions characterized with?
A
Low-explosivity lava-fountaining that forms cinder cones.
