Yellow Stone

Question 1

What type of volcano is Yellowstone

Answer 1

A super volcano

Question 2

What is a super volcano and how is it formed?

Answer 2

It is a depression in the ground called a caldera.
It forms when a it spot produces a fume of magma which is trapped beneath the earths crust and forms a giant magma chamber. As it does so the ground underneath begins to bulge. As the pressure reaches breaking point the ground ruptures producing a huge eruption. As the pressure is released and the chamber empties the ground above it sinks down forming a caldera.

Question 3

How much magma roughly would yellow stone produce

Answer 3

More than 1000cubic km (VEI 8)

Question 4

What would be the effects on the USA (4)

Answer 4

3/4 of the USA could be covered with ash
within 1000km of the blast, 90% of the population may be killed
Increased rainfall at trigger increased mudslides
Buildings would collapse due to ash falling on them

Question 5

What would be the effects worldwide? (3)

Answer 5

Food supplies would be reduced
Sulphur gas would form sulphuric acid aerosols which would decrease the temperature by around 12c
Acid rain could kill off up to 75% of plant species

Question 6

Why do people visit yellowstone?

Answer 6

To see the hot springs, mud pools and geysers