Surtseyan
Eruptions - John Seach
Surtseyan eruptions are caused by
explosive water-magma interactions. Surtseyan eruptions
produce characteristic "rooster tail"
ejections of ash and clasts. The tephra is fine grained and
deposited as base surge or air fall
deposits. Magma is erupted into water.
This type of eruption was seen at
Surtsey volcano.




Surtseyan Eruptions
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Copyright John Seach