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Subglacial volcano - Quiz
Contributed by: Appleby
  • 1. What is another name for a subglacial volcano?
A) Stratovolcano
B) Submarine volcano
C) Glaciovolcano
D) Supervolcano
  • 2. Where are subglacial volcanoes most common today?
A) Chile and New Zealand
B) Canada and Russia
C) Iceland and Antarctica
D) Greenland and Norway
  • 3. What forms when lava is rapidly cooled by water during a subglacial eruption?
A) Pumice stone
B) Basalt columns
C) Obsidian glass
D) Pillow lava
  • 4. What geological features form when pillow lavas break off and roll down slopes?
A) Sedimentary sandstone
B) Pillow breccia, tuff breccia, and hyaloclastite
C) Limestone deposits
D) Granite intrusions
  • 5. Which specific Icelandic volcano erupted in 1996, causing a massive flood?
A) Katla
B) Eyjafjallajökull
C) Hekla
D) Grímsvötn
  • 6. What is a characteristic physical shape of a subglacial volcano?
A) Long narrow ridges
B) Perfectly spherical
C) Deep inverted craters
D) Flattened top and steep sides
  • 7. Who coined the term 'tuya' in 1947?
A) Hugh Corr
B) Bill Mathews
C) David Vaughan
D) Jack Farmer
  • 8. What is another name for a tuya used in Iceland?
A) Glacier hill
B) Fire ridge
C) Ice peak
D) Table mountain
  • 9. What is a 'jökulhlaup'?
A) A great flood of water
B) An earthquake
C) A landslide
D) An ash cloud
  • 10. How much ice was melted by the 1996 Grímsvötn eruption?
A) 3 km3
B) 10 km3
C) 0.5 km3
D) 1 km3
  • 11. Which scientists reported an Antarctic subglacial eruption from 2,200 years ago?
A) Bill Mathews and Sonia Esperanca
B) Hugh Corr and David Vaughan
C) Viking and Mars Orbiter teams
D) Meredith Payne and Jack Farmer
  • 12. Where was the volcanic ash from the 2,200-year-old Antarctic eruption deposited?
A) On the base of the Pine Island Glacier
B) In the middle of the Ross Sea
C) In deep subglacial tunnels
D) On the ice surface under the Hudson Mountains
  • 13. What chemical compounds are used to identify volcanic eruptions in ice cores?
A) CO2 and Methane
B) Oxygen and Nitrogen
C) NO3 and SO4
D) Helium and Argon
  • 14. Why do researchers study Mars for subglacial volcanoes?
A) To create new landing sites
B) To mine precious metals
C) To measure tectonic plate movement
D) To find potential habitats for microbes
  • 15. What keeps a subglacial volcano from collapsing during formation?
A) Solid granite foundations
B) Pressure of surrounding ice and meltwater
C) Rapid cooling of the lava
D) The high viscosity of the lava
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