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Mount Erebus.

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Presentation on theme: "Mount Erebus."— Presentation transcript:

1 Mount Erebus

2 A lava flow spilled out of the lava lake on the right side of the image. Final flow length is approximately 20 meters.

3 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

4 Small ash eruption from central vent.

5 A quick succession of two small strombolian eruptions from main lava lake. This eruption sequence is very similar to another eruption earlier.

6 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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8 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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10 Works Cited Volcano world: http://volcano.und.edu/
Mt. Erebus Volcano Observatory:


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