John Seach, Volcano Live

 Lava Tower - John Seach

A lava tower is a pillar of scoriaceous material witha lava coating.
The pillars have a diameter of several metres and heights of more than 10 metres.
Lava towers form as an eddy of scoria in a lava flow which remain as a tower
when the lava drains away.

lava tower
Copyright John Seach