Feeder, Dykes and Sills Flashcards
1
Q
What is a volcano feeder?
A
Long complex set of cracks through to the mantle and continental crusts which hot gas, corrosive magma travel through the surface.
2
Q
Do most feeder reach the surface
A
No, most feeders do not reach the surface.
3
Q
What happens after the magma passes through?
A
Usually, the feeder seals, the pressure is lower and the magma cools and forms a dyke and may inject itself into a horizontal gaps in rock layers to form flat sills.
