Minor Extrusive Activity

Question 1

What is a minor extrusive landform?

Answer 1

A smaller and less extreme form of vulcanicity to Volcanoes

Question 2

What is a Geyser?

Answer 2

Extremely hot discharges of steam from the earths surface

Question 3

How do Geysers form?

Answer 3

Water chambers heated to an extreme temperature due to surrounding close distance magma

Question 4

Give an example of a Geyser

Answer 4

“Old Faithful”, Yellowstone National Park

Question 5

Describe a geyser eruption

Answer 5

Intermittent and very high (100-200m tall)

Question 6

What is a fumarole?

Answer 6

Openings in the earths crust that emit a broad range of ages and steam.

Question 7

What gases can be emitted from a fumarole?

Answer 7

SO2, CO2, HCL, H2S, Water Vapour

Question 8

If the fumarole releases sulphur dioxide what is it called?

Answer 8

Solfataras

Question 9

Give an example of a solfatara?

Answer 9

Naples Italy

Question 10

What is a Hot Spring?

Answer 10

A very hot pool of water heated by the underlying volcanic activity.

Question 11

Give an example of a Hot Spring and explain its USP

Answer 11

Grand Prismatic Spring, Yellowstone It’s got different colours because Cyanobacteria thrive in the habitat and are very diverse

Question 12

What is a Mud Pool?

Answer 12

Intensely heated pool of mud containing lots of gases