Mount Erebus

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Mount Erebus
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A lava flow spilled out of the lava lake on the
right side of the image. Final flow length is
approximately 20 meters.
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Quick Facts

• Location Antarctica, Ross Island on Ross sea
• Age less than one million years old
• Elevation 12,444 feet, 3,794 m
• Coordinates 77.5S, 167.2E

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Small ash eruption from central vent.
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A quick succession of two small strombolian
eruptionsfrom main lava lake. This eruption
sequence is verysimilar to another eruption
earlier.
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More Info

• Erebus is an active volcano with a
  convecting lava lake within a summit. It has been
  continuously active since 1972.
• Most eruptions are small and stombolian in
  character.

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Lava Composition

• The lava within the lava lake is alkalic in
  composition. Specifically, it is called
  anorthoclase phonolite. Anorthoclase is a
  feldspar mineral. Phonolite refers to rocks made
  of the minerals alkali feldspar and nepheline.
  Alkalic lava is common in rift volcanoes.

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Works Cited

• Volcano world http//volcano.und.edu/
• Mt. Erebus Volcano Observatory
  www.ees.nmt.edu/Geop/mevo/mevo.html