Mountain Building

Question 1

What is a shield volcano?

Answer 1

Large volcano with a gentle slope
Formed by fluid mafic lava over multiple eruptions

Question 2

What is a strato-volcano

Answer 2

Has a steep profile, built up felsic lava

Question 3

What is a cinder cone volcano?

Answer 3

Formed by ejected lava fragments of a small size

Question 4

What is a caldera volcano?

Answer 4

Formed by the below ground chamber emptying quickly and collapsing

Question 5

What is a fissure eruption?

Answer 5

Eruption where lava extrudes from narrow cracks. Cools to form columns. Can be several km thick

Question 6

What is deformation?

Answer 6

General term for folding, faulting, shearing, compression or extension of rocks

Question 7

What is a fold?

Answer 7

A bent layer or series of layers that where originally horizontal
Caused by plate collision
Anticlines = A shaped folds
Synclines = U shaped folds

Question 8

What is a fault?

Answer 8

Break in a rock where movement has occurred.
Can be a dip-slip (up/down displacement)

Question 9

What is a joint?

Answer 9

Break in the rock where no movement has occurred.