Lava balloons—peculiar products of basaltic submarine eruptions

@article{Kueppers2012LavaBP,
  title={Lava balloons—peculiar products of basaltic submarine eruptions},
  author={Ulrich Kueppers and Alexander R. L. Nichols and Vittorio Zanon and Marcel Potu{\vz}{\'a}k and Jose M. R. Pacheco},
  journal={Bulletin of Volcanology},
  year={2012},
  volume={74},
  pages={1379-1393}
}
Between December 1998 and April 2001, a submarine basaltic eruption occurred west of Terceira Island, Azores (Portugal) in water depths between 300 and 1,000 m. Physical evidence for the eruption was provided by the periodic occurrence of hot lava “balloons” floating on the sea surface. The balloons consisted of a large gas-filled cavity surrounded by a thin shell (a few centimetres thick). The shells of the collected balloons are composed of two layers, termed the outer layer and the inner… 
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