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Spectroscopic evidence for a lava fountain driven by previously accumulated magmatic gas

Author

Listed:
  • Patrick Allard

    (INGV
    Laboratoire Pierre Süe, CNRS-CEA, CE-Saclay)

  • Mike Burton

    (INGV)

  • Filippo Muré

    (INGV)

Abstract

Etna turns up the gas The eruption of Mount Etna in 2000 was notable for an exceptional series of 64 periodic lava fountains, propelling lava fragments to heights of up to 900 metres. It has been difficult to determine which of two suggested sources of power — gas release from the magma itself during its rapid ascent or a build-up of pressure from gas accumulated at depth — is the driving force for these dramatic jets. But one of the Etna fountains provided volcanologists with the opportunity to use remote sensing (not that remote; see picture on the following page) to determine the infrared spectra of the gas phase. This revealed the chemical composition of the gas that powered this fountain as consistent with an origin in an accumulated gas layer.

Suggested Citation

  • Patrick Allard & Mike Burton & Filippo Muré, 2005. "Spectroscopic evidence for a lava fountain driven by previously accumulated magmatic gas," Nature, Nature, vol. 433(7024), pages 407-410, January.
    • Handle: RePEc:nat:nature:v:433:y:2005:i:7024:d:10.1038_nature03246
    DOI: 10.1038/nature03246
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    Cited by:

    1. Samuel Scott & Melissa Pfeffer & Clive Oppenheimer & Enikö Bali & Oliver D. Lamb & Talfan Barnie & Andrew W. Woods & Rikey Kjartansdóttir & Andri Stefánsson, 2023. "Near-surface magma flow instability drives cyclic lava fountaining at Fagradalsfjall, Iceland," Nature Communications, Nature, vol. 14(1), pages 1-9, December.

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