Volcanism on Mars - Quiz
Volcanism on Mars
  • 1. When did the Mariner 9 mission first reveal the extent of Martian volcanic features?
A) 1985
B) 1995
C) 1960
D) 1972
  • 2. What is the largest known volcano in the Solar System located on Mars?
A) Ascraeus Mons
B) Tharsis Montes
C) Elysium Mons
D) Olympus Mons
  • 3. What is the age range of Martian volcanic features?
A) Hesperian to early Noachian
B) Noachian to late Amazonian
C) Late Amazonian only
D) Pre-Noachian to modern day
  • 4. What is a principal way that planets release internal heat?
A) Atmospheric cooling
B) Solar radiation absorption
C) Tectonic plate movement
D) Volcanism
  • 5. What are the three components of erupted volcanic materials?
A) Lava, tephra, and gases
B) Plutons, dikes, and sills
C) Sediment, ash, and ice
D) Magma, granite, and water
  • 6. What is magma primarily composed of?
A) Water vapor and metallic ores
B) Liquid iron, oxygen, and dust
C) Molten silicates, suspended crystals, and dissolved gases
D) Frozen nitrogen and silicate rock
  • 7. What happens when magma density matches the density of the host rock?
A) The magma cools into granite
B) The magma erupts immediately
C) Buoyancy is neutralized and the magma stalls
D) The magma solidifies instantly
  • 8. Approximately what percentage of magma on Earth stalls in the crust?
A) 95%
B) 80%
C) 50%
D) 20%
  • 9. What is the term for magma that closely resembles the composition of its mantle source?
A) Primitive
B) Felsic
C) Evolved
D) Mafic
  • 10. Which term describes magmas that are enriched in silica and light elements?
A) Basaltic
B) Felsic
C) Mafic
D) Primitive
  • 11. What are mafic magmas primarily enriched in?
A) Iron and magnesium
B) Water and carbon dioxide
C) Silica and volatiles
D) Granite and feldspar
  • 12. What are fine-grained tephra particles commonly called?
A) Plutons
B) Volcanic ash
C) Diapirs
D) Basalt
  • 13. What causes the formation of glassy shards during an eruption?
A) Reaction with atmospheric oxygen
B) Extreme heat from the mantle
C) Rapid expansion and cooling from bubble nucleation
D) Crystallization of silicate minerals
  • 14. What type of eruption occurs when magma makes contact with groundwater?
A) Effusive
B) Hydromagmatic
C) Basaltic
D) Viscous
  • 15. What are the common volatile gases found in magma?
A) Oxygen and nitrogen
B) Helium and hydrogen
C) Methane and sulfur
D) Carbon dioxide and water vapor
  • 16. How does Mars compare in size to Earth and the Moon regarding magmatic activity?
A) Smaller than the Moon
B) Intermediate
C) Larger than Earth
D) Equal to Earth
  • 17. What is the most common form of volcanism on Earth?
A) Explosive
B) Rhyolitic
C) Basaltic
D) Andesitic
  • 18. Where are basaltic rocks on Earth derived from?
A) Sedimentary accumulation
B) Partial melting of the upper mantle
C) Subduction of oceanic crust
D) The Earth's core
  • 19. What forms when a volcanic convective column fails to incorporate enough atmosphere?
A) Pyroclastic flows
B) Lava fountains
C) Mid-plate hotspots
D) Cinder cones
  • 20. How do eruption frequencies compare between Mars and Earth?
A) Eruptions occur only on Earth
B) Eruptions are less frequent on Mars
C) Eruption frequency is identical
D) Eruptions are more frequent on Mars
  • 21. Where was a massive, young lava flow the size of Oregon recently described?
A) Elysium Planitia
B) Gale Crater
C) Olympus Mons
D) Tharsis region
  • 22. How do Martian volcanoes differ from terrestrial volcanoes regarding tectonic settings?
A) Mars volcanoes are restricted to subduction zones
B) Mars lacks plate tectonics
C) Mars has more divergent boundaries
D) Mars has more convergent boundaries
  • 23. Martian volcanoes are most analogous to which terrestrial features?
A) Mid-plate volcanoes
B) Subduction zone volcanoes
C) Supervolcanoes
D) Oceanic ridge volcanoes
  • 24. What is the primary reason Martian volcanoes can grow to such colossal sizes?
A) Greater number of mantle plumes
B) Higher surface gravity
C) Higher magma viscosity
D) Absence of plate tectonics
  • 25. How high is Olympus Mons?
A) 5 km
B) 550 km
C) 100 km
D) 21 km
  • 26. What 2015 discovery in Gale Crater suggested a more prevalent role for silicic volcanism?
A) Magnesium
B) Basalt
C) Tridymite
D) Cinder
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