pyroclastic flow

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English[edit]

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Wikipedia

Pyroclastic flow flowing down Mayon Volcano.

Etymology[edit]

From pyroclastic + flow.

Pronunciation[edit]

  • (file)
  • (UK) IPA(key): /ˈpʌɪ.ɹə.kla.stɪk fləʊ/

Noun[edit]

pyroclastic flow (plural pyroclastic flows)

  1. (volcanology) A dense flow of volcanic ash, dust, rocks and debris that cascades at high speed down the slope of a volcano during an eruption.
    • 2004, China Miéville, Iron Council, 2005 trade paperback, p. 465:
      In burning slabs like pyroclastic flow the top of the tower slewed off, militia pods falling out and tumbling.
    • 2011, Richard Fortey, The Earth, Folio Society 2011, p. x:
      Most of the material was erupted in the most dangerous way as ‘pyroclastic flows’: incredibly hot volcanic fragments all buoyed up with gas that can travel fasted than a speeding car in pulse after pulse.

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